diff --git a/.travis.yml b/.travis.yml
index 8476bf27..9a4ea0f5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,6 +37,7 @@ script:
   - cd ../..
   - mkdir firmware/build-hackrf-one
   - mkdir firmware/build-jawbreaker
+  - mkdir firmware/build-rad1o
   - cd firmware/libopencm3
   - make
   - cd ../build-hackrf-one
@@ -45,6 +46,9 @@ script:
   - cd ../build-jawbreaker
   - cmake -DBOARD=JAWBREAKER ..
   - make
+  - cd ../build-rad1o
+  - cmake -DBOARD=RAD1O ..
+  - make
 
 addons:
   apt:
diff --git a/firmware/README b/firmware/README
index e6087c2c..58ea89d1 100644
--- a/firmware/README
+++ b/firmware/README
@@ -32,6 +32,7 @@ $ make
 $ hackrf_spiflash -w hackrf_usb.bin
 
 If you have a Jawbreaker, add -DBOARD=JAWBREAKER to the cmake command.
+If you have a rad1o, use -DBOARD=RAD1O instead.
 
 
 It is possible to use a USB Device Firmware Upgrade (DFU) method to load
diff --git a/firmware/common/hackrf-ui.h b/firmware/common/hackrf-ui.h
new file mode 100644
index 00000000..95b82489
--- /dev/null
+++ b/firmware/common/hackrf-ui.h
@@ -0,0 +1,17 @@
+#ifndef HACKRF_UI_H
+#define HACKRF_UI_H
+
+#include <rf_path.h>
+#include <stdint.h>
+
+void hackrf_ui_init(void) __attribute__((weak));
+void hackrf_ui_setFrequency(uint64_t _freq) __attribute__((weak));
+void hackrf_ui_setSampleRate(uint32_t _sample_rate) __attribute__((weak));
+void hackrf_ui_setDirection(const rf_path_direction_t _direction) __attribute__((weak));
+void hackrf_ui_setFilterBW(uint32_t bw) __attribute__((weak));
+void hackrf_ui_setLNAPower(bool _lna_on) __attribute__((weak));
+void hackrf_ui_setBBLNAGain(const uint32_t gain_db) __attribute__((weak));
+void hackrf_ui_setBBVGAGain(const uint32_t gain_db) __attribute__((weak));
+void hackrf_ui_setBBTXVGAGain(const uint32_t gain_db) __attribute__((weak));
+
+#endif
diff --git a/firmware/common/hackrf_core.c b/firmware/common/hackrf_core.c
index 545b57e5..185dc5b7 100644
--- a/firmware/common/hackrf_core.c
+++ b/firmware/common/hackrf_core.c
@@ -22,14 +22,13 @@
  */
 
 #include "hackrf_core.h"
+#include "hackrf-ui.h"
 #include "si5351c.h"
 #include "spi_ssp.h"
 #include "max2837.h"
 #include "max2837_target.h"
 #include "max5864.h"
 #include "max5864_target.h"
-#include "rffc5071.h"
-#include "rffc5071_spi.h"
 #include "w25q80bv.h"
 #include "w25q80bv_target.h"
 #include "i2c_bus.h"
@@ -47,10 +46,13 @@
 #define WAIT_CPU_CLOCK_INIT_DELAY   (10000)
 
 /* GPIO Output PinMux */
-static struct gpio_t gpio_led[3] = {
+static struct gpio_t gpio_led[] = {
 	GPIO(2,  1),
 	GPIO(2,  2),
-	GPIO(2,  8)
+	GPIO(2,  8),
+#ifdef RAD1O
+	GPIO(5,  26),
+#endif
 };
 
 static struct gpio_t gpio_1v8_enable		= GPIO(3,  6);
@@ -74,19 +76,7 @@ static struct gpio_t gpio_max2837_b7		= GPIO(2, 15);
 /* MAX5864 SPI chip select (AD_CS) GPIO PinMux */
 static struct gpio_t gpio_max5864_select	= GPIO(2,  7);
 
-/* RFFC5071 GPIO serial interface PinMux */
-#ifdef JELLYBEAN
-static struct gpio_t gpio_rffc5072_select	= GPIO(3,  8);
-static struct gpio_t gpio_rffc5072_clock	= GPIO(3,  9);
-static struct gpio_t gpio_rffc5072_data		= GPIO(3, 10);
-static struct gpio_t gpio_rffc5072_reset	= GPIO(3, 11);
-#endif
-#if (defined JAWBREAKER || defined HACKRF_ONE)
-static struct gpio_t gpio_rffc5072_select	= GPIO(2, 13);
-static struct gpio_t gpio_rffc5072_clock	= GPIO(5,  6);
-static struct gpio_t gpio_rffc5072_data		= GPIO(3,  3);
-static struct gpio_t gpio_rffc5072_reset	= GPIO(2, 14);
-
+#if (defined JAWBREAKER || defined HACKRF_ONE || defined RAD1O)
 /*
 static struct gpio_t gpio_sync_in_a		= GPIO(3,  8);
 static struct gpio_t gpio_sync_in_b		= GPIO(3,  9);
@@ -108,6 +98,9 @@ static struct gpio_t gpio_sync_out_b		= GPIO(3, 9);
 #ifdef HACKRF_ONE
 static struct gpio_t gpio_vaa_disable		= GPIO(2, 9);
 #endif
+#ifdef RAD1O
+static struct gpio_t gpio_vaa_enable		= GPIO(2, 9);
+#endif
 
 static struct gpio_t gpio_w25q80bv_hold		= GPIO(1, 14);
 static struct gpio_t gpio_w25q80bv_wp		= GPIO(1, 15);
@@ -129,6 +122,20 @@ static struct gpio_t gpio_amp_bypass		= GPIO(0, 14);
 static struct gpio_t gpio_rx_amp			= GPIO(1, 11);
 static struct gpio_t gpio_no_rx_amp_pwr		= GPIO(1, 12);
 #endif
+#ifdef RAD1O
+static struct gpio_t gpio_tx_rx_n			= GPIO(0,  11);
+static struct gpio_t gpio_tx_rx				= GPIO(0,  14);
+static struct gpio_t gpio_by_mix			= GPIO(1,  12);
+static struct gpio_t gpio_by_mix_n			= GPIO(2,  10);
+static struct gpio_t gpio_by_amp			= GPIO(1,  0);
+static struct gpio_t gpio_by_amp_n			= GPIO(5,  5);
+static struct gpio_t gpio_mixer_en			= GPIO(5,  16);
+static struct gpio_t gpio_low_high_filt		= GPIO(2,  11);
+static struct gpio_t gpio_low_high_filt_n	= GPIO(2,  12);
+static struct gpio_t gpio_tx_amp			= GPIO(2,  15);
+static struct gpio_t gpio_rx_lna			= GPIO(5,  15);
+#endif
+
 #if 0
 /* GPIO Input */
 static struct gpio_t gpio_boot[] = {
@@ -141,7 +148,7 @@ static struct gpio_t gpio_boot[] = {
 /* CPLD JTAG interface GPIO pins */
 static struct gpio_t gpio_cpld_tdo			= GPIO(5, 18);
 static struct gpio_t gpio_cpld_tck			= GPIO(3,  0);
-#ifdef HACKRF_ONE
+#if defined HACKRF_ONE || defined RAD1O
 static struct gpio_t gpio_cpld_tms			= GPIO(3,  4);
 static struct gpio_t gpio_cpld_tdi			= GPIO(3,  1);
 #else
@@ -244,25 +251,6 @@ max5864_driver_t max5864 = {
 	.target_init = max5864_target_init,
 };
 
-const rffc5071_spi_config_t rffc5071_spi_config = {
-	.gpio_select = &gpio_rffc5072_select,
-	.gpio_clock = &gpio_rffc5072_clock,
-	.gpio_data = &gpio_rffc5072_data,
-};
-
-spi_bus_t spi_bus_rffc5071 = {
-	.config = &rffc5071_spi_config,
-	.start = rffc5071_spi_start,
-	.stop = rffc5071_spi_stop,
-	.transfer = rffc5071_spi_transfer,
-	.transfer_gather = rffc5071_spi_transfer_gather,
-};
-
-rffc5071_driver_t rffc5072 = {
-	.bus = &spi_bus_rffc5071,
-	.gpio_reset = &gpio_rffc5072_reset,
-};
-
 const ssp_config_t ssp_config_w25q80bv = {
 	.data_bits = SSP_DATA_8BITS,
 	.serial_clock_rate = 2,
@@ -313,6 +301,19 @@ rf_path_t rf_path = {
 	.gpio_rx_amp = &gpio_rx_amp,
 	.gpio_no_rx_amp_pwr = &gpio_no_rx_amp_pwr,
 #endif
+#ifdef RAD1O
+	.gpio_tx_rx_n = &gpio_tx_rx_n,
+	.gpio_tx_rx = &gpio_tx_rx,
+	.gpio_by_mix = &gpio_by_mix,
+	.gpio_by_mix_n = &gpio_by_mix_n,
+	.gpio_by_amp = &gpio_by_amp,
+	.gpio_by_amp_n = &gpio_by_amp_n,
+	.gpio_mixer_en = &gpio_mixer_en,
+	.gpio_low_high_filt = &gpio_low_high_filt,
+	.gpio_low_high_filt_n = &gpio_low_high_filt_n,
+	.gpio_tx_amp = &gpio_tx_amp,
+	.gpio_rx_lna = &gpio_rx_lna,
+#endif
 };
 
 jtag_gpio_t jtag_gpio_cpld = {
@@ -377,6 +378,8 @@ bool sample_rate_frac_set(uint32_t rate_num, uint32_t rate_denom)
 	uint32_t a, b, c;
 	uint32_t rem;
 
+	hackrf_ui_setSampleRate(rate_num/2);
+
 	/* Find best config */
 	a = (VCO_FREQ * rate_denom) / rate_num;
 
@@ -460,7 +463,9 @@ bool sample_rate_set(const uint32_t sample_rate_hz) {
 	default:
 		return false;
 	}
-	
+
+	hackrf_ui_setSampleRate(sample_rate_hz);
+
 	/* NOTE: Because MS1, 2, 3 outputs are slaved to PLLA, the p1, p2, p3
 	 * values are irrelevant. */
 	
@@ -476,7 +481,7 @@ bool sample_rate_set(const uint32_t sample_rate_hz) {
 	return true;
 #endif
 
-#if (defined JAWBREAKER || defined HACKRF_ONE)
+#if (defined JAWBREAKER || defined HACKRF_ONE || defined RAD1O)
 	uint32_t p1 = 4608;
 	uint32_t p2 = 0;
 	uint32_t p3 = 0;
@@ -541,7 +546,11 @@ bool sample_rate_set(const uint32_t sample_rate_hz) {
 }
 
 bool baseband_filter_bandwidth_set(const uint32_t bandwidth_hz) {
-	return max2837_set_lpf_bandwidth(&max2837, bandwidth_hz);
+	uint32_t bandwidth_hz_real = max2837_set_lpf_bandwidth(&max2837, bandwidth_hz);
+
+	if(bandwidth_hz_real) hackrf_ui_setFilterBW(bandwidth_hz_real);
+
+	return bandwidth_hz_real != 0;
 }
 
 /* clock startup for Jellybean with Lemondrop attached
@@ -616,6 +625,33 @@ void cpu_clock_init(void)
 	si5351c_write(&clock_gen, ms7data, sizeof(ms7data));
 #endif
 
+#ifdef RAD1O
+	/* rad1o clocks:
+	 *   CLK0 -> MAX5864/CPLD
+	 *   CLK1 -> CPLD
+	 *   CLK2 -> SGPIO
+	 *   CLK3 -> External Clock Output
+	 *   CLK4 -> MAX2837
+	 *   CLK5 -> MAX2871
+	 *   CLK6 -> none
+	 *   CLK7 -> LPC4330 (but LPC4330 starts up on its own crystal) */
+
+	/* MS3/CLK3 is the source for the external clock output. */
+	si5351c_configure_multisynth(&clock_gen, 3, 80*128-512, 0, 1, 0); /* 800/80 = 10MHz */
+
+	/* MS4/CLK4 is the source for the MAX2837 clock input. */
+	si5351c_configure_multisynth(&clock_gen, 4, 20*128-512, 0, 1, 0); /* 800/20 = 40MHz */
+
+	/* MS5/CLK5 is the source for the RFFC5071 mixer. */
+	si5351c_configure_multisynth(&clock_gen, 5, 20*128-512, 0, 1, 0); /* 800/20 = 40MHz */
+
+	/* MS6/CLK6 is unused. */
+
+	/* MS7/CLK7 is the source for the LPC43xx microcontroller. */
+	uint8_t ms7data[] = { 90, 255, 20, 0 };
+	si5351c_write(&clock_gen, ms7data, sizeof(ms7data));
+#endif
+
 	/* Set to 10 MHz, the common rate between Jellybean and Jawbreaker. */
 	sample_rate_set(10000000);
 
@@ -893,7 +929,10 @@ void pin_setup(void) {
 	scu_pinmux(SCU_PINMUX_LED1, SCU_GPIO_NOPULL);
 	scu_pinmux(SCU_PINMUX_LED2, SCU_GPIO_NOPULL);
 	scu_pinmux(SCU_PINMUX_LED3, SCU_GPIO_NOPULL);
-	
+#ifdef RAD1O
+	scu_pinmux(SCU_PINMUX_LED4, SCU_GPIO_NOPULL | SCU_CONF_FUNCTION4);
+#endif
+
 	scu_pinmux(SCU_PINMUX_EN1V8, SCU_GPIO_NOPULL);
 
 	/* Configure USB indicators */
@@ -908,6 +947,9 @@ void pin_setup(void) {
 	gpio_output(&gpio_led[0]);
 	gpio_output(&gpio_led[1]);
 	gpio_output(&gpio_led[2]);
+#ifdef RAD1O
+	gpio_output(&gpio_led[3]);
+#endif
 
 	gpio_output(&gpio_1v8_enable);
 
@@ -928,11 +970,29 @@ void pin_setup(void) {
 	gpio_output(&gpio_sync_out_b);
 #endif
 
+#ifdef RAD1O
+	/* Configure RF power supply (VAA) switch control signal as output */
+	gpio_output(&gpio_vaa_enable);
+
+	/* Safe state: start with VAA turned off: */
+	disable_rf_power();
+
+	scu_pinmux(SCU_PINMUX_GPIO3_10, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_PINMUX_GPIO3_11, SCU_GPIO_PDN | SCU_CONF_FUNCTION0);
+
+	gpio_input(&gpio_sync_in_a);
+	gpio_input(&gpio_sync_in_b);
+
+	gpio_output(&gpio_sync_out_a);
+	gpio_output(&gpio_sync_out_b);
+#endif
+
 	/* enable input on SCL and SDA pins */
 	SCU_SFSI2C0 = SCU_I2C0_NOMINAL;
 
 	spi_bus_start(&spi_bus_ssp1, &ssp_config_max2837);
-	spi_bus_start(&spi_bus_rffc5071, &rffc5071_spi_config);
+
+	mixer_bus_setup(&mixer);
 
 	rf_path_pin_setup(&rf_path);
 	
@@ -960,6 +1020,16 @@ void disable_rf_power(void) {
 }
 #endif
 
+#ifdef RAD1O
+void enable_rf_power(void) {
+	gpio_set(&gpio_vaa_enable);
+}
+
+void disable_rf_power(void) {
+	gpio_clear(&gpio_vaa_enable);
+}
+#endif
+
 void led_on(const led_t led) {
 	gpio_set(&gpio_led[led]);
 }
@@ -1001,4 +1071,3 @@ void hw_sync_copy_state() {
 bool hw_sync_ready() {
 	return (gpio_read(&gpio_sync_in_a) && gpio_read(&gpio_sync_in_b));
 }
-
diff --git a/firmware/common/hackrf_core.h b/firmware/common/hackrf_core.h
index 8b4e8316..82cfc52c 100644
--- a/firmware/common/hackrf_core.h
+++ b/firmware/common/hackrf_core.h
@@ -37,7 +37,7 @@ extern "C"
 
 #include "max2837.h"
 #include "max5864.h"
-#include "rffc5071.h"
+#include "mixer.h"
 #include "w25q80bv.h"
 #include "sgpio.h"
 #include "rf_path.h"
@@ -47,6 +47,7 @@ extern "C"
 #define BOARD_ID_JELLYBEAN  0
 #define BOARD_ID_JAWBREAKER 1
 #define BOARD_ID_HACKRF_ONE 2
+#define BOARD_ID_RAD1O      3
 
 #ifdef JELLYBEAN
 #define BOARD_ID BOARD_ID_JELLYBEAN
@@ -60,6 +61,10 @@ extern "C"
 #define BOARD_ID BOARD_ID_HACKRF_ONE
 #endif
 
+#ifdef RAD1O
+#define BOARD_ID BOARD_ID_RAD1O
+#endif
+
 /*
  * SCU PinMux
  */
@@ -68,6 +73,9 @@ extern "C"
 #define SCU_PINMUX_LED1     (P4_1)  /* GPIO2[1] on P4_1 */
 #define SCU_PINMUX_LED2     (P4_2)  /* GPIO2[2] on P4_2 */
 #define SCU_PINMUX_LED3     (P6_12) /* GPIO2[8] on P6_12 */
+#ifdef RAD1O
+#define SCU_PINMUX_LED4     (PB_6) /* GPIO5[26] on PB_6 */
+#endif
 
 #define SCU_PINMUX_EN1V8    (P6_10) /* GPIO3[6] on P6_10 */
 
@@ -92,7 +100,7 @@ extern "C"
 /* CPLD JTAG interface */
 #define SCU_PINMUX_CPLD_TDO (P9_5)  /* GPIO5[18] */
 #define SCU_PINMUX_CPLD_TCK (P6_1)  /* GPIO3[ 0] */
-#ifdef HACKRF_ONE
+#if (defined HACKRF_ONE || defined RAD1O)
 #define SCU_PINMUX_CPLD_TMS (P6_5)  /* GPIO3[ 4] */
 #define SCU_PINMUX_CPLD_TDI (P6_2)  /* GPIO3[ 1] */
 #else
@@ -112,7 +120,7 @@ extern "C"
 #ifdef JELLYBEAN
 #define SCU_PINMUX_SGPIO8   (P1_12)
 #endif
-#if (defined JAWBREAKER || defined HACKRF_ONE)
+#if (defined JAWBREAKER || defined HACKRF_ONE || defined RAD1O)
 #define SCU_PINMUX_SGPIO8   (P9_6)
 #endif
 #define SCU_PINMUX_SGPIO9   (P4_3)
@@ -134,6 +142,12 @@ extern "C"
 #define SCU_XCVR_B6			(P5_5)	/* GPIO2[14] on P5_5 */
 #define SCU_XCVR_B7			(P5_6)	/* GPIO2[15] on P5_6 */
 #endif
+#ifdef RAD1O
+#define SCU_XCVR_RXHP       (P8_1)  /* GPIO[] on P8_1 */
+#define SCU_XCVR_B6         (P8_2)  /* GPIO[] on P8_2 */
+#define SCU_XCVR_B7         (P9_3)  /* GPIO[] on P8_3 */
+#endif
+
 #define SCU_XCVR_ENABLE     (P4_6)  /* GPIO2[6] on P4_6 */
 #define SCU_XCVR_RXENABLE   (P4_5)  /* GPIO2[5] on P4_5 */
 #define SCU_XCVR_TXENABLE   (P4_4)  /* GPIO2[4] on P4_4 */
@@ -155,6 +169,15 @@ extern "C"
 #define SCU_MIXER_SDATA     (P6_4)  /* GPIO3[3] on P6_4 */
 #define SCU_MIXER_RESETX    (P5_5)  /* GPIO2[14] on P5_5 */
 #endif
+#ifdef RAD1O
+#define SCU_VCO_CE          (P5_4)  /* GPIO2[13] on P5_4 */
+#define SCU_VCO_SCLK        (P2_6)  /* GPIO5[6] on P2_6 */
+#define SCU_VCO_SDATA       (P6_4)  /* GPIO3[3] on P6_4 */
+#define SCU_VCO_LE          (P5_5)  /* GPIO2[14] on P5_5 */
+#define SCU_VCO_MUX         (PB_5)  /* GPIO5[25] on PB_5 */
+#define SCU_MIXER_EN        (P6_8)  /* GPIO5[16] on P6_8 */
+#define SCU_SYNT_RFOUT_EN   (P6_9)  /* GPIO3[5] on P6_9 */
+#endif
 
 /* RF LDO control */
 #ifdef JAWBREAKER
@@ -165,6 +188,10 @@ extern "C"
 #ifdef HACKRF_ONE
 #define SCU_NO_VAA_ENABLE   (P5_0)  /* GPIO2[9] on P5_0 */
 #endif
+#ifdef RAD1O
+#define SCU_VAA_ENABLE      (P5_0)  /* GPIO2[9] on P5_0 */
+#endif
+
 
 /* SPI flash */
 #define SCU_SSP0_MISO       (P3_6)
@@ -190,6 +217,18 @@ extern "C"
 #define SCU_RX_AMP          (P2_11) /* GPIO1[11] on P2_11 */
 #define SCU_NO_RX_AMP_PWR   (P2_12) /* GPIO1[12] on P2_12 */
 #endif
+#ifdef RAD1O
+#define SCU_BY_AMP          (P1_7)  /* GPIO1[0] on P1_7 */
+#define SCU_BY_AMP_N        (P2_5)  /* GPIO5[5] on P2_5 */
+#define SCU_TX_RX           (P2_10) /* GPIO0[14] on P2_10 */
+#define SCU_TX_RX_N         (P2_11) /* GPIO1[11] on P2_11 */
+#define SCU_BY_MIX          (P2_12) /* GPIO1[12] on P2_12 */
+#define SCU_BY_MIX_N        (P5_1) /* GPIO2[10] on P5_1 */
+#define SCU_LOW_HIGH_FILT   (P5_2) /* GPIO2[11] on P5_2 */
+#define SCU_LOW_HIGH_FILT_N (P5_3) /* GPIO2[12] on P5_3 */
+#define SCU_TX_AMP          (P5_6) /* GPIO2[15] on P5_6 */
+#define SCU_RX_LNA          (P6_7) /* GPIO5[15] on P6_7 */
+#endif
 
 /* TODO add other Pins */
 #define SCU_PINMUX_GPIO3_8  (P7_0)  /* GPIO3[8] */
@@ -240,7 +279,7 @@ extern const ssp_config_t ssp_config_max5864;
 
 extern max2837_driver_t max2837;
 extern max5864_driver_t max5864;
-extern rffc5071_driver_t rffc5072;
+extern mixer_driver_t mixer;
 extern w25q80bv_driver_t spi_flash;
 extern sgpio_config_t sgpio_config;
 extern rf_path_t rf_path;
@@ -262,7 +301,7 @@ bool sample_rate_frac_set(uint32_t rate_num, uint32_t rate_denom);
 bool sample_rate_set(const uint32_t sampling_rate_hz);
 bool baseband_filter_bandwidth_set(const uint32_t bandwidth_hz);
 
-#ifdef HACKRF_ONE
+#if (defined HACKRF_ONE || defined RAD1O)
 void enable_rf_power(void);
 void disable_rf_power(void);
 #endif
@@ -271,6 +310,7 @@ typedef enum {
 	LED1 = 0,
 	LED2 = 1,
 	LED3 = 2,
+	LED4 = 3,
 } led_t;
 
 void led_on(const led_t led);
diff --git a/firmware/common/max2837.c b/firmware/common/max2837.c
index d99b740f..2e853598 100644
--- a/firmware/common/max2837.c
+++ b/firmware/common/max2837.c
@@ -279,7 +279,7 @@ static const max2837_ft_t max2837_ft[] = {
 	{        0, 0 },
 };
 
-bool max2837_set_lpf_bandwidth(max2837_driver_t* const drv, const uint32_t bandwidth_hz) {
+uint32_t max2837_set_lpf_bandwidth(max2837_driver_t* const drv, const uint32_t bandwidth_hz) {
 	const max2837_ft_t* p = max2837_ft;
 	while( p->bandwidth_hz != 0 ) {
 		if( p->bandwidth_hz >= bandwidth_hz ) {
@@ -291,10 +291,9 @@ bool max2837_set_lpf_bandwidth(max2837_driver_t* const drv, const uint32_t bandw
 	if( p->bandwidth_hz != 0 ) {
 		set_MAX2837_FT(drv, p->ft);
 		max2837_regs_commit(drv);
-		return true;
-	} else {
-		return false;
 	}
+
+	return p->bandwidth_hz;
 }
 
 bool max2837_set_lna_gain(max2837_driver_t* const drv, const uint32_t gain_db) {
diff --git a/firmware/common/max2837.h b/firmware/common/max2837.h
index a9962fad..dcf6829c 100644
--- a/firmware/common/max2837.h
+++ b/firmware/common/max2837.h
@@ -91,7 +91,7 @@ extern void max2837_stop(max2837_driver_t* const drv);
 /* Set frequency in Hz. Frequency setting is a multi-step function
  * where order of register writes matters. */
 extern void max2837_set_frequency(max2837_driver_t* const drv, uint32_t freq);
-bool max2837_set_lpf_bandwidth(max2837_driver_t* const drv, const uint32_t bandwidth_hz);
+uint32_t max2837_set_lpf_bandwidth(max2837_driver_t* const drv, const uint32_t bandwidth_hz);
 bool max2837_set_lna_gain(max2837_driver_t* const drv, const uint32_t gain_db);
 bool max2837_set_vga_gain(max2837_driver_t* const drv, const uint32_t gain_db);
 bool max2837_set_txvga_gain(max2837_driver_t* const drv, const uint32_t gain_db);
diff --git a/firmware/common/max2871.c b/firmware/common/max2871.c
new file mode 100644
index 00000000..ea073307
--- /dev/null
+++ b/firmware/common/max2871.c
@@ -0,0 +1,236 @@
+#include "max2871.h"
+#include "max2871_regs.h"
+
+#if (defined DEBUG)
+#include <stdio.h>
+#define LOG printf
+#else
+#define LOG(x,...)
+#include <libopencm3/lpc43xx/ssp.h>
+#include <libopencm3/lpc43xx/scu.h>
+#include "hackrf_core.h"
+#endif
+
+#include <stdint.h>
+#include <string.h>
+
+static void max2871_spi_write(max2871_driver_t* const drv, uint8_t r, uint32_t v);
+static void max2871_write_registers(max2871_driver_t* const drv);
+static void delay_ms(int ms);
+
+void max2871_setup(max2871_driver_t* const drv)
+{
+	/* Configure GPIO pins. */
+	scu_pinmux(SCU_VCO_CE, SCU_GPIO_FAST);
+	scu_pinmux(SCU_VCO_SCLK, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+	/* Only used for the debug pin config: scu_pinmux(SCU_VCO_SCLK, SCU_GPIO_FAST); */
+	scu_pinmux(SCU_VCO_SDATA, SCU_GPIO_FAST);
+	scu_pinmux(SCU_VCO_LE, SCU_GPIO_FAST);
+	scu_pinmux(SCU_VCO_MUX, SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+	scu_pinmux(SCU_SYNT_RFOUT_EN, SCU_GPIO_FAST);
+
+	/* Set GPIO pins as outputs. */
+	gpio_output(drv->gpio_vco_ce);
+	gpio_output(drv->gpio_vco_sclk);
+	gpio_output(drv->gpio_vco_sdata);
+	gpio_output(drv->gpio_vco_le);
+	gpio_output(drv->gpio_synt_rfout_en);
+
+	/* MUX is an input */
+	gpio_input(drv->gpio_vco_mux);
+
+	/* set to known state */
+	gpio_set(drv->gpio_vco_ce); /* active high */
+	gpio_clear(drv->gpio_vco_sclk);
+	gpio_clear(drv->gpio_vco_sdata);
+	gpio_set(drv->gpio_vco_le); /* active low */
+	gpio_set(drv->gpio_synt_rfout_en); /* active high */
+
+	max2871_regs_init();
+	int i;
+	for(i = 5; i >= 0; i--) {
+		max2871_spi_write(drv, i, max2871_get_register(i));
+		delay_ms(20);
+	}
+
+	max2871_set_INT(1);
+	max2871_set_N(4500);
+	max2871_set_FRAC(0);
+	max2871_set_CPL(0);
+	max2871_set_CPT(0);
+	max2871_set_P(1);
+	max2871_set_M(0);
+	max2871_set_LDS(0);
+	max2871_set_SDN(0);
+	max2871_set_MUX(0x0C);  /* Register 6 readback */
+	max2871_set_DBR(0);
+	max2871_set_RDIV2(0);
+	max2871_set_R(1); /* 40 MHz f_PFD */
+	max2871_set_REG4DB(1);
+	max2871_set_CP(15); /* ?: CP charge pump current 0-15 */
+	max2871_set_LDF(1); /* INT-N */
+	max2871_set_LDP(0); /* ?: Lock-Detect Precision */
+	max2871_set_PDP(1);
+	max2871_set_SHDN(0);
+	max2871_set_TRI(0);
+	max2871_set_RST(0);
+	max2871_set_VCO(0);
+	max2871_set_VAS_SHDN(0);
+	max2871_set_VAS_TEMP(1);
+	max2871_set_CSM(0);
+	max2871_set_MUTEDEL(1);
+	max2871_set_CDM(0);
+	max2871_set_CDIV(0);
+	max2871_set_SDLDO(0);
+	max2871_set_SDDIV(0);
+	max2871_set_SDREF(0);
+	max2871_set_BS(20*40); /* For 40 MHz f_PFD */
+	max2871_set_FB(1); /* Do not put DIVA into the feedback loop */
+	max2871_set_DIVA(0);
+	max2871_set_SDVCO(0);
+	max2871_set_MTLD(1);
+	max2871_set_BDIV(0);
+	max2871_set_RFB_EN(0);
+	max2871_set_BPWR(0);
+	max2871_set_RFA_EN(0);
+	max2871_set_APWR(3);
+	max2871_set_SDPLL(0);
+	max2871_set_F01(1);
+	max2871_set_LD(1);
+	max2871_set_ADCS(0);
+	max2871_set_ADCM(0);
+
+	max2871_write_registers(drv);
+
+	max2871_set_frequency(drv, 3500);
+}
+
+static void delay_ms(int ms)
+{
+	uint32_t i;
+	while(ms--) {
+		for (i = 0; i < 20000; i++) {
+			__asm__("nop");
+		}
+	}
+}
+
+
+static void serial_delay(void)
+{
+	uint32_t i;
+
+	for (i = 0; i < 2; i++)
+		__asm__("nop");
+}
+
+
+/* SPI register write
+ *
+ * Send 32 bits:
+ *  First 29 bits are data
+ *  Last 3 bits are register number */
+static void max2871_spi_write(max2871_driver_t* const drv, uint8_t r, uint32_t v) {
+#if DEBUG
+	LOG("0x%04x -> reg%d\n", v, r);
+#else
+
+	uint32_t bits = 32;
+	uint32_t msb = 1 << (bits -1);
+	uint32_t data = v | r;
+
+	/* make sure everything is starting in the correct state */
+	gpio_set(drv->gpio_vco_le);
+	gpio_clear(drv->gpio_vco_sclk);
+	gpio_clear(drv->gpio_vco_sdata);
+
+	/* start transaction by bringing LE low */
+	gpio_clear(drv->gpio_vco_le);
+
+	while (bits--) {
+		if (data & msb)
+			gpio_set(drv->gpio_vco_sdata);
+		else
+			gpio_clear(drv->gpio_vco_sdata);
+		data <<= 1;
+
+		serial_delay();
+		gpio_set(drv->gpio_vco_sclk);
+
+		serial_delay();
+		gpio_clear(drv->gpio_vco_sclk);
+	}
+
+	gpio_set(drv->gpio_vco_le);
+#endif
+}
+
+static uint32_t max2871_spi_read(max2871_driver_t* const drv)
+{
+	uint32_t bits = 32;
+	uint32_t data = 0;
+
+	max2871_spi_write(drv, 0x06, 0x0);
+
+	serial_delay();
+	gpio_set(drv->gpio_vco_sclk);
+	serial_delay();
+	gpio_clear(drv->gpio_vco_sclk);
+	serial_delay();
+
+	while (bits--) {
+		gpio_set(drv->gpio_vco_sclk);
+		serial_delay();
+
+		gpio_clear(drv->gpio_vco_sclk);
+		serial_delay();
+
+		data <<= 1;
+		data |= gpio_read(drv->gpio_vco_mux) ? 1 : 0;
+	}
+	return data;
+}
+
+static void max2871_write_registers(max2871_driver_t* const drv)
+{
+	int i;
+	for(i = 5; i >= 0; i--) {
+		max2871_spi_write(drv, i, max2871_get_register(i));
+	}
+}
+
+/* Set frequency (MHz). */
+uint64_t max2871_set_frequency(max2871_driver_t* const drv, uint16_t mhz)
+{
+	int n = mhz / 40;
+	int diva = 0;
+
+	while(n * 40 < 3000) {
+		n *= 2;
+		diva += 1;
+	}
+
+	max2871_set_RFA_EN(0);
+	max2871_write_registers(drv);
+
+	max2871_set_N(n);
+	max2871_set_DIVA(diva);
+	max2871_write_registers(drv);
+
+	while(max2871_spi_read(drv) & MAX2871_VASA);
+
+	max2871_set_RFA_EN(1);
+	max2871_write_registers(drv);
+
+	return (mhz/40)*40 * 1000000;
+}
+
+void max2871_enable(max2871_driver_t* const drv)
+{
+	gpio_set(drv->gpio_vco_ce);
+}
+void max2871_disable(max2871_driver_t* const drv)
+{
+	gpio_clear(drv->gpio_vco_ce);
+}
+
diff --git a/firmware/common/max2871.h b/firmware/common/max2871.h
new file mode 100644
index 00000000..f84f5309
--- /dev/null
+++ b/firmware/common/max2871.h
@@ -0,0 +1,21 @@
+#ifndef MAX2871_H
+#define MAX2871_H
+
+#include "gpio.h"
+
+#include <stdint.h>
+
+typedef struct {
+	gpio_t gpio_vco_ce;
+	gpio_t gpio_vco_sclk;
+	gpio_t gpio_vco_sdata;
+	gpio_t gpio_vco_le;
+	gpio_t gpio_synt_rfout_en;
+	gpio_t gpio_vco_mux;
+} max2871_driver_t;
+
+extern void max2871_setup(max2871_driver_t* const drv);
+extern uint64_t max2871_set_frequency(max2871_driver_t* const drv, uint16_t mhz);
+extern void max2871_enable(max2871_driver_t* const drv);
+extern void max2871_disable(max2871_driver_t* const drv);
+#endif
diff --git a/firmware/common/max2871_regs.c b/firmware/common/max2871_regs.c
new file mode 100644
index 00000000..aec781d1
--- /dev/null
+++ b/firmware/common/max2871_regs.c
@@ -0,0 +1,299 @@
+#include "max2871_regs.h"
+#include <stdint.h>
+
+static uint32_t registers[6];
+
+void max2871_regs_init(void)
+{
+    registers[0] = 0x007D0000;
+    registers[1] = 0x2000FFF9;
+    registers[2] = 0x00004042;
+    registers[3] = 0x0000000B;
+    registers[4] = 0x6180B23C;
+    registers[5] = 0x00400005;
+}
+
+uint32_t max2871_get_register(int reg)
+{
+    return registers[reg];
+}
+
+void max2871_set_INT(uint32_t v)
+{
+    registers[0] &= ~(0x1 << 31);
+    registers[0] |= v << 31;
+}
+
+void max2871_set_N(uint32_t v)
+{
+    registers[0] &= ~(0xFFFF << 15);
+    registers[0] |= v << 15;
+}
+
+void max2871_set_FRAC(uint32_t v)
+{
+    registers[0] &= ~(0xFFF << 3);
+    registers[0] |= v << 3;
+}
+
+void max2871_set_CPL(uint32_t v)
+{
+    registers[1] &= ~(0x3 << 29);
+    registers[1] |= v << 29;
+}
+
+void max2871_set_CPT(uint32_t v)
+{
+    registers[1] &= ~(0x3 << 27);
+    registers[1] |= v << 27;
+}
+
+void max2871_set_P(uint32_t v)
+{
+    registers[1] &= ~(0xFFF << 15);
+    registers[1] |= v << 15;
+}
+
+void max2871_set_M(uint32_t v)
+{
+    registers[1] &= ~(0xFFF << 3);
+    registers[1] |= v << 3;
+}
+
+void max2871_set_LDS(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 31);
+    registers[2] |= v << 31;
+}
+
+void max2871_set_SDN(uint32_t v)
+{
+    registers[2] &= ~(0x3 << 29);
+    registers[2] |= v << 29;
+}
+
+void max2871_set_MUX(uint32_t v)
+{
+    registers[2] &= ~(0x7 << 26);
+    registers[5] &= ~(0x1 << 18);
+    registers[2] |= (v & 0x7) << 26;
+    registers[5] |= ((v & 0x8) >> 3) << 18;
+}
+
+void max2871_set_DBR(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 25);
+    registers[2] |= v << 25;
+}
+
+void max2871_set_RDIV2(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 24);
+    registers[2] |= v << 24;
+}
+
+void max2871_set_R(uint32_t v)
+{
+    registers[2] &= ~(0x3FF << 14);
+    registers[2] |= v << 14;
+}
+
+void max2871_set_REG4DB(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 13);
+    registers[2] |= v << 13;
+}
+
+void max2871_set_CP(uint32_t v)
+{
+    registers[2] &= ~(0xF << 9);
+    registers[2] |= v << 9;
+}
+
+void max2871_set_LDF(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 8);
+    registers[2] |= v << 8;
+}
+
+void max2871_set_LDP(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 7);
+    registers[2] |= v << 7;
+}
+
+void max2871_set_PDP(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 6);
+    registers[2] |= v << 6;
+}
+
+void max2871_set_SHDN(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 5);
+    registers[2] |= v << 5;
+}
+
+void max2871_set_TRI(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 4);
+    registers[2] |= v << 4;
+}
+
+void max2871_set_RST(uint32_t v)
+{
+    registers[2] &= ~(0x1 << 3);
+    registers[2] |= v << 3;
+}
+
+void max2871_set_VCO(uint32_t v)
+{
+    registers[3] &= ~(0x3F << 26);
+    registers[3] |= v << 26;
+}
+
+void max2871_set_VAS_SHDN(uint32_t v)
+{
+    registers[3] &= ~(0x1 << 25);
+    registers[3] |= v << 25;
+}
+
+void max2871_set_VAS_TEMP(uint32_t v)
+{
+    registers[3] &= ~(0x1 << 24);
+    registers[3] |= v << 24;
+}
+
+void max2871_set_CSM(uint32_t v)
+{
+    registers[3] &= ~(0x1 << 18);
+    registers[3] |= v << 18;
+}
+
+void max2871_set_MUTEDEL(uint32_t v)
+{
+    registers[3] &= ~(0x1 << 17);
+    registers[3] |= v << 17;
+}
+
+void max2871_set_CDM(uint32_t v)
+{
+    registers[3] &= ~(0x3 << 15);
+    registers[3] |= v << 15;
+}
+
+void max2871_set_CDIV(uint32_t v)
+{
+    registers[3] &= ~(0xFFF << 3);
+    registers[3] |= v << 3;
+}
+
+void max2871_set_SDLDO(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 28);
+    registers[4] |= v << 28;
+}
+
+void max2871_set_SDDIV(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 27);
+    registers[4] |= v << 27;
+}
+
+void max2871_set_SDREF(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 26);
+    registers[4] |= v << 26;
+}
+
+void max2871_set_BS(uint32_t v)
+{
+    registers[4] &= ~(0x3 << 24);
+    registers[4] &= ~(0xFF << 12);
+    registers[4] |= ((v & 0x300) >> 8) << 24;
+    registers[4] |= (v & 0xFF) << 12;
+}
+
+void max2871_set_FB(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 23);
+    registers[4] |= v << 23;
+}
+
+void max2871_set_DIVA(uint32_t v)
+{
+    registers[4] &= ~(0x7 << 20);
+    registers[4] |= v << 20;
+}
+
+void max2871_set_SDVCO(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 11);
+    registers[4] |= v << 11;
+}
+
+void max2871_set_MTLD(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 10);
+    registers[4] |= v << 10;
+}
+
+void max2871_set_BDIV(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 9);
+    registers[4] |= v << 9;
+}
+
+void max2871_set_RFB_EN(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 8);
+    registers[4] |= v << 8;
+}
+
+void max2871_set_BPWR(uint32_t v)
+{
+    registers[4] &= ~(0x3 << 6);
+    registers[4] |= v << 6;
+}
+
+void max2871_set_RFA_EN(uint32_t v)
+{
+    registers[4] &= ~(0x1 << 5);
+    registers[4] |= v << 5;
+}
+
+void max2871_set_APWR(uint32_t v)
+{
+    registers[4] &= ~(0x3 << 3);
+    registers[4] |= v << 3;
+}
+
+void max2871_set_SDPLL(uint32_t v)
+{
+    registers[5] &= ~(0x1 << 25);
+    registers[5] |= v << 25;
+}
+
+void max2871_set_F01(uint32_t v)
+{
+    registers[5] &= ~(0x1 << 24);
+    registers[5] |= v << 24;
+}
+
+void max2871_set_LD(uint32_t v)
+{
+    registers[5] &= ~(0x3 << 22);
+    registers[5] |= v << 22;
+}
+
+void max2871_set_ADCS(uint32_t v)
+{
+    registers[5] &= ~(0x1 << 6);
+    registers[5] |= v << 6;
+}
+
+void max2871_set_ADCM(uint32_t v)
+{
+    registers[5] &= ~(0x7 << 3);
+    registers[5] |= v << 3;
+}
diff --git a/firmware/common/max2871_regs.h b/firmware/common/max2871_regs.h
new file mode 100644
index 00000000..5acd11c4
--- /dev/null
+++ b/firmware/common/max2871_regs.h
@@ -0,0 +1,56 @@
+#ifndef MAX2871_REGS_H
+#define MAX2871_REGS_H
+#include <stdint.h>
+
+#define MAX2871_VASA    (1 << 9)
+
+void max2871_regs_init(void);
+uint32_t max2871_get_register(int reg);
+
+void max2871_set_INT(uint32_t v);
+void max2871_set_N(uint32_t v);
+void max2871_set_FRAC(uint32_t v);
+void max2871_set_CPL(uint32_t v);
+void max2871_set_CPT(uint32_t v);
+void max2871_set_P(uint32_t v);
+void max2871_set_M(uint32_t v);
+void max2871_set_LDS(uint32_t v);
+void max2871_set_SDN(uint32_t v);
+void max2871_set_MUX(uint32_t v);
+void max2871_set_DBR(uint32_t v);
+void max2871_set_RDIV2(uint32_t v);
+void max2871_set_R(uint32_t v);
+void max2871_set_REG4DB(uint32_t v);
+void max2871_set_CP(uint32_t v);
+void max2871_set_LDF(uint32_t v);
+void max2871_set_LDP(uint32_t v);
+void max2871_set_PDP(uint32_t v);
+void max2871_set_SHDN(uint32_t v);
+void max2871_set_TRI(uint32_t v);
+void max2871_set_RST(uint32_t v);
+void max2871_set_VCO(uint32_t v);
+void max2871_set_VAS_SHDN(uint32_t v);
+void max2871_set_VAS_TEMP(uint32_t v);
+void max2871_set_CSM(uint32_t v);
+void max2871_set_MUTEDEL(uint32_t v);
+void max2871_set_CDM(uint32_t v);
+void max2871_set_CDIV(uint32_t v);
+void max2871_set_SDLDO(uint32_t v);
+void max2871_set_SDDIV(uint32_t v);
+void max2871_set_SDREF(uint32_t v);
+void max2871_set_BS(uint32_t v);
+void max2871_set_FB(uint32_t v);
+void max2871_set_DIVA(uint32_t v);
+void max2871_set_SDVCO(uint32_t v);
+void max2871_set_MTLD(uint32_t v);
+void max2871_set_BDIV(uint32_t v);
+void max2871_set_RFB_EN(uint32_t v);
+void max2871_set_BPWR(uint32_t v);
+void max2871_set_RFA_EN(uint32_t v);
+void max2871_set_APWR(uint32_t v);
+void max2871_set_SDPLL(uint32_t v);
+void max2871_set_F01(uint32_t v);
+void max2871_set_LD(uint32_t v);
+void max2871_set_ADCS(uint32_t v);
+void max2871_set_ADCM(uint32_t v);
+#endif
diff --git a/firmware/common/mixer.c b/firmware/common/mixer.c
new file mode 100644
index 00000000..93467327
--- /dev/null
+++ b/firmware/common/mixer.c
@@ -0,0 +1,144 @@
+#include "mixer.h"
+#include "rffc5071.h"
+#include "rffc5071_spi.h"
+#include "max2871.h"
+#include "gpio_lpc.h"
+
+/* RFFC5071 GPIO serial interface PinMux */
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+static struct gpio_t gpio_rffc5072_select	= GPIO(2, 13);
+static struct gpio_t gpio_rffc5072_clock	= GPIO(5,  6);
+static struct gpio_t gpio_rffc5072_data		= GPIO(3,  3);
+static struct gpio_t gpio_rffc5072_reset	= GPIO(2, 14);
+#endif
+#ifdef RAD1O
+static struct gpio_t gpio_vco_ce			= GPIO(2, 13);
+static struct gpio_t gpio_vco_sclk			= GPIO(5,  6);
+static struct gpio_t gpio_vco_sdata			= GPIO(3,  3);
+static struct gpio_t gpio_vco_le			= GPIO(2, 14);
+static struct gpio_t gpio_vco_mux			= GPIO(5, 25);
+static struct gpio_t gpio_synt_rfout_en		= GPIO(3,  5);
+#endif
+
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+const rffc5071_spi_config_t rffc5071_spi_config = {
+	.gpio_select = &gpio_rffc5072_select,
+	.gpio_clock = &gpio_rffc5072_clock,
+	.gpio_data = &gpio_rffc5072_data,
+};
+
+spi_bus_t spi_bus_rffc5071 = {
+	.config = &rffc5071_spi_config,
+	.start = rffc5071_spi_start,
+	.stop = rffc5071_spi_stop,
+	.transfer = rffc5071_spi_transfer,
+	.transfer_gather = rffc5071_spi_transfer_gather,
+};
+
+mixer_driver_t mixer = {
+	.bus = &spi_bus_rffc5071,
+	.gpio_reset = &gpio_rffc5072_reset,
+};
+#endif
+#ifdef RAD1O
+mixer_driver_t mixer = {
+	.gpio_vco_ce = &gpio_vco_ce,
+	.gpio_vco_sclk = &gpio_vco_sclk,
+	.gpio_vco_sdata = &gpio_vco_sdata,
+	.gpio_vco_le = &gpio_vco_le,
+	.gpio_synt_rfout_en = &gpio_synt_rfout_en,
+	.gpio_vco_mux = &gpio_vco_mux,
+};
+#endif
+
+void mixer_bus_setup(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	(void) mixer;
+	spi_bus_start(&spi_bus_rffc5071, &rffc5071_spi_config);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+#endif
+}
+
+void mixer_setup(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_setup(mixer);
+#endif
+#ifdef RAD1O
+	max2871_setup(mixer);
+#endif
+}
+
+uint64_t mixer_set_frequency(mixer_driver_t* const mixer, uint16_t mhz)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	return rffc5071_set_frequency(mixer, mhz);
+#endif
+#ifdef RAD1O
+	return max2871_set_frequency(mixer, mhz);
+#endif
+}
+
+void mixer_tx(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_tx(mixer);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+#endif
+}
+
+void mixer_rx(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_rx(mixer);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+#endif
+}
+
+void mixer_rxtx(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_rxtx(mixer);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+#endif
+}
+
+void mixer_enable(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_enable(mixer);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+#endif
+}
+
+void mixer_disable(mixer_driver_t* const mixer)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_disable(mixer);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+#endif
+}
+
+void mixer_set_gpo(mixer_driver_t* const mixer, uint8_t gpo)
+{
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+	rffc5071_set_gpo(mixer, gpo);
+#endif
+#ifdef RAD1O
+	(void) mixer;
+	(void) gpo;
+#endif
+}
diff --git a/firmware/common/mixer.h b/firmware/common/mixer.h
new file mode 100644
index 00000000..cf46e7c5
--- /dev/null
+++ b/firmware/common/mixer.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Michael Ossmann
+ * Copyright 2014 Jared Boone <jared@sharebrained.com>
+ *
+ * This file is part of HackRF.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __MIXER_H
+#define __MIXER_H
+
+#if (defined JAWBREAKER || defined HACKRF_ONE)
+#include "rffc5071.h"
+typedef rffc5071_driver_t mixer_driver_t;
+#endif
+
+#ifdef RAD1O
+#include "max2871.h"
+typedef max2871_driver_t mixer_driver_t;
+#endif
+
+#include <stdint.h>
+extern void mixer_bus_setup(mixer_driver_t* const mixer);
+extern void mixer_setup(mixer_driver_t* const mixer);
+
+/* Set frequency (MHz). */
+extern uint64_t mixer_set_frequency(mixer_driver_t* const mixer, uint16_t mhz);
+
+/* Set up rx only, tx only, or full duplex. Chip should be disabled
+ * before _tx, _rx, or _rxtx are called. */
+extern void mixer_tx(mixer_driver_t* const mixer);
+extern void mixer_rx(mixer_driver_t* const mixer);
+extern void mixer_rxtx(mixer_driver_t* const mixer);
+extern void mixer_enable(mixer_driver_t* const mixer);
+extern void mixer_disable(mixer_driver_t* const mixer);
+extern void mixer_set_gpo(mixer_driver_t* const drv, uint8_t gpo);
+
+#endif // __MIXER_H
diff --git a/firmware/common/rf_path.c b/firmware/common/rf_path.c
index 78860936..05a627bd 100644
--- a/firmware/common/rf_path.c
+++ b/firmware/common/rf_path.c
@@ -26,12 +26,14 @@
 
 #include <hackrf_core.h>
 
-#include <rffc5071.h>
+#include "hackrf-ui.h"
+
+#include <mixer.h>
 #include <max2837.h>
 #include <max5864.h>
 #include <sgpio.h>
 
-#if (defined JAWBREAKER || defined HACKRF_ONE)
+#if (defined JAWBREAKER || defined HACKRF_ONE || defined RAD1O)
 /*
  * RF switches on Jawbreaker are controlled by General Purpose Outputs (GPO) on
  * the RFFC5072.
@@ -40,6 +42,9 @@
  * SWITCHCTRL_NO_TX_AMP_PWR and SWITCHCTRL_NO_RX_AMP_PWR are not normally used
  * on HackRF One as the amplifier power is instead controlled only by
  * SWITCHCTRL_AMP_BYPASS.
+ *
+ * The rad1o also uses GPIO pins to control the different switches. The amplifiers
+ * are also connected to the LPC.
  */
 #define SWITCHCTRL_NO_TX_AMP_PWR (1 << 0) /* GPO1 turn off TX amp power */
 #define SWITCHCTRL_AMP_BYPASS    (1 << 1) /* GPO2 bypass amp section */
@@ -148,9 +153,73 @@ static void switchctrl_set_hackrf_one(rf_path_t* const rf_path, uint8_t ctrl) {
 		gpio_set(rf_path->gpio_no_rx_amp_pwr);
 
 	if (ctrl & SWITCHCTRL_ANT_PWR) {
-		rffc5071_set_gpo(&rffc5072, 0x00); /* turn on antenna power by clearing GPO1 */
+		mixer_set_gpo(&mixer, 0x00); /* turn on antenna power by clearing GPO1 */
 	} else {
-		rffc5071_set_gpo(&rffc5072, 0x01); /* turn off antenna power by setting GPO1 */
+		mixer_set_gpo(&mixer, 0x01); /* turn off antenna power by setting GPO1 */
+	}
+}
+#endif
+
+#ifdef RAD1O
+static void switchctrl_set_rad1o(rf_path_t* const rf_path, uint8_t ctrl) {
+	if (ctrl & SWITCHCTRL_TX) {
+		gpio_set(rf_path->gpio_tx_rx_n);
+		gpio_clear(rf_path->gpio_tx_rx);
+	} else {
+		gpio_clear(rf_path->gpio_tx_rx_n);
+		gpio_set(rf_path->gpio_tx_rx);
+	}
+
+	if (ctrl & SWITCHCTRL_MIX_BYPASS) {
+		gpio_clear(rf_path->gpio_by_mix);
+		gpio_set(rf_path->gpio_by_mix_n);
+		gpio_clear(rf_path->gpio_mixer_en);
+	} else {
+		gpio_set(rf_path->gpio_by_mix);
+		gpio_clear(rf_path->gpio_by_mix_n);
+		gpio_set(rf_path->gpio_mixer_en);
+	}
+
+	if (ctrl & SWITCHCTRL_HP) {
+		gpio_set(rf_path->gpio_low_high_filt);
+		gpio_clear(rf_path->gpio_low_high_filt_n);
+	} else {
+		gpio_clear(rf_path->gpio_low_high_filt);
+		gpio_set(rf_path->gpio_low_high_filt_n);
+	}
+
+	if (ctrl & SWITCHCTRL_AMP_BYPASS) {
+		gpio_clear(rf_path->gpio_by_amp);
+		gpio_set(rf_path->gpio_by_amp_n);
+
+		gpio_clear(rf_path->gpio_tx_amp);
+		gpio_clear(rf_path->gpio_rx_lna);
+
+	} else if (ctrl & SWITCHCTRL_TX) {
+		gpio_set(rf_path->gpio_by_amp);
+		gpio_clear(rf_path->gpio_by_amp_n);
+
+		gpio_set(rf_path->gpio_tx_amp);
+		gpio_clear(rf_path->gpio_rx_lna);
+
+	} else {
+		gpio_set(rf_path->gpio_by_amp);
+		gpio_clear(rf_path->gpio_by_amp_n);
+
+		gpio_clear(rf_path->gpio_tx_amp);
+		gpio_set(rf_path->gpio_rx_lna);
+	}
+
+	/*
+	 * These normally shouldn't be set post-Jawbreaker, but they can be
+	 * used to explicitly turn off power to the amplifiers while AMP_BYPASS
+	 * is unset:
+	 */
+	if (ctrl & SWITCHCTRL_NO_TX_AMP_PWR) {
+		gpio_clear(rf_path->gpio_tx_amp);
+	}
+	if (ctrl & SWITCHCTRL_NO_RX_AMP_PWR) {
+		gpio_clear(rf_path->gpio_rx_lna);
 	}
 }
 #endif
@@ -158,9 +227,11 @@ static void switchctrl_set_hackrf_one(rf_path_t* const rf_path, uint8_t ctrl) {
 static void switchctrl_set(rf_path_t* const rf_path, const uint8_t gpo) {
 #ifdef JAWBREAKER
 	(void) rf_path; /* silence unused param warning */
-	rffc5071_set_gpo(&rffc5072, gpo);
+	mixer_set_gpo(&mixer, gpo);
 #elif HACKRF_ONE
 	switchctrl_set_hackrf_one(rf_path, gpo);
+#elif RAD1O
+	switchctrl_set_rad1o(rf_path, gpo);
 #else
 	(void)gpo;
 #endif
@@ -201,6 +272,41 @@ void rf_path_pin_setup(rf_path_t* const rf_path) {
 	gpio_output(rf_path->gpio_mix_bypass);
 	gpio_output(rf_path->gpio_rx);
 
+	/*
+	 * Safe (initial) switch settings turn off both amplifiers and antenna port
+	 * power and enable both amp bypass and mixer bypass.
+	 */
+	switchctrl_set(rf_path, SWITCHCTRL_AMP_BYPASS | SWITCHCTRL_MIX_BYPASS);
+#elif RAD1O
+	/* Configure RF switch control signals */
+	scu_pinmux(SCU_BY_AMP,         SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_BY_AMP_N,       SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+	scu_pinmux(SCU_TX_RX,          SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_TX_RX_N,        SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_BY_MIX,         SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_BY_MIX_N,       SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_LOW_HIGH_FILT,  SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_LOW_HIGH_FILT_N,SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_TX_AMP,         SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+	scu_pinmux(SCU_RX_LNA,         SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+	scu_pinmux(SCU_MIXER_EN,       SCU_GPIO_FAST | SCU_CONF_FUNCTION4);
+
+	/* Configure RF power supply (VAA) switch */
+	scu_pinmux(SCU_VAA_ENABLE,  SCU_GPIO_FAST | SCU_CONF_FUNCTION0);
+
+	/* Configure RF switch control signals as outputs */
+	gpio_output(rf_path->gpio_tx_rx_n);
+	gpio_output(rf_path->gpio_tx_rx);
+	gpio_output(rf_path->gpio_by_mix);
+	gpio_output(rf_path->gpio_by_mix_n);
+	gpio_output(rf_path->gpio_by_amp);
+	gpio_output(rf_path->gpio_by_amp_n);
+	gpio_output(rf_path->gpio_mixer_en);
+	gpio_output(rf_path->gpio_low_high_filt);
+	gpio_output(rf_path->gpio_low_high_filt_n);
+	gpio_output(rf_path->gpio_tx_amp);
+	gpio_output(rf_path->gpio_rx_lna);
+
 	/*
 	 * Safe (initial) switch settings turn off both amplifiers and antenna port
 	 * power and enable both amp bypass and mixer bypass.
@@ -220,7 +326,7 @@ void rf_path_init(rf_path_t* const rf_path) {
 	max2837_setup(&max2837);
 	max2837_start(&max2837);
 	
-	rffc5071_setup(&rffc5072);
+	mixer_setup(&mixer);
 	switchctrl_set(rf_path, switchctrl);
 }
 
@@ -234,11 +340,11 @@ void rf_path_set_direction(rf_path_t* const rf_path, const rf_path_direction_t d
 			/* TX amplifier is in path, be sure to enable TX amplifier. */
 			rf_path->switchctrl &= ~SWITCHCTRL_NO_TX_AMP_PWR;
 		}
-		rffc5071_tx(&rffc5072);
+		mixer_tx(&mixer);
 		if( rf_path->switchctrl & SWITCHCTRL_MIX_BYPASS ) {
-			rffc5071_disable(&rffc5072);
+			mixer_disable(&mixer);
 		} else {
-			rffc5071_enable(&rffc5072);
+			mixer_enable(&mixer);
 		}
 		ssp1_set_mode_max5864();
 		max5864_tx(&max5864);
@@ -253,11 +359,11 @@ void rf_path_set_direction(rf_path_t* const rf_path, const rf_path_direction_t d
 			/* RX amplifier is in path, be sure to enable RX amplifier. */
 			rf_path->switchctrl &= ~SWITCHCTRL_NO_RX_AMP_PWR;
 		}
-		rffc5071_rx(&rffc5072);
+		mixer_rx(&mixer);
 		if( rf_path->switchctrl & SWITCHCTRL_MIX_BYPASS ) {
-			rffc5071_disable(&rffc5072);
+			mixer_disable(&mixer);
 		} else {
-			rffc5071_enable(&rffc5072);
+			mixer_enable(&mixer);
 		}
 		ssp1_set_mode_max5864();
 		max5864_rx(&max5864);
@@ -274,7 +380,7 @@ void rf_path_set_direction(rf_path_t* const rf_path, const rf_path_direction_t d
 		rf_path_set_lna(rf_path, 0);
 		/* Set RF path to receive direction when "off" */
 		rf_path->switchctrl &= ~SWITCHCTRL_TX;
-		rffc5071_disable(&rffc5072);
+		mixer_disable(&mixer);
 		ssp1_set_mode_max5864();
 		max5864_standby(&max5864);
 		ssp1_set_mode_max2837();
@@ -284,6 +390,8 @@ void rf_path_set_direction(rf_path_t* const rf_path, const rf_path_direction_t d
 	}
 
 	switchctrl_set(rf_path, rf_path->switchctrl);
+
+	hackrf_ui_setDirection(direction);
 }
 
 void rf_path_set_filter(rf_path_t* const rf_path, const rf_path_filter_t filter) {
@@ -291,18 +399,18 @@ void rf_path_set_filter(rf_path_t* const rf_path, const rf_path_filter_t filter)
 	default:
 	case RF_PATH_FILTER_BYPASS:
 		rf_path->switchctrl |= SWITCHCTRL_MIX_BYPASS;
-		rffc5071_disable(&rffc5072);
+		mixer_disable(&mixer);
 		break;
 		
 	case RF_PATH_FILTER_LOW_PASS:
 		rf_path->switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS);
-		rffc5071_enable(&rffc5072);
+		mixer_enable(&mixer);
 		break;
 		
 	case RF_PATH_FILTER_HIGH_PASS:
 		rf_path->switchctrl &= ~SWITCHCTRL_MIX_BYPASS;
 		rf_path->switchctrl |= SWITCHCTRL_HP;
-		rffc5071_enable(&rffc5072);
+		mixer_enable(&mixer);
 		break;
 	}
 
@@ -326,6 +434,8 @@ void rf_path_set_lna(rf_path_t* const rf_path, const uint_fast8_t enable) {
 	}
 	
 	switchctrl_set(rf_path, rf_path->switchctrl);
+
+	hackrf_ui_setLNAPower(enable);
 }
 
 /* antenna port power control */
diff --git a/firmware/common/rf_path.h b/firmware/common/rf_path.h
index 205d3fdd..e12a8c10 100644
--- a/firmware/common/rf_path.h
+++ b/firmware/common/rf_path.h
@@ -56,6 +56,19 @@ typedef struct rf_path_t {
 	gpio_t gpio_rx_amp;
 	gpio_t gpio_no_rx_amp_pwr;
 #endif
+#ifdef RAD1O
+	gpio_t gpio_tx_rx_n;
+	gpio_t gpio_tx_rx;
+	gpio_t gpio_by_mix;
+	gpio_t gpio_by_mix_n;
+	gpio_t gpio_by_amp;
+	gpio_t gpio_by_amp_n;
+	gpio_t gpio_mixer_en;
+	gpio_t gpio_low_high_filt;
+	gpio_t gpio_low_high_filt_n;
+	gpio_t gpio_tx_amp;
+	gpio_t gpio_rx_lna;
+#endif
 } rf_path_t;
 
 void rf_path_pin_setup(rf_path_t* const rf_path);
diff --git a/firmware/common/sgpio.c b/firmware/common/sgpio.c
index 075b6eaf..6180ad53 100644
--- a/firmware/common/sgpio.c
+++ b/firmware/common/sgpio.c
@@ -27,6 +27,10 @@
 
 #include <sgpio.h>
 
+#ifdef RAD1O
+static void update_q_invert(sgpio_config_t* const config);
+#endif
+
 void sgpio_configure_pin_functions(sgpio_config_t* const config) {
 	scu_pinmux(SCU_PINMUX_SGPIO0, SCU_GPIO_FAST | SCU_CONF_FUNCTION3);
 	scu_pinmux(SCU_PINMUX_SGPIO1, SCU_GPIO_FAST | SCU_CONF_FUNCTION3);
@@ -88,6 +92,12 @@ void sgpio_configure(
         | (1L << 10)	// disable codec data stream during configuration (Output SGPIO10 High)
 		;
 
+#ifdef RAD1O
+	/* The data direction might have changed. Check if we need to
+	 * adjust the q inversion. */
+	update_q_invert(config);
+#endif
+
 	// Enable SGPIO pin outputs.
 	const uint_fast16_t sgpio_gpio_data_direction =
 		(direction == SGPIO_DIRECTION_TX)
@@ -264,6 +274,48 @@ bool sgpio_cpld_stream_rx_set_decimation(sgpio_config_t* const config, const uin
 	return (skip_n < 8);
 }
 
+#ifdef RAD1O
+/* The rad1o hardware has a bug which makes it
+ * necessary to also switch between the two options based
+ * on TX or RX mode.
+ *
+ * We use the state of the pin to determine which way we
+ * have to go.
+ *
+ * As TX/RX can change without sgpio_cpld_stream_rx_set_q_invert
+ * being called, we store a local copy of its parameter. */
+static bool sgpio_invert = false;
+
+/* Called when TX/RX changes od sgpio_cpld_stream_rx_set_q_invert
+ * gets called. */
+static void update_q_invert(sgpio_config_t* const config) {
+	/* 1=Output SGPIO11 High(TX mode), 0=Output SGPIO11 Low(RX mode) */
+	bool tx_mode = (SGPIO_GPIO_OUTREG & (1 << 11)) > 0;
+
+	/* 0.13: P1_18 */
+	if( !sgpio_invert & !tx_mode) {
+		gpio_write(config->gpio_rx_q_invert, 1);
+	} else if( !sgpio_invert & tx_mode) {
+		gpio_write(config->gpio_rx_q_invert, 0);
+	} else if( sgpio_invert & !tx_mode) {
+		gpio_write(config->gpio_rx_q_invert, 0);
+	} else if( sgpio_invert & tx_mode) {
+		gpio_write(config->gpio_rx_q_invert, 1);
+	}
+}
+
+void sgpio_cpld_stream_rx_set_q_invert(sgpio_config_t* const config, const uint_fast8_t invert) {
+	if( invert ) {
+		sgpio_invert = true;
+	} else {
+		sgpio_invert = false;
+	}
+
+	update_q_invert(config);
+}
+
+#else
 void sgpio_cpld_stream_rx_set_q_invert(sgpio_config_t* const config, const uint_fast8_t invert) {
 	gpio_write(config->gpio_rx_q_invert, invert);
 }
+#endif
diff --git a/firmware/common/si5351c.c b/firmware/common/si5351c.c
index 36730930..89932191 100644
--- a/firmware/common/si5351c.c
+++ b/firmware/common/si5351c.c
@@ -243,10 +243,42 @@ void si5351c_configure_clock_control(si5351c_driver_t* const drv, const enum pll
 }
 #endif
 
-/* Enable CLK outputs 0, 1, 2, 3, 4, 5, 7 only. */
+#ifdef RAD1O
+void si5351c_configure_clock_control(si5351c_driver_t* const drv, const enum pll_sources source)
+{
+	(void) source;
+	uint8_t pll;
+
+	/* PLLA on XTAL */
+	pll = SI5351C_CLK_PLL_SRC_A;
+
+	/* Clock to CPU is deactivated as it is not used and creates noise */
+	/* External clock output is deactivated as it is not used and creates noise */
+	uint8_t data[] = {16
+	,SI5351C_CLK_FRAC_MODE | SI5351C_CLK_PLL_SRC(pll) | SI5351C_CLK_SRC(SI5351C_CLK_SRC_MULTISYNTH_SELF) | SI5351C_CLK_IDRV(SI5351C_CLK_IDRV_2MA)
+	,SI5351C_CLK_INT_MODE | SI5351C_CLK_PLL_SRC(pll) | SI5351C_CLK_SRC(SI5351C_CLK_SRC_MULTISYNTH_0_4) | SI5351C_CLK_IDRV(SI5351C_CLK_IDRV_2MA)
+	,SI5351C_CLK_INT_MODE | SI5351C_CLK_PLL_SRC(pll) | SI5351C_CLK_SRC(SI5351C_CLK_SRC_MULTISYNTH_0_4) | SI5351C_CLK_IDRV(SI5351C_CLK_IDRV_2MA)
+	,SI5351C_CLK_POWERDOWN | SI5351C_CLK_INT_MODE /*not connected, but: plla int mode*/
+	,SI5351C_CLK_INT_MODE | SI5351C_CLK_PLL_SRC(pll) | SI5351C_CLK_SRC(SI5351C_CLK_SRC_MULTISYNTH_SELF) | SI5351C_CLK_IDRV(SI5351C_CLK_IDRV_6MA)
+	,SI5351C_CLK_INT_MODE | SI5351C_CLK_PLL_SRC(pll) | SI5351C_CLK_SRC(SI5351C_CLK_SRC_MULTISYNTH_SELF) | SI5351C_CLK_IDRV(SI5351C_CLK_IDRV_4MA)
+	,SI5351C_CLK_POWERDOWN | SI5351C_CLK_INT_MODE /*not connected, but: plla int mode*/
+	,SI5351C_CLK_POWERDOWN | SI5351C_CLK_INT_MODE /*not connected, but: plla int mode*/
+	 };
+	si5351c_write(drv, data, sizeof(data));
+}
+#endif
+
  void si5351c_enable_clock_outputs(si5351c_driver_t* const drv)
  {
+#ifdef RAD1O
+	/* Enable CLK outputs 0, 1, 2, 4, 5 only. */
+	/* 7: Clock to CPU is deactivated as it is not used and creates noise */
+	/* 3: External clock output is deactivated as it is not used and creates noise */
+	uint8_t data[] = { 3, ~((1 << 0) | (1 << 1) | (1 << 2) | (1 << 4) | (1 << 5))};
+#else
+	/* Enable CLK outputs 0, 1, 2, 3, 4, 5, 7 only. */
 	uint8_t data[] = { 3, 0x40 };
+#endif
  	si5351c_write(drv, data, sizeof(data));
  }
 
diff --git a/firmware/common/tuning.c b/firmware/common/tuning.c
index 166f910c..b33b90d3 100644
--- a/firmware/common/tuning.c
+++ b/firmware/common/tuning.c
@@ -22,8 +22,10 @@
 
 #include "tuning.h"
 
+#include "hackrf-ui.h"
+
 #include <hackrf_core.h>
-#include <rffc5071.h>
+#include <mixer.h>
 #include <max2837.h>
 #include <sgpio.h>
 
@@ -54,9 +56,9 @@ uint64_t freq_cache = 100000000;
 bool set_freq(const uint64_t freq)
 {
 	bool success;
-	uint32_t RFFC5071_freq_mhz;
+	uint32_t mixer_freq_mhz;
 	uint32_t MAX2837_freq_hz;
-	uint64_t real_RFFC5071_freq_hz;
+	uint64_t real_mixer_freq_hz;
 
 	const uint32_t freq_mhz = freq / 1000000;
 	const uint32_t freq_hz = freq % 1000000;
@@ -68,18 +70,22 @@ bool set_freq(const uint64_t freq)
 	if(freq_mhz < MAX_LP_FREQ_MHZ)
 	{
 		rf_path_set_filter(&rf_path, RF_PATH_FILTER_LOW_PASS);
+#ifdef RAD1O
+		max2837_freq_nominal_hz = 2300000000;
+#else
 		/* IF is graduated from 2650 MHz to 2343 MHz */
 		max2837_freq_nominal_hz = 2650000000 - (freq / 7);
-		RFFC5071_freq_mhz = (max2837_freq_nominal_hz / FREQ_ONE_MHZ) + freq_mhz;
+#endif
+		mixer_freq_mhz = (max2837_freq_nominal_hz / FREQ_ONE_MHZ) + freq_mhz;
 		/* Set Freq and read real freq */
-		real_RFFC5071_freq_hz = rffc5071_set_frequency(&rffc5072, RFFC5071_freq_mhz);
-		max2837_set_frequency(&max2837, real_RFFC5071_freq_hz - freq);
+		real_mixer_freq_hz = mixer_set_frequency(&mixer, mixer_freq_mhz);
+		max2837_set_frequency(&max2837, real_mixer_freq_hz - freq);
 		sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 1);
 	}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
 	{
 		rf_path_set_filter(&rf_path, RF_PATH_FILTER_BYPASS);
 		MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
-		/* RFFC5071_freq_mhz <= not used in Bypass mode */
+		/* mixer_freq_mhz <= not used in Bypass mode */
 		max2837_set_frequency(&max2837, MAX2837_freq_hz);
 		sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
 	}else if(  (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz <= MAX_HP_FREQ_MHZ) )
@@ -95,10 +101,10 @@ bool set_freq(const uint64_t freq)
 			max2837_freq_nominal_hz = 2500000000 + ((freq - 5100000000) / 9);
 		}
 		rf_path_set_filter(&rf_path, RF_PATH_FILTER_HIGH_PASS);
-		RFFC5071_freq_mhz = freq_mhz - (max2837_freq_nominal_hz / FREQ_ONE_MHZ);
+		mixer_freq_mhz = freq_mhz - (max2837_freq_nominal_hz / FREQ_ONE_MHZ);
 		/* Set Freq and read real freq */
-		real_RFFC5071_freq_hz = rffc5071_set_frequency(&rffc5072, RFFC5071_freq_mhz);
-		max2837_set_frequency(&max2837, freq - real_RFFC5071_freq_hz);
+		real_mixer_freq_hz = mixer_set_frequency(&mixer, mixer_freq_mhz);
+		max2837_set_frequency(&max2837, freq - real_mixer_freq_hz);
 		sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
 	}else
 	{
@@ -108,6 +114,7 @@ bool set_freq(const uint64_t freq)
 	max2837_set_mode(&max2837, prior_max2837_mode);
 	if( success ) {
 		freq_cache = freq;
+		hackrf_ui_setFrequency(freq);
 	}
 	return success;
 }
@@ -137,7 +144,7 @@ bool set_freq_explicit(const uint64_t if_freq_hz, const uint64_t lo_freq_hz,
 		sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
 	}
 	if (path != RF_PATH_FILTER_BYPASS) {
-		(void)rffc5071_set_frequency(&rffc5072, lo_freq_hz / FREQ_ONE_MHZ);
+		(void)mixer_set_frequency(&mixer, lo_freq_hz / FREQ_ONE_MHZ);
 	}
 	return true;
 }
diff --git a/firmware/common/usb.c b/firmware/common/usb.c
index f77bc28b..f8e4bd8c 100644
--- a/firmware/common/usb.c
+++ b/firmware/common/usb.c
@@ -72,7 +72,7 @@ void usb_peripheral_reset() {
 	while( (RESET_ACTIVE_STATUS0 & RESET_CTRL0_USB0_RST) == 0 );
 }
 
-static void usb_phy_enable() {
+void usb_phy_enable() {
 	CREG_CREG0 &= ~CREG_CREG0_USB0PHY;
 }
 
diff --git a/firmware/common/usb.h b/firmware/common/usb.h
index a6fa6a92..aa21beb2 100644
--- a/firmware/common/usb.h
+++ b/firmware/common/usb.h
@@ -29,6 +29,7 @@
 #include "usb_type.h"
 
 void usb_peripheral_reset();
+void usb_phy_enable();
 
 void usb_device_init(
 	const uint_fast8_t device_ordinal,
diff --git a/firmware/common/w25q80bv.c b/firmware/common/w25q80bv.c
index 999c3d52..73dd0224 100644
--- a/firmware/common/w25q80bv.c
+++ b/firmware/common/w25q80bv.c
@@ -61,11 +61,10 @@ void w25q80bv_setup(w25q80bv_driver_t* const drv)
 
 	drv->target_init(drv);
 
-	device_id = 0;
-	while(device_id != W25Q80BV_DEVICE_ID_RES)
-	{
+	do {
 		device_id = w25q80bv_get_device_id(drv);
-	}
+	} while(device_id != W25Q80BV_DEVICE_ID_RES &&
+		device_id != W25Q16DV_DEVICE_ID_RES);
 }
 
 uint8_t w25q80bv_get_status(w25q80bv_driver_t* const drv)
@@ -117,11 +116,10 @@ void w25q80bv_chip_erase(w25q80bv_driver_t* const drv)
 {
 	uint8_t device_id;
 
-	device_id = 0;
-	while(device_id != W25Q80BV_DEVICE_ID_RES)
-	{
+	do {
 		device_id = w25q80bv_get_device_id(drv);
-	}
+	} while(device_id != W25Q80BV_DEVICE_ID_RES &&
+		device_id != W25Q16DV_DEVICE_ID_RES);
 
 	w25q80bv_write_enable(drv);
 	w25q80bv_wait_while_busy(drv);
@@ -165,11 +163,10 @@ void w25q80bv_program(w25q80bv_driver_t* const drv, uint32_t addr, uint32_t len,
 	uint16_t first_block_len;
 	uint8_t device_id;
 
-	device_id = 0;
-	while(device_id != W25Q80BV_DEVICE_ID_RES)
-	{
+	do {
 		device_id = w25q80bv_get_device_id(drv);
-	}	
+	} while(device_id != W25Q80BV_DEVICE_ID_RES &&
+		device_id != W25Q16DV_DEVICE_ID_RES);
 	
 	/* do nothing if we would overflow the flash */
 	if ((len > drv->num_bytes) || (addr > drv->num_bytes)
diff --git a/firmware/common/w25q80bv.h b/firmware/common/w25q80bv.h
index 9d244c4d..494332a1 100644
--- a/firmware/common/w25q80bv.h
+++ b/firmware/common/w25q80bv.h
@@ -27,6 +27,8 @@
 #include <stdint.h>
 #include <stddef.h>
 
+#define W25Q80BV_DEVICE_ID_RES  0x13 /* Expected device_id for W25Q80BV */
+#define W25Q16DV_DEVICE_ID_RES  0x14 /* Expected device_id for W25Q16DV */
 #include "spi_bus.h"
 #include "gpio.h"
 
diff --git a/firmware/hackrf-common.cmake b/firmware/hackrf-common.cmake
index a5a9f06a..177da4d3 100644
--- a/firmware/hackrf-common.cmake
+++ b/firmware/hackrf-common.cmake
@@ -104,10 +104,9 @@ macro(DeclareTargets)
 		${PATH_HACKRF_FIRMWARE_COMMON}/max2837_target.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/max5864.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/max5864_target.c
-		${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071.c
+		${PATH_HACKRF_FIRMWARE_COMMON}/mixer.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/i2c_bus.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/i2c_lpc.c
-		${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071_spi.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/w25q80bv.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/w25q80bv_target.c
 		${PATH_HACKRF_FIRMWARE_COMMON}/spi_bus.c
@@ -115,6 +114,20 @@ macro(DeclareTargets)
 		${PATH_HACKRF_FIRMWARE_COMMON}/gpio_lpc.c
 	)
 
+	if(BOARD STREQUAL "RAD1O")
+		SET(SRC_M4
+			${SRC_M4}
+			${PATH_HACKRF_FIRMWARE_COMMON}/max2871.c
+			${PATH_HACKRF_FIRMWARE_COMMON}/max2871_regs.c
+		)
+	else()
+		SET(SRC_M4
+			${SRC_M4}
+			${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071.c
+			${PATH_HACKRF_FIRMWARE_COMMON}/rffc5071_spi.c
+		)
+	endif()
+
 	configure_file(
 		${PATH_HACKRF_FIRMWARE_COMMON}/m0_bin.s.cmake
 		m0_bin.s
diff --git a/firmware/hackrf_usb/hackrf_usb.c b/firmware/hackrf_usb/hackrf_usb.c
index 2e7cf8f9..51d8a088 100644
--- a/firmware/hackrf_usb/hackrf_usb.c
+++ b/firmware/hackrf_usb/hackrf_usb.c
@@ -46,6 +46,8 @@
 #include "usb_api_transceiver.h"
 #include "usb_bulk_buffer.h"
  
+#include "hackrf-ui.h"
+
 static const usb_request_handler_fn vendor_request_handler[] = {
 	NULL,
 	usb_vendor_request_set_transceiver_mode,
@@ -55,8 +57,13 @@ static const usb_request_handler_fn vendor_request_handler[] = {
 	usb_vendor_request_read_si5351c,
 	usb_vendor_request_set_sample_rate_frac,
 	usb_vendor_request_set_baseband_filter_bandwidth,
+#ifdef RAD1O
+	NULL, // write_rffc5071 not used
+	NULL, // read_rffc5071 not used
+#else
 	usb_vendor_request_write_rffc5071,
 	usb_vendor_request_read_rffc5071,
+#endif
 	usb_vendor_request_erase_spiflash,
 	usb_vendor_request_write_spiflash,
 	usb_vendor_request_read_spiflash,
@@ -154,8 +161,11 @@ void usb_set_descriptor_by_serial_number(void)
 int main(void) {
 	pin_setup();
 	enable_1v8_power();
-#ifdef HACKRF_ONE
+#if (defined HACKRF_ONE || defined RAD1O)
 	enable_rf_power();
+
+	/* Let the voltage stabilize */
+	delay(1000000);
 #endif
 	cpu_clock_init();
 
@@ -176,6 +186,8 @@ int main(void) {
 	
 	nvic_set_priority(NVIC_USB0_IRQ, 255);
 
+	hackrf_ui_init();
+
 	usb_run(&usb_device);
 	
 	rf_path_init(&rf_path);
diff --git a/firmware/hackrf_usb/usb_api_register.c b/firmware/hackrf_usb/usb_api_register.c
index 373354d9..0fd8bfc2 100644
--- a/firmware/hackrf_usb/usb_api_register.c
+++ b/firmware/hackrf_usb/usb_api_register.c
@@ -107,6 +107,7 @@ usb_request_status_t usb_vendor_request_read_si5351c(
 	}
 }
 
+#ifndef RAD1O
 usb_request_status_t usb_vendor_request_write_rffc5071(
 	usb_endpoint_t* const endpoint,
 	const usb_transfer_stage_t stage
@@ -115,7 +116,7 @@ usb_request_status_t usb_vendor_request_write_rffc5071(
 	{
 		if( endpoint->setup.index < RFFC5071_NUM_REGS ) 
 		{
-			rffc5071_reg_write(&rffc5072, endpoint->setup.index, endpoint->setup.value);
+			rffc5071_reg_write(&mixer, endpoint->setup.index, endpoint->setup.value);
 			usb_transfer_schedule_ack(endpoint->in);
 			return USB_REQUEST_STATUS_OK;
 		}
@@ -134,7 +135,7 @@ usb_request_status_t usb_vendor_request_read_rffc5071(
 	{
 		if( endpoint->setup.index < RFFC5071_NUM_REGS ) 
 		{
-			value = rffc5071_reg_read(&rffc5072, endpoint->setup.index);
+			value = rffc5071_reg_read(&mixer, endpoint->setup.index);
 			endpoint->buffer[0] = value & 0xff;
 			endpoint->buffer[1] = value >> 8;
 			usb_transfer_schedule_block(endpoint->in, &endpoint->buffer, 2,
@@ -147,3 +148,4 @@ usb_request_status_t usb_vendor_request_read_rffc5071(
 		return USB_REQUEST_STATUS_OK;
 	}
 }
+#endif
diff --git a/firmware/hackrf_usb/usb_api_transceiver.c b/firmware/hackrf_usb/usb_api_transceiver.c
index 19178473..4532d28a 100644
--- a/firmware/hackrf_usb/usb_api_transceiver.c
+++ b/firmware/hackrf_usb/usb_api_transceiver.c
@@ -22,6 +22,7 @@
 
 #include "usb_api_transceiver.h"
 
+#include "hackrf-ui.h"
 #include <libopencm3/cm3/vector.h>
 #include <libopencm3/lpc43xx/m4/nvic.h>
 #include "sgpio_isr.h"
@@ -152,6 +153,7 @@ usb_request_status_t usb_vendor_request_set_lna_gain(
 	if( stage == USB_TRANSFER_STAGE_SETUP ) {
 			const uint8_t value = max2837_set_lna_gain(&max2837, endpoint->setup.index);
 			endpoint->buffer[0] = value;
+			if(value) hackrf_ui_setBBLNAGain(endpoint->setup.index);
 			usb_transfer_schedule_block(endpoint->in, &endpoint->buffer, 1,
 						    NULL, NULL);
 			usb_transfer_schedule_ack(endpoint->out);
@@ -166,6 +168,7 @@ usb_request_status_t usb_vendor_request_set_vga_gain(
 	if( stage == USB_TRANSFER_STAGE_SETUP ) {
 			const uint8_t value = max2837_set_vga_gain(&max2837, endpoint->setup.index);
 			endpoint->buffer[0] = value;
+			if(value) hackrf_ui_setBBVGAGain(endpoint->setup.index);
 			usb_transfer_schedule_block(endpoint->in, &endpoint->buffer, 1,
 						    NULL, NULL);
 			usb_transfer_schedule_ack(endpoint->out);
@@ -180,6 +183,7 @@ usb_request_status_t usb_vendor_request_set_txvga_gain(
 	if( stage == USB_TRANSFER_STAGE_SETUP ) {
 			const uint8_t value = max2837_set_txvga_gain(&max2837, endpoint->setup.index);
 			endpoint->buffer[0] = value;
+			if(value) hackrf_ui_setBBTXVGAGain(endpoint->setup.index);
 			usb_transfer_schedule_block(endpoint->in, &endpoint->buffer, 1,
 						    NULL, NULL);
 			usb_transfer_schedule_ack(endpoint->out);
diff --git a/firmware/hackrf_usb/usb_descriptor.c b/firmware/hackrf_usb/usb_descriptor.c
index 6f6560b1..f11ce887 100644
--- a/firmware/hackrf_usb/usb_descriptor.c
+++ b/firmware/hackrf_usb/usb_descriptor.c
@@ -30,6 +30,8 @@
 #define USB_PRODUCT_ID			(0x6089)
 #elif JAWBREAKER
 #define USB_PRODUCT_ID			(0x604B)
+#elif RAD1O
+#define USB_PRODUCT_ID			(0xCC15)
 #else
 #define USB_PRODUCT_ID			(0xFFFF)
 #endif
diff --git a/firmware/mixertx/mixertx.c b/firmware/mixertx/mixertx.c
index a6c2024a..fc537c66 100644
--- a/firmware/mixertx/mixertx.c
+++ b/firmware/mixertx/mixertx.c
@@ -36,7 +36,7 @@ int main(void)
 
 	ssp1_set_mode_max2837();
 	max2837_setup(&max2837);
-	rffc5071_setup(&rffc5072);
+	mixer_setup(&mixer);
 	led_on(LED2);
 
 	max2837_set_frequency(&max2837, freq);