diff --git a/docs/source/faq.rst b/docs/source/faq.rst index 1f9190de..a96f329e 100644 --- a/docs/source/faq.rst +++ b/docs/source/faq.rst @@ -39,11 +39,3 @@ Start by reading :ref:`our FAQ Response on the DC Spike `. After that, #. Avoid it. The best way to handle DC offset for most applications is to use offset tuning; instead of tuning to your exact frequency of interest, tune to a nearby frequency so that the entire signal you are interested in is shifted away from 0 Hz but still within the received bandwidth. If your algorithm works best with your signal centered at 0 Hz (many do), you can shift the frequency in the digital domain, moving your signal of interest to 0 Hz and your DC offset away from 0 Hz. HackRF's high maximum sampling rate can be a big help as it allows you to use offset tuning even for relatively wideband signals. #. Correct it. There are various ways of removing the DC offset in software. However, these techniques may degrade parts of the signal that are close to 0 Hz. It may look better, but that doesn't necessarily mean that it is better from the standpoint of a demodulator algorithm, for example. Still, correcting the DC offset is often a good choice. - ----- - - -Why are the LEDs on HackRF different colours? -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - -Each LED is a single color. There are no multi-colored LEDs on HackRF One. Adjacent LEDs are different colors in order to make them easier to distinguish from one another. The colors do not mean anything. diff --git a/docs/source/leds.rst b/docs/source/leds.rst index 519e0abd..fa598d41 100644 --- a/docs/source/leds.rst +++ b/docs/source/leds.rst @@ -2,7 +2,8 @@ LEDs ==== - When HackRF One is plugged in to a USB host, four LEDs should turn on: 3V3, 1V8, RF, and USB. The 3V3 LED indicates that the primary internal power supply is working properly. The 1V8 and RF LEDs indicate that firmware is running and has switched on additional internal power supplies. The USB LED indicates that the HackRF One is communicating with the host over USB. The RX and TX LEDs indicate that a receive or transmit operation is currently in progress. + +Each LED is a single color. There are no multi-colored LEDs on HackRF One. Adjacent LEDs are different colors in order to make them easier to distinguish from one another. The colors do not mean anything.