This has to be muted, otherwise you will see signal distortions making your transmissions unreadable by receivers and it might even spuriously key your transmitter. IMPORTANT: The Microphone in the Playback settings is not really a microphone but the loopback from input to output on DigiLink Nano's audio codec (it feeds back the the signal received by the radio back into the radio's microphone input). Use the left Speaker channel to change the output volume to your radio, or set it to a convenient level for your radio and use your radio's control's to fine-adjust the level as needed (this depends on your radio, as for myself I use full volume for the KX2/KX3 and fine-adjust with the MIC button but for my FT-897 I set radio to a 50 and fine-adjust in Raspbian's Audio settings as the radio's sensitivity setting is hidden in its menu and not conveniently availably on a know as on the KX2/KX3). Maybe you feel like you need practice compiling software. ![]() ![]() To do this, the source code repositories. If you would rather like to use your radio's VOX control, set the right channel's volume to zero. Why, one might ask, would one want to run fldigi on a raspberry pi Perhaps you want to get familiar with Linux before sacrificing a larger system to it. On Raspbian it is easiest to auto-install the build dependencies for fldigi using the apt-get build-dep command. Set the right channel to full volume since it is used for DigiLink Nano's VOX circuit. For this board you select 'BCM 23' and select the corresponding ' 1 (on)' check box. ![]() It has an LED indicator on the board to show when PTT has been enabled. The UDRC-II for example uses pin 16, BCM 23, for push to talk. I tried running fldigi to decode PSK31 and it was unable to cope with processing demand. After installing gpio on your Pi you can set the gpio port on fldigi's GPIO configuration tab. With the new controls, please separate left and right Speaker channels by clicking the chain symbol so it shows an open chain. Ive had my Pi for sometime from Adafruit.
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