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F5OEO / librpitx

Radio frequency transmitter library - Engine of rpitx
GNU General Public License v3.0
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Using Raspi Zero, TX only works on 91.5 MHz #1

Closed WA6YDQ closed 6 years ago

WA6YDQ commented 6 years ago

Raspi zero, uname -a: Linux gadget 4.9.59+ #1047 Sun Oct 29 11:47:10 GMT 2017 armv6l GNU/Linux

PiFmRds installed and compiled fine. When I run: ./pi_fm_rds -freq 103.1 -audio stereo_44100.wav I get a short (200msec) burst of audio with a very strong signal, then it goes away. Program still runs. If i put my FM receiver touching the pi I can barely hear the signal. The only freq that works is 91.5 mhz. I tried 90.9, 94.5, 101.9, 102.5, 102.9, 102.7, 103.1, 107.9, but these give no output after 200msec. When I use -freq 91.5 I get a very strong output at 91.5 and voice continues playing until I stop it.

I rebooted and still same problem. RpiTx works just fine on various frequencies.

WA6YDQ commented 6 years ago

Sorry, wrong project. I'll repose in PiFmRds