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F5OEO / rpitx

RF transmitter for Raspberry Pi
GNU General Public License v3.0
4.04k stars 536 forks source link

Rpitx signal getting lower and lower #92

Open bratlemi opened 6 years ago

bratlemi commented 6 years ago

Hi, Used rpitx to output a song converted to wav and play on my stereo. FM mode, chose 88Mhz (no station there) Worked better than expected. Without wire, in a case, across the room - decent signal. Next day, i had to put a wire to GPIO18 because it gave too weak signal. Day after, signal from gpio18+wire is so weak that i have to connect my stereo antenna with the wire... no transmit, basicaly a transfer :( Please help, i really love this tool. I tried pifmrds but that gives me no output whatsoever

klewisjohnson commented 6 years ago

It worked fine the first time. Through air?

On Jan 3, 2018 2:06 PM, "bratlemi" notifications@github.com wrote:

Hi, Used rpitx to output a song converted to wav and play on my stereo. FM mode, chose 88Mhz (no station there) Worked better than expected. Without wire, in a case, across the room - decent signal. Next day, i had to put a wire to GPIO18 because it gave too weak signal. Day after, signal from gpio18+wire is so weak that i have to connect my stereo antenna with the wire... no transmit, basicaly a transfer :( Please help, i really love this tool. I tried pifmrds but that gives me no output whatsoever

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bratlemi commented 6 years ago

Yes. Worked great. Signal good, across the room. Next day much lower, day after that it transmits to like 1cm away with a lot of static. Really really weak output signal. Same input file, same command

bratlemi commented 6 years ago

Help please