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F5OEO / WsprryPi

Raspberry Pi WSPR transmitter using NTP based frequency calibration
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Raspian Buster - strange behaviour - frequency is some kHz off - sends always on first band #6

Closed hubertmeier closed 1 year ago

hubertmeier commented 5 years ago

Hi,

yesterday i was looking for another repo because i installed the new raspian buster on a pi 3b+ on which i used WsprryPi from JamesP6000 which was pretty ok. After installing a fresh raspian buster the compiler stopped with an error: undefined reference to 'makedev'

Your version seems to be newer, so i tried this. The compiler works, i see the error shortly but only as warning.

If i start with the same command line like this: sudo /home/pi/WsprryPi/wspr --repeat --self-calibration DO7TIM JN39 10 10m 15m

the output seems to be ok, but the transmission is only 10m even if the frequency shows 15m ! The frequency is about 3 kHz off, the entry gpu_freq was done and i installed ntp and ntpstat. I have a kiwi-SDR, so i can see what the raspi does.

Desired center frequency for WSPR transmission: 28.126100 MHz <- OK Waiting for next WSPR transmission window... TX started at: UTC 2019-06-26 15:24:01.001 TX ended at: UTC 2019-06-26 15:25:52.638 (111.637 s) Desired center frequency for WSPR transmission: 21.096100 MHz <- sends 10m too Waiting for next WSPR transmission window... TX started at: UTC 2019-06-26 15:26:01.000 TX ended at: UTC 2019-06-26 15:27:51.418 (110.417 s) Desired center frequency for WSPR transmission: 28.126100 MHz Waiting for next WSPR transmission window... TX started at: UTC 2019-06-26 15:28:01.000

i use a combined 10m/15m-Antenna and bandpass-filter

Thank you

F5OEO commented 1 year ago

Issue should be fixed with https://github.com/F5OEO/WsprryPi/commit/58a6fc6375f5f3a54ee5864e6c06ee80919b2929