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Recent content by LU1IBL

  1. L

    TS-180 self oscillating

    Hi thanks for the reply Bias is correct. I'll check the low pass filters on the output
  2. L

    TS-180 self oscillating

    forgot the test was performed on a bird dummy load
  3. L

    TS-180 self oscillating

    Hi just checked, odd frequency harmonics, that with signal generator input. Without input and high Z self oscilations similar to the ones with generator. tested with rigol DG4162 signal generator bird 43 wattemeter DSA130A spectrum analyzer I asume there is to much gain on that...
  4. L

    TS-180 self oscillating

    Hi Thanks for the welcome and the answers. I'm just peparing the PA for some tests. I took it out from the rig, and I'm going to test it outside with a signal generator and dummy load. In case it oscillates i'll take the spectrum analizer to see what is the PA doing. The oscillation is...
  5. L

    TS-180 self oscillating

    Hi I'm having somew trouble with my TS-180, on perfect matched antenas or without using linear amplifier, but when antena is not very good or with more than 300W the rig begins self oscillating. Any ideas? Best Regards Marcelo LU1IBL
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