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TOPIC: Colibri BPF preamp oscillations

Colibri BPF preamp oscillations 28 Jun 2021 11:05 #1

  • OK8WW
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Hi all,

After BPF board installation into Colibri, there are oscillations on some bands. It's measured withhout antenna with 50R dmmy load on RX input. Worst sutuation is on 160m (see end of the video).

Colibri LNA oscillations

Anyone have a similar problem?

Regards

73 Richard OK8WW
Richard OK8WW / OM2TW
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