[CQ-Contest] Alpha 91 protection ckt question

[KN5H]

All:

Who can assist me with this?

Only on 10 mtrs, a few certain key sounds, "five" and "nine", specifically the "I", kicks the amp offline.

The SWR is not an issue. Overdriving is not an issue. The transceiver output is barely 50 w.

No compression seems to help. A hand mic was substituted for the boom headset mic but the trouble continues.

Any hints?

73 de KN5H


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