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Re: PA-1000 biasing current changes with time

Hello Dieter, I didn’t see any reply to your post about this issue but I suspect that you are correct in figuring that there is a fault in the LDMOS chip. I had a failure in the chip while still in warranty and it was sent in and repaired promptly. The bias voltage fluctuation occurred and then fail...
by NC9O
19 Jun 2021 13:50
 
Forum: Juma Discussion
Topic: PA-1000 biasing current changes with time
Replies: 1
Views: 11697

Re: JUMA PA1000 with KX3 and PX3

Matti one additional cable is needed In this diagram from the ACC2 socket on the KX3 to the PA1000 for PTT as per the user manual on page 10. I use this setup and it works without any issues and it tracks band changes flawlessly.

Thanks for such a great amplifier,
Skip NC9O
by NC9O
30 Oct 2020 02:17
 
Forum: Juma Discussion
Topic: JUMA PA1000 with KX3 and PX3
Replies: 1
Views: 12376

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