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Sunsdr
International Forum
Connection to external Power Amplifiers
SSQRP + XPA125B
In this category, you can discuss different ways of connection between EE radios and external Power Amplifiers.

TOPIC: SSQRP + XPA125B

Connecting XPA125B to SUNSDRQRP 23 Feb 2021 10:33 #1

I have purchased the PTT cable from Pileup to connect my SUNSDRQRP to XPA125B Amp.
Do I need to isolate the PTT with diode protection and use the computer to key the amp?
I thought this cable has an opti-coupler to isolate the audio already?
I have attached the diagram found in the manual
Attachments:
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Connecting XPA125B to SUNSDRQRP 25 Feb 2021 09:13 #2

  • g0cgl
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The protection is included in the cable. Connect to the computer, supply CAT to that port and set any PTT delay required in the software.
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Sunsdr
International Forum
Connection to external Power Amplifiers
SSQRP + XPA125B
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