Anan 200 D

lauchlin
Posts: 13
Joined: Thu Oct 28, 2021 6:29 pm

Anan 200 D

Postby lauchlin » Wed Jan 25, 2023 8:54 pm

My Radio has been working great but about a month ago My receive level keeps dropping off when i UN key my mic.. My normal back ground noise level is s 8 or s9 i live in the city but drops to s5 or lower or a little higher if i tap mic key it might jump back to normal till i key up again .I have no problem on tx and if i turn radio on but don't key it the receive is fine..
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KA1GXR
Posts: 40
Joined: Sun Apr 09, 2017 10:53 pm
Location: ASHLAND MA

Re: Anan 200 D

Postby KA1GXR » Thu Jan 26, 2023 1:38 am

My first thought was AGC level setting wrong somewhere but seems like bad T/R relay contact in receive side. How is receive on RX 2? Not antenna 2 ? A different path to RX2 antenna connector.
lauchlin
Posts: 13
Joined: Thu Oct 28, 2021 6:29 pm

Re: Anan 200 D

Postby lauchlin » Thu Jan 26, 2023 3:21 am

Thank you for reply and i think it is the T/R switch i am on ant 2 now and its working great ..
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w-u-2-o
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Joined: Fri Mar 10, 2017 1:47 pm

Re: Anan 200 D

Postby w-u-2-o » Thu Jan 26, 2023 1:28 pm

If the ANT2 input is working then it is not the T/R relay, but rather K8 that has probably gone bad. If it was the T/R relay then all ANT ports would be bad.

See the schematics here: viewtopic.php?f=35&t=2338
lauchlin
Posts: 13
Joined: Thu Oct 28, 2021 6:29 pm

Re: Anan 200 D

Postby lauchlin » Thu Jan 26, 2023 8:54 pm

thank you very much .I have never looked inside that schematic will go a long way ...

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