RX Problem on RF board, TX fine Efficiency and Power

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SY1DRO
 

Posts: 6
Joined: 12 Jan 2022, 10:44

RX Problem on RF board, TX fine Efficiency and Power

Post by SY1DRO »

Hello, I have two rf boards, one receives well and txs well and one that does not rx like at all but for some reason it does tx well, I switched PA and checked loose solder joints, what component failures could cause this? This is all on the same main board.
SY1DRO
 

Posts: 6
Joined: 12 Jan 2022, 10:44

Re: RX Problem on RF board, TX fine Efficiency and Power

Post by SY1DRO »

I should add I did try connecting coax directly to the rf pin on the mainboard and it does rx well
SY1DRO
 

Posts: 6
Joined: 12 Jan 2022, 10:44

Re: RX Problem on RF board, TX fine Efficiency and Power

Post by SY1DRO »

Tracing the RF path it seems that this trace was broken somewhere so I repaired it RF to Choke
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firefox_sMbPJCjFI0.png (21.4 KiB) Viewed 145 times
Here is irl
0-02-05-893b2f0690cbfcdafdedc2eb72bbbc932890221366b3f70a6a94620a01f7265f_185e31de747c2a83.jpg
0-02-05-893b2f0690cbfcdafdedc2eb72bbbc932890221366b3f70a6a94620a01f7265f_185e31de747c2a83.jpg (234.05 KiB) Viewed 145 times
For some reason the trace was broken from the pcb manufacturer.
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