RF recieve path

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Zoltan9992000
 

Posts: 4
Joined: 17 Nov 2022, 22:52

RF recieve path

Post by Zoltan9992000 »

What is the precise receive path the HF signal takes to get from the RF board to the sampling detector U6 ?

Does it pass through the LPF filter then through Q1 and into Pin 9 of U6 ?

Or does it have a direct route bypassing the LPF filter ?

I have searched the forum, checked the schematic and the board itself but not found a definitive answer.
LILO
 

Posts: 94
Joined: 12 Aug 2022, 09:15

Re: RF recieve path

Post by LILO »

The schematics is pretty clear.
Ant lpf q1 u6 u9 mcu
Zoltan9992000
 

Posts: 4
Joined: 17 Nov 2022, 22:52

Re: RF recieve path

Post by Zoltan9992000 »

Thanks LILO,

That is how I read it but wasn't sure (bit of a noob to electronics esp RF) .

I hadn't realised the LPF worked in both directions - that's efficient.

Is this normal practice in transceivers ?

Thanks,

Paul M7MGK
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