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Can I make the squelch knob control RF gain

I would greatly appreciate some guidance on making an RF Gain circuit for my back up radio, a Realistic TRC-440. I can email schematic, but would have to scan the document. Thanks!
 
 
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It's obvious to me that the Teddy has a different version of the 505 board. Although the Teddy doesn't have an RF gain,it has power and modulation adjustment points on it whereas the 505 can only benefit by adjusting L205 and spreading L203 and using a good power mic

Here's a pic of the 505 board
 

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  • @ Geoexplorer69:
    Coax question. I just put up a new Sirio monsoon base antenna with 100’ of rg8u coax testing with myMFJ antenna analyzer shows 1.4 swr at 26.965mhz and a 1.1 at 27.405 mhz . When I checked the ohms it’s steady a 30 ohms across the entire bandwidth.
  • @ Geoexplorer69:
    Is 30 ohms worth worrying about in a 100’ run of rg8u ?
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