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The SMT chip I could solder and/or de-solder if I had to (it takes a special solder tip with a square "hat" to take these off) but the problem with the radio is that the PCB holding the chip is soldered perpendicular to the main board. The result is the main board partially covering the chip...
5 kHz shift mod for PLL02A radio
This mod is certainly possible with PLL02A based CB radios. I have done it with two radios: A HyGain 1 (model 2701) that I also had modified to 10 meters, and a Midland Export radio model 7001 that I left otherwise original. Both work great with this mod...
RCI-8719 & VCO
Whether or not the VCO can handle the additional 40 channels above and below the regular channels has nothing to do with the RCI-8719 PLL IC itself. It is a function of the synthesizer design that was done around the chip for the particular radio. To be precise it is a function...
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