If this is a Cobra 135/a Base or the Cobra 135 mobile (23 Ch)
There is a xtal mod that gives full coverage for the base.
1=26 to 23=55
All you change one Mixer xtal from 12.xxx to a 13.000 MHZ
Of course you get the regular every 4th channel skip (For the RC channels) but you can switch a different xtal to fix that.
I have the mod Info for this written down somewhere in storage.
If you cannot find it elsewhere, let me know, will see if I can dig it up. (I have the SAMS for it somewhere too)
I know the radio well, I used one for 5 years, it was my first base radio. And I bought a mobile version which was a 138.
Rogerbird1
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