Cobra 21x extras

[Staybolt]

Is there a way to put upper or lower channels in my 21x?

 

[9C1Driver]

I could not find anything on this one. You might need one of the old expo kits to do that, not sure.

 

[Staybolt]

It has the 858 pll I was hoping someone would reply that knows the mod for it. I saw a mod years ago but I cant find it now..

 

[tecnicoloco]

Does your radio looks like this http://www.rigpix.com/cbfreeband/cobra_21xlr.htm

 

[TM86]

See if you can glean anything from here:

https://www.worldwidedx.com/threads/858pll-23-ch-to-40-channel-update.208448/

 

[Staybolt]

I did exactly what that fella did and swapped the pll and channel selector from a trc 452 and it works!

 

[Motor Mouth]

Is there a way to put upper or lower channels in my 21x?

I’m with ya staybolt!!! I have heard you can get these radios up to 100 channels not sure how yet but I’ll let ya know if I find out!!

 

[Motor Mouth]

I did exactly what that fella did and swapped the pll and channel selector from a trc 452 and it works!

 

[Motor Mouth]

Hmm I have a trc 453 with ssb