Echo Adjustment On A CRT-9900

There are sometimes a case when the echo on a CRT-9900 can be a little too much and always there was the question “is there an adjustment” well thanks to YouTube user dwhutch there is indeed an adjustment and all the information is labelled here below.

I need to look if this is the same as with the Team Ham MobileCom and Anytone AT-6666 but guess it could be, but in the meantime for the CRT users the answer us below.

And below a great video from Steve Stevens from his collection:

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