"My problem with version 251 is it will not hold VFOs and bounce back and forth even when radio is in the lock mode. You may TX one minute on VFO A and next time TX on VFO B, wrong freq."

This is easy. The "Dual Watch" function is doing that. The radio switches automatically to whichever line, A or B, has radio traffic, or even just noise that breaks squelch. It drive me nuts at first, too. You need to turn this function off.

Set Menu 7 to Off, like this.

Press Menu, then 7.

Press Menu, then 0.

Press Menu (the radio says "Confirm")

Press Exit.

Or, if you want to do this with CHIRP:

Below where it says Memories on the left side, click Settings, Advanced Settings, uncheck Dual Watch, then upload back to the radio.

Paul - AE5JU

In God we trust. - The United States National Motto.

Link to Paul's articles from Main page of "Saxgourmet":

Paul Coats is the sole US importer of SaxRax products from:

http://www.saxrax.com

For SaxRax products, email Paul at saxraxus@saxrax.com