Hi, how do I change models and keep it at that?

I can change to the other 18 models, but it will not save it. Dont have the manual with me now and at the track. Its not as simple as switching it off after selecting the model you want, like on all my other transmitters.

You're probably already home from the track by the time you read this...


Highlight the model you want (1, 2, 3, 4, etc)

Simultaneously press and hold the inc and dec keys for a second or two

it was an interesting day running 2 cars today. I did at one time try and press inc & dec keys, however did not hold it down for long enough. Anyway, it seems like this radio is the only one of I know that requires so much work to change models.