glass

Hi
I am new in this forum, I hope I posted my question in the right forum.
I need your help .

I just bought a Innovatek w72gps that was shipped to me from Canada.

I am in Israel ,

I have a problem that I lose radio signals as I go out from my city , in the city
it works ok.
Outside of the city when searching for stations it does not find any, (It does in my old radio)

I was told that the problem most probably is in the RDS system that is not available in Israel.
I disabled TA but could not find how to disable RDS in the w72gps .

Any ideas ?

Thanks
Glass Rafi