Newbie trying to get a GM 30 to communicate with a RTT 22

[roberthamchuk]

I have a Radioddity GM-30.  My buddy has a Retevis RTT-22.  I can hear the RTT-22 transmit on the GM-30.  But, he cannot hear the GM-30 transmit to the RTT-22.  I found online the freq lists for the RTT-22, and tried programming the GM-30, but to no avail.

Any help or suggestions would be truly appreciated!

Cheers!

[SteveShannon]

1 hour ago, roberthamchuk said:

I have a Radioddity GM-30.  My buddy has a Retevis RTT-22.  I can hear the RTT-22 transmit on the GM-30.  But, he cannot hear the GM-30 transmit to the RTT-22.  I found online the freq lists for the RTT-22, and tried programming the GM-30, but to no avail.

Any help or suggestions would be truly appreciated!

Cheers!

Without knowing more about what you actually tried, it really boils down to this:

1. Try different channels; it won’t be the first time a radio doesn’t work on all channels. The GM-30 is capable of transmitting on eight repeater channels that the RT22, a FRS radio, cannot receive. Stay away from those. They will be named RP15 - RP22 or they will be numbered 23-30, but they are frequencies intended to transmit to repeaters which FRS radios like the RT22 don’t do. If the GM30 is set to one of those channels, it will hear the RT22 because they share the same receiving frequencies, but the RT22 will never hear the GM30.

2. Make sure both radios are on the same channel.

3. Make sure you don’t have any “privacy tones” set for either, for transmit or receive.

4. Don’t just stand right next to each other when you test the radios; separate yourselves by several feet. Some radios go deaf in the presence of strong signals. That’s commonly called “desensing”.

 

Welcome to the forums!

[WRXB215]

My money is on number 3. I bet the RT22 has an RX tone set. Seems like we are seeing more and more of these FRS radios being shipped out with tones already set.

[Socalgmrs]

Yup. The rt22 needs to go on a programmer and sort things out.  Chirp should be compatible with a baufang gt-22 selection and a $20 cable.  They may even have a rt-22 selection now.   Sounds like your one step a head compared to the old rt22 radios.  They used to come with all channels messed and none programmed to FRS.  So you just gotta go in and do some tone work.  Kinda stinks they only have 16 channels but that’s ok it’s only a 2w radio.