I have a pair of Motorola XTNiD radio’s that I was gifted by a friend. They work amazingly with each other, unfortunately, I cannot get them to work with any one else’s radios. When on the same channel as anyone else I cannot hear anyone nor can they hear me on either of the two XTNiD, though the two XTNiD’s can hear each other.
I’m hoping someone on the forums knows what I might need to do, I’ve looked into the manual - link below - but can’t figure out what might be causing it. An RX code was set to 121 for several of the channels but I set this back to 0 - it affects all channels anyway - and I have ensured scramble is set off.
Well, your radios are programmed on different frequencies than the radios you are trying to talk to. Your radios are programmed for a specific set of frequencies and the radios you want to talk to are likely programmed differently.
Almost certainly a mismatch of the CTCSS or DPL codes. Probably more likely to be that the other radios just don’t match. What will really help is a programmable radio that will operate on all the combinations, simply and be able to identify what exactly you are sending, and what will open the squelch on receive.