I have two CDM 1550 403 to 470 cut, I bought these only to find out that they most likely need PA's They receive great, the 2 tone decode works with out a hick up they program up they just don't transmit. I have one as a dedicated uhf scanner in my house so that I can listen to the fire dept and save my battery on my HT. I am selling one and will part with the one that I am using if someone wants it. asking $100 each plus shipping or maybe a trade let me know what you got. I will try and get pictures up as soon as I can. Thanks for looking!