Dear customer previously purchased RT3 before April ,2016,
Maybe U bought our RT3 , can not programming manually , so sorry to make troubel for u .
but in fact, u can make it.
Good News for HAMS !!! Retevis will do a new digital radio for Amateur Radio Member specialize ! We can MEET ALL YOUR NEEDS and DEVELOP ALL THE DIGITAL RADIO FUNCTIONS U WANT ! As long as you can think of, Retevis R & D team can do it for you ! 0% Waiting ,100% Action now…