TETRA Motorola CEP400 programming mode
To enter programming mode in Motorola CEP400 you have to press and hold the buttons above and below the PTT while turning the radio on.
Ratchet art by Zombiy // poczta (at) aquaz.eu / IRC libera.chat : aquaz / PGP 0x5468bd86fa512100 / jid : aquaz@jabber.ccc.de