The TM840 is a professional trunked DMR radio that can be used as a car radio or a stationary radio.
The installed single frequency repeater (SFR) function allows you to build a digital microsystem in a limited budget.
A GPS positioning module is installed.
ARC4 DMRA encryption (40 bits) is installed.
Possibility to install advanced encryption AES DMRA (256) - for an additional fee.