From BaofengTech, a 25-watt amplifier that will also handle TDMA for DMR transmissions.  Use your HT in the car, with an external antenna, and reach out as far as a mobile radio.  In this video, I will do some power testing of this new unit.

For purchase information, follow this link:

BTECH AMP-U25D Amplifier (Supports DMR) UHF (400-480MHz)


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