VHF desktop transmitter module designed for Wisycom MicroEar receivers. Covers 140-250 MHz with 16 switchable frequencies within a 10 MHz window. RF output selectable between 10 mW and 300 mW. FM modulation with +/-5 kHz peak deviation and transformer-balanced XLR3-F audio input (Line/Mic, externally adjustable). Includes compressor/noise-gate for MicroEar, remote PTT telemetry, and optional VOX38. Unit measures 40 x 120 x 175 mm and weighs about 700 g; powered from 10.5-16 Vdc.