Designed for GA and light sport aircraft, Trig Avionics' TY91 and TY92 are certified 25 kHz/8.33 kHz VHF radios that are compact and lightweight—making them ideal for panels with limited space. Both standard units consist of a radio hardware unit and a control head that can be mounted in a standard 2.25 inches round hole. In addition, Trig offers a Dual Control Kit version for both the TY91 or TY92 that allows two radio controllers to integrate with a single Trig radio hardware box; this configuration is ideal for training and flight school use. Users can choose from one of two power output options depending on their needs; the TY91 has a power output of 6 watts and the TY92 has a power output of 16 watts to accommodate longer-range transmissions.This TY92 (EDMO# 01452-00) has a higher power output of 16 watts which is suitable for longer range transmission and require a 28V power supply and features a Dual Control Kit that allows two radio controllers to integrate with a single Trig radio hardware box; this configuration is ideal for training and flight school use.