User's Manual Part 2

T6T 300 Watt VHF Transmitter Page 94 Installation
External Speaker
The External Speaker connector is a 3.5 mm stereo jack used for connecting an external speaker to the
transmitter to provide sidetone. This speaker should be a high impedance active type.
Table 23 External Speaker
Pin Signal Characteristic
Tip Speaker drive (output) 0 to 3 V pk-pk. Connected directly to Ring.
Ring Speaker drive (output) 0 to 3 V pk-pk. Connected directly to Tip.
Sleeve Ground 0 V.