Parts List

1-2 VH F Enhanced Transmitter Instruction Manual VT-3 132 - 174 MHz
VHF Amplifier Instruction Manual VT-3 132 - 174 MHz : The amplifier module provides the final
stages of RF power amplification and harmonic filtering for the transmitter. This manual is intended
primarily as a reference since the am plifier module is adjusted at the factory.
Enhanced Synthesizer Instruction Manual OS(R/T)-3(A/H) 132 - 470 MHz: This manual pertains
to the enhanced synthesizer module.
VHF Transmitter Channel Designation Table VT-3 132 - 174 MHz: This document relates
operating frequency to the transmitter channel number (see section 2.1).
1.3 VT-3 132 - 174 MHz Transmitter Family Models
There are 8 distinct models in the VT-3/150 Synthesized Transmitter family each with different
bands of operation, channel spacing and/or power outputs. The 8 models are as follows:
• VT-3/140-SNA2 - synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W
• VT-3/140-SWA2 - synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W
• VT-3/140-SNA8 - synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W
• VT-3/140-SWA8 - synthesized, 132-150 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W
• VT-3/160-SNA2 - synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W
• VT-3/160-SWA2 - synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 0.5-2.0 W
• VT-3/160-SNA8 - synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W
• VT-3/160-SWA8 - synthesized, 150-174 MHz band, 5.0/6.25 kHz channels, 2.0-8.0 W
The transmitters' band of operation is determin ed by select components in the synthesizer module
and the channel width is determined by the roll-off of the splatter filter on the MT-3 Audio
Processor.