User Manual

5
OVERVIEW
The VMS transmitters are small module transmitters designed for off body applications. They are part of a family of video
transmitters from DTC that provide 250 mW, 2 Watts and 5 Watts output power.
Feature Description
Programmable
User programmable video channels, selectable in 250 kHz steps. Two
user programmable audio sub carriers, selectable in 10 kHz steps
from 6 MHz to 7.5 MHz.
Audio Sub-Carriers
Audio sub carriers are OFF unless microphones are connected. The
transmitter automatically senses when a microphone has been
connected.
The audio sub carriers are phase locked, and will not drift into the
video signal.
Automatic Gain Control is provided on each audio input, amplifying
soft sounds.
Efficient Switching Power Supply
They generate far less heat than traditional video transmitters.
They operate significantly longer than traditional video transmitters on
the same power source.
External Power Loop Through
The power applied to the Multi I/O pin is automatically looped through
the unit, and available on a second pin to power a remote device,
such as a camera. If you apply 9 Volts in, you will get 9 Volts out, with
a maximum current drain of 200mA
Encryption Options
The VMS series supports Ovation Micro ViewLock II™encryption,
which adds approximately .35" to the thickness of the unit.