User Manual

DTC COMMUNICATIONS, INC.
11
ANTENNAS
A standard SMA connector is used as the antenna connector on both the VBS/
VBL-250. Refer to a list of DTC antennas available on page 21.
CHASSIS MOUNTED POWER ON/OFF SWITCH
A slide switch is provided for local control of power ON and OFF. Green dot is ON,
Red dot is OFF.
MICROPHONE CONNECTORS
Two connectors accommodate two microphone inputs. Each connector has two
contacts and provides power to the microphone as well as connecting the audio
signal into the transmitter. The audio sub-carriers are activated by the presence of
the microphone. If a microphone is removed, that sub-carrier is removed from the
transmit signal. Turning off the unused sub-carrier saves power and may improve
picture quality.
CONNECTIONS
NOTE: REMOTE ON overrides the
chassis mounted ON/OFF switch.
(i.e. When the chassis mounted
power switch is set to OFF,
REMOTE ON can be used to turn
the transmitter ON.)
TIP You may use the VBS/VBL series
transmitters with other manufacturers
antennas. Verify that they are suited for
the band you are operating in.
Microphone Connectors
On/OFF
Switch
Antenna Connector