VT15/OM Rev-A
7
3.2 Pre-Test
Although each unit is thoroughly tested at the factory for both functional and
environmental performance, a minimal amount of pre-testing should be done by the
operator before placing the transmitter into service. The transmitter, an appropriate AMP
receiver, transmit and receive antennas, a video camera, a video monitor, and DC power
supplies are the only components required to perform a functional test of the transmitter.
If testing audio, an audio source (microphone or line level source as appropriate) and a
speaker or headphones will also be required.
The transmit and receive antennas should be situated at a distance of greater than 25 feet
apart to prevent serious damage to or destruction of the receiver’s front end. Set up the
receiver and make all necessary adjustments in accordance with that unit’s Operation
Manual. Connect the receiver video output to the video monitor and, if testing audio,
connect the receiver audio output to the speaker or headphones.
If using remote control, connect remote control to the On/Off Control line (white wire in
DC Power Cable). If not using remote control, connect the On/Off Control line to power
or chassis ground.
Verify DC power supplies are b9 and +16 Vdc. With the DC Power Cable
(MDM-9S connector) DISCONNECTED from the transmitter, connect DC power supply
to DC Power Cable (red = positive DC input, black = negative DC input (ground)). Do
not connect DC Power Cable to transmitter until all other connections are complete.
Connect the transmit antenna to transmitter RF output connector (SMA). Connect the
Video Adapter Cable to the transmitter video input connector (SSMA, SMB optional).
Connect the Video Cable between the Video Adapter Cable and video camera. If testing
audio, connect the audio source to the Audio Cable (MDM-9P connector) and Audio
Cable to the transmitter (mates to MDM-9S connector on transmitter). Refer to Section
4.1 for Audio Cable wiring.
Configure switches as instructed in Section 4.2. Connect DC Power Cable to transmitter
(mates to MDM-9P connector on transmitter). If not using remote control, video should
be observed on the monitor and audio heard through the speaker / headphones (if
applicable) once the transmitter locks on frequency (requires several seconds). If using
remote control, the On/Off Control line must be enabled (grounded or <0.8 Vdc) before
video and audio will be present.
If no video or audio (if applicable) is present, refer to Section 5.2 for troubleshooting
instructions.
4.0
INSTALLATION AND OPERATING INSTRUCTIONS
4.1
Use and Function of Connectors
AMP Transmitters are simple to install, requiring only connection to the antenna, camera,
microphone (if audio specified), and DC power supply using the appropriate cables and
jacks. The use and function of the transmitter connectors are as follows:
