User`s manual

100-M0145X2 22 of 36
www.cobham.com/gms
 Install Omni-directional antennas (or ones best suited for the application) onto the RF IN A and RF
IN B ports on the MVRD and one on the SMA RF connector on the Messenger 2 transmitter or
VETA Messenger transmitter. If using VETA Transmitter, refer to Corresponding manual for
interfaces.
 Using the VMT as your test TX allows you to check NTSC or PAL with MPEG-2 or MPEG-
4 part 2 compression. In this mode, the only valid output video source on the MVRD will be
the composite output port.
 Attach the M2T (Messenger 2 transmitter) power cable and apply +12VDC to the red pigtail and
GND to the black pigtail. Ensure power supply can supply at least 1.5A at +12VDC.
 Attach a composite video source to the BNC video of either TX for SD testing and analog audio
source to the XLR input cable’s that is located on the M2T breakout cable. Connect a HD-SDI source
to the M2T’s BNC (Female) SDI input for HD/SD AVC testing.
 If you are using a M2T with factory default set-up groups, then set the first 2 rotary switches on the
M2T to the desired preconfigured setting 1 – 20. See Appendix B for matching the M2T’s 20 set-
ups with the MVRD’s 16 set-up
Note: Using the M2T as your test TX allows you to check NTSC, PAL, 480p, 720p, 1080i
and 1080p with AVC (MPEG-4 part 10) compression. In this mode, all video output ports
will be active. The composite output port is driven by an internal video scaler to produce a
SD monitor output even when the system is processing SD. The video scaler currently has
limited functionality. See Error! Reference source not found. for additional information.
 Attach the appropriate video output port on the MVRD to its matching video input port of a video
display.
 Attach the audio output port on the MVRD to the input port of an audio amplifier.
 Attach the power cable assembly (780-C0451) to the MVRD and AC power source.
 Turn on the audio/video source and audio amplifier and video display.
 Turn on the MVRD with the “PWR” switch on the front panel (up is ON). The 2 front LED’s will turn
on then off and the front display will light up.
 Once the MVRD has powered-up, use the front user interface to set the appropriate preconfigured
setting to match the transmitter.
 After approximately 5 seconds the front “LOCK” LED should turn a solid green and video should
appear on the video display.
 If the green “LOCK” LED light does not come on and/or there is no video playing on your display,
check the following:
 Ensure the receiver and transmitter configuration numbers are set accordingly to the
configuration map.
 If not, change the settings on either the transmitter or receiver so they match up.
 Ensure the MVRD and the TX is turned ON.
 Ensure the video and audio are properly connected to the MVRD and the TX.
 If the TX and RX are physically too close to each other, the RX may overload causing no or
distorted Video. You may move the TX & RX further apart.
 If the red LED stays on and the green led goes off, recycle power. If it persist contact
Cobham/GMS.