User`s manual

100-M0058X2 6 of 13
www.cobham.com/gms
3.1.1 Power Up
On power up the LCD displays the “GMS” logo and firmware number and then the “Initializing” display
appears. It takes approximately 35 seconds before communications is established for the first time on
power up.
↓
[Note: If communications cannot be established for some reason the LOST MDT-B COMM display
appears. Re-try establishing communications by pressing the ENTR button.]
3.1.2 Main Menu
3.1.2.1 Channel Display
The CHANNEL display appears after the front panel establishes communication with the
transmitter . In this mode when the ↑ UP or ↓ DOWN button is pressed the transmitter steps
through the available channels. The display blinks for ten seconds after releasing the button. If
ENTR button is pressed before ten seconds, the frequency changes and is stored in nonvolatile
memory. If ENTR is not pressed before ten seconds, the display will stop blinking and the
transmitter will reset to the previous frequency. In addition, on the second line of the LCD the
video type and status is displayed. If no video is detected the message “NO VIDEO INPUT” is
displayed. Note: This message does not apply when the video input mode is set to SDI .The
channel display and control functions are shown below (underline words are meant to
demonstrate variables which are subject to change depending on values chosen).
UP ↑ Increment channel
DOWN ↓ Decrement channel
ENTR Saves channel
CTRL Change to ENTER DETAIL MENU display
3.1.2.2 Enter Detail Menu Display
This display window allows user to enter a detail submenu in which variables such as COFDM
mode, bandwidth guard interval, FEC (forward error correction), video input type, audio parameters
and backlight options are available.
MDT-B IS
INITIALIZING
GMS RCU2000 G108
TX 2500 MHz
Composite, NTSC
Channel Display
with video