User`s manual

100-M0074X1 15 of 24
www.cobham.com/gms
Field R/W Description
least 10 % greater than the ASI stream rate.
Input Mode
R/W
The MDT-A defaults to ASI only. No other selection
is allowed.
Video Input
R/W
Not applicable.
Video Locked
Status
R
Video locked when an ASI stream is present.
Yes,indicates
Video is locked. No, not locked.
Audio Enable
-
Not applicable
Audio Mute
-
Not applicable
Audio Level
-
Not applicable
Audio Gain
-
Not applicable
5.3.3 Pull-Down Menu Definitions
There are several different pull-down menus that are included in the MDT-A Configurator
program. Each of these pull-down menus contains further user-configurable options or
commands. The following sections describe these menus in detail.
5.3.3.1 File
This pull-down menu offers to exit the MDT-A Configurator program . Alternatively the ‘X’
box in the upper right hand corner of the window can be used to exit the program. The
“Store All Setup Pages” button on the main menu will save all parameters.
5.3.3.2 Configuration
This pull-down menu contains several different configuration options. These are outlined
below:
 Special Setup
o Others (see figure 6)- This menu displays the following:
 RF Output Attenuation – The RF output of the MDT-A can be
attenuated up to 10 dB in increments of 1 dB.
 COFDM Spectrum Inversion - choices include normal or inverted.
The transmitter is configured with the receiver it ships with and the
inversion mode shouldn’t have to be changed. However if a different
receiver is used the inversion mode may have to be changed. Some
receivers will accept either inversion mode. Check the parameters of the
receivers to ensure the correct inversion mode is selected.
 Sleep Mode-Can be used to put transmitter in a sleep mode, a low
power mode where the encoder functions and many of the power
regulators are shut down enabling a saving in current (approx. 40%)
when transmitter is not active.
 Frequency switch – choices offered are enabled or disabled. These
are the four frequency select switches discussed under section 5.1.2. If
disabled the switches will not respond to changes (frequency changes
could still be accomplish by changing the “RF FREQ MHz” field in the
GMS MDT-A control software. Enabling them allows the frequency to be
changed when the switches are moved. Factory default enables the
switches. Keep in mind that you must click on the “Store All Setup
Pages” button for any new selection to take place.