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CDM-Qx Satellite Modem Revision 5
Front Panel Operation MN/CDMQx.IOM
5–6
5.2.3 Spectrum Analyzer
The built-in spectrum analyzer mode is available, accessible via remote control, front
panel or web browser. When it is active, the selected demod will not respond to specific
Rx front panel settings, nor will it carry traffic. It is marked with an S suffix. It has it’s
own front panel menu controls under “Test” menu.
In this example, the bottom right receiver (as seen from the back of the chassis) is being
used as a spectrum analyzer. Only one Rx is allowed to enable spectrum analyzer in a
chassis. To view the spectrum, the user needs a Windows application from Comtech or a
web browser.
5.3 Right-Hand Display Area
Figure 5-3 shows the menu structure similar to the CDM-570L. The menus are shown
fully populated, but if the addressed plug-in device is a modulator or a demodulator,
much of the menu tree will be locked out. Functions that are not tied to a plug-in slot
(like the external reference) are displayed no matter which slot is addressed.
The detailed screens and menus are as follows.
5.4 Accessing the Display Area
Since the front panel display screen is split into two, the left-hand display area (also
called as the slot screen) can be accessed by using ◄ arrow key if the menu-level is
MAIN, CONFIG, MONITOR, or INFO (and there is more than one module to select
between).
To go back to the right-hand display area (also called the menu screen), just press CLR
or ENT. By pressing ENT, the user has selected the plug-in card.
TX TX | (right hand display area)
<RX> RXS | (right hand display area)