Config:) Conv-A Or Conv-B (Converter Unit A Or Unit B); Config:) Cnva Or Cnvb  Freq/Mute - Comtech EF Data LBC-4000 Installation And Operation Manual

L-band up/down converter system
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Use the [][] keys to move the cursor to the desired choice. Press [ENT]. The function of each
CONFIG submenu is as follows:
LBC-4000: CONV-A, CONV-B Submenus – Displays the current configuration of the
selected converter, including the frequency, attenuation, and slope.
LBC-4000-ST: CONV-A Submenu – Displays the current configuration of the selected
converter, including the frequency, attenuation, and slope.
REMOTE Submenu – The selections here allow you to select whether you control the
unit locally or remotely, set the unit address, the interface type, and the operating
parameters for that interface.
REDUND Submenu – The selections here allow you to identify the redundancy state and
mode (see Appendix B. REDUNDANCY OPERATION for detailed information about
redundancy operations).
REFADJ Submenu – This screen allows you to adjust the reference oscillator.
SPECT-INV Submenu – The selections here allow you to set the Converter A and
Converter B spectral inversion to INVERTED or NORMAL.
6.3.3.1

(CONFIG:) CONV-A or CONV-B (Converter Unit A or Unit B)

LBC-4000: Where 'X' is the selected converter – CnvA (Converter Unit A) or CnvB (Converter
Unit B) – and 'YYY' indicates its operating frequency (70 or 140 MHz), use the [][] arrow keys
to select FREQ/MUTE or ATTEN/SLOPE. Press [ENT].
LBC-4000-ST: Where 'X' is the selected converter – CnvA (Converter Unit A) and 'YYY' indicates
its operating frequency (70 or 140 MHz), use the [][] arrow keys to select FREQ/MUTE or
ATTEN/SLOPE. Press [ENT].
(CONFIG:) CnvA or CnvB  FREQ/MUTE
6.3.3.1.1
Select the CMM (Configuration Mute Mode): Use the [][] arrow keys on the top line to
select CMM. Use the [][] arrow keys to select ON or OFF.
Set the operating frequency: Use the [][] arrow keys on the bottom line to select a digit to
edit, and then use the [][] arrow keys to change its value. Repeat for all digits until you define
the desired frequency.
Select the Tx/Rx mute status: Use the [][] arrow keys on the bottom line to select the
parameter. Use the [][] arrow keys to select ON or OFF.
The displays reads 'Tx' when the installed module is an Up Converter, or 'Rx'
when the installed module is a Down Converter.
Press [ENT].
Front Panel Operation
CONFIG CnvX:(IF=YYYMHz)
FREQ/MUTE
ATTN/SLOPE
CONFIG CnvX:
Frq=01980.000MHz
LBC-4000 L-Band Up/Down Converter System
CMM=ON
Rx=ON
6–8
Revision 6
MN-LBC-4000

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