Comtech EF Data LBC-4000 - Manual (Page 63)

LBC-4000 L-Band Up/Down Converter System with Ethernet Revision 2
Front Panel Operation MN-LBC4000A
5–7
5.2.1.1 CONFIG: CONV-A or CONV-B (Converter Unit A or Unit B)
CONFIG CnvX: (IF=YYYMHz)
FREQ/MUTE ATTN/SLOPE
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, and then press [ENT].
CONFIG CnvA or CnvB Æ FREQ/MUTE
CONFIG CnvX: CMM=ON
Frq=01980.000MHz Rx=ON
To select the CMM (Configuration Mute Mode): Use the [←][→] arrow keys to select the mute
parameter, and then use the [↑][↓] arrow keys to select ON or OFF.
Use the [←][→] arrow keys to select the parameter to edit – CMM, Freq, or – depending on
whether the unit is an Upconverter or Downconverter – Rx or Tx.
To set the converter’s operating frequency: Use the [←][→] arrow keys to select a digit to edit,
and then use the [↑][↓] arrow keys to change that digit. Repeat for all digits until the desired
frequency has been defined.
To select the Tx/Rx mute status: Use the [←][→] arrow keys to select the mute parameter, and
then use the [↑][↓] arrow keys to select ON or OFF.
Press [ENT] when done.
CONFIG CnvA or CnvB Æ ATTEN/SLOPE
When ATTEN/SLOPE is selected for CnvA:
CONFIG CnvA: Ofst=+0.0dB
Atten=00.00dB Slope=0.0
When ATTEN/SLOPE is selected for CnvB:
CONFIG CnvB:
Atten=00.00dB Slope=0.0
For either, use the [←][→] arrow keys to select the parameter to edit – Atten or Slope.
To set the converter’s attenuation: Use the [←][→] arrow keys to select a digit to edit, and then
use the [↑][↓] arrow keys to change its value.
To set the converter’s slope value: Use the [↑][↓] arrow keys to select, in 0.1 increments, a
value between 0.0 and 1.0.