Comtech EF Data XPA-200 - Manual (Page 46)

XPA200-7984-I-OPT1, X-Band SSPA System Operation
XPA200-7984-I-OPT1, Rev.2 3-10
3.3.1 SSPA Commands (cont.)
When an operating mode is selected, a parameter or a digit
within the parameter will be flashing on the LCD display. Use
the "RIGHT" and "LEFT" arrows buttons to sequence through the
parameters or digits to select the next parameter or digit. A
specific parameter or value is selected by pressing the "ENT"
button. If a parameter or value is selected in error, press the
clear ("CLR") button which will return the SSPA to the original
parameter or value to allow another selection.
After selecting a parameter or digit, use the "UP" or "DOWN"
arrow buttons to select the next parameter, or to increment or
decrement the value of a digit. A specific new parameter or new
value is selected by pressing the "ENT" button. If a parameter
or value is selected in error, press the clear ("CLR") button
which will return the SSPA to the original parameter or value to
allow another selection.
Each time the clear ("CLR") button is pressed, the SSPA will
return to the menu level prior to the last "ENT" command.
3.3.2 Configuration Menu
The Configuration Functions are as follows:
3.3.2.1 Frequency Operating Mode
Attenuation (ATTN):
Input and displays the SSPA attenuation setting which
is selected between 0.00 to 20.00 in 0.25 dB steps.
The default setting is 10.00 dB.
Amplifier: Control supply voltage to RF FETS. The
default mode is ON.
Mute: Provide SSPA mute control. The default is OFF.
Other possible modes are:
INH inhibited or muted by the Mitec 2723B
EXT mute on from external J4 control (see
section 1).