XSAT7080 X-Band Transceiver
Revision 0
System Operation
MN/XSAT7080.IOM
3–4
3.3.3 G
AIN
O
FFSET
Both the Receiver and the Transmitter Gain Offsets are user configurable. The Gain
Offset are only used in redundant configurations. The user can use these parameters to
adjust for gain difference between two XSAT Transceivers used in a 1:1 redundant
configuration. The offset can be selected between 0.00 and –4.00 dB in 0.25 dB
increments.
Associated Remote Command(s):
DGO= , UGO=
3.3.4 M
UTE
M
ODE
The XSAT offers two operating modes with regards to frequency changes and unit
muting. The two modes are; ‘muted after frequency change’ and ‘unmuted after
frequency change’.
•
If the Mute Mode is set to ‘1’, the firmware will leave the IF or RF muted
following a change to either the Down Converter Frequency or Up Converter
Frequency respectively. The operator can then ‘unmute’ the unit using the
commands in the next section.
•
If the Mute Mode is set to ‘0’, the firmware will automatically ‘unmute’ the IF or
RF following a change to the Down Converter Frequency or Up Converter
Frequency respectively. This assumes that the unit was ‘unmuted’ prior to the
frequency change and that there are no faults following the change. The factory
default for this mode is ‘1’.
Associated Remote Command(s):
MUT=
3.3.5 M
UTE
The output state of both the Receiver and the Transmitter are user controllable. The
receiver output state (the ‘IF IN’ port, J1) will be ON only if the following two
requirements are met:
(1) The receiver hardware must be fault free
(i.e. No Synthesiser or IFLO faults).
(2) The receiver must be unmuted (i.e. DMU=0 ).
The transmitter output state (the ‘RF OUT’ port, J7) will be ON only if the following
three requirements are met:
(1) The transmitter hardware must be fault free
(i.e. No Synthesiser or IFLO faults).
(2) The transmitter must be unmuted (i.e. UMU=0).
(3) The transmitter Amplifier must be ON (i.e. AMP=1).
Associated Remote Command(s):
DMU= , UMU=
