Gain offset, Mute mode, Mute – Comtech EF Data CSAT-6070 User Manual

Page 68

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5 to 25 Watt C-Band Transceiver

Revision 0

System Operation

MN/XSAT607025.IOM

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 CSAT 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=

Example(s)

DGO= 1.75, UGO=1.00

3.3.4 M

UTE

M

ODE

The CSAT 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=

Example(s) MUT=

0

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).

3–4

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