Comtech EF Data CSAT-6070 - Manual (Page 59)

/50 Watt C-Band Transceiver Revision 0
System Operation MN/CSAT607050.IOM
The transmitter output state (the ‘RF OUT’ port, J2) 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=
Example(s): DMU=0 , UMU=0
3.3.6 T
X
A
MPLIFIER
The Tx amplifier ON/OFF state is user controllable. Turning the Tx amplifier
OFF removes the 10Vdc supply to the RF Power FETs. The TX Amplifier must
be ON in order for the CSAT to transmit a RF signal.
Associated Remote Command(s):
AMP=
Example(s): AMP=1
3.3.7 C
HANNEL
S
LOPE
A
DJUST
M
ODE
Comtech EF Data’s CSAT transcievers provide two operating modes for the
Receiver IF and Transmitter RF output channel slopes; ‘Calibrated’ and ‘Manual’
modes.
• In Calibrated mode, the CSAT firmware uses a calibration ‘lookup’ table
based on the selected frequency to determine the optimum channel slope
setting.
• In Manual mode, the customer adjusts the channel slope using the DSA
and USA commands defined in the next section.
Associated Remote Command(s): DSM=, USM=
Example(s): DSM=1, USM=1
3.3.8 C
HANNEL
S
LOPE
A
DJUST
Both the Receiver IF output and the Transmitter RF output channel slopes are
user controllable.
• The receiver channel slope can be varied for approximately 2dB of
positive slope. The parameter for controlling this is the ‘Down Slope
3-5