General Dynamics CG-1220, Operation And Maintenance Manual

Page: 47 / 134

Operation
CG-1220 DTR 4-15
operation. Enable to exclude the error channel for normal operation. NOTE :
This can also be set by M&C commands in TRL-Emulation.
 MUTE-FAULT enables or disables the mute switch fault. This feature should
be disabled for monopulse plates which do not support mute switch
feedback. Disabling the fault on systems that support mute switch failure
detection is not recommended for normal operation. Feedback is provided
via mute status lines on I/O interface 2.

RATE is the minimum number of milliseconds between the monopulse data
transmissions of START. If the value is -1, new data is sent only after
receiving a carriage return.
NOTE : Also used by M&C in TRL-Emulation

MODE sets the type of monopulse output of START, either two error vectors
with sum for normal operation or four phase levels for diagnostics. Remote
control is required to start normal operation; loss of control stops
automatically. All output is in hexadecimal:
0:VECTORS reply:
"[+|-]ddddd [+|-]eeeee -fffff" where d and e units are |dBm/10000|
and f units are |dBm/1000| (range 0 to -262.143 dBm)
1:LEVELS reply:
"+gggggg" where units are |dBm/1000|
NOTE
: Also set by M&C in TRL-Emulation
 START monopulse operation; to stop, use EXIT followed by a carriage
return. It stops automatically if and when a fault is set. After stopping, in
either case, the mute switch is enabled.
NOTE : Only usable via the M&C