General Dynamics CG-1220, Operation And Maintenance Manual

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Operation
CG-1220 DTR 4-9

Status frames contain signal for the front panel and M&C interface.

Spectrum frames contain data for the SPECTRAL DISPLAY.

Monopulse frames, either on time or late, contain signal and error vector
data for monopulse mode. Monopulse used is the number of frames
transmitted out via the M&C monopulse interface. The other ones that
are not needed are discarded. "Late monopulse" increments each time
monopulse data is requested by or due to be sent to the ACU but a new
reading is not yet available. This may increment regularly in a high-
performance ACU and a narrow digital filter in the DTR, or when the ACU
requests each transmission (RATE = -1). On-time monopulse frames are
those that arrive before they are needed.

Bad footers are when a frame header is intact but the footer (or
intervening data) has been corrupted.

Unknown frames are when frames are out of synchronization or a frame
header has been corrupted.
 MESSAGE LOG displays the most recent events recorded in the system
message buffer. Pressing
[PAGE]
and
[SHIFT]+[PAGE]
or spinning the knob
scrolls the list;
[PREV]
exits.

DISPLAY VERSION
displays the current firmware version and configuration
information for the DTR.

CPU TASKS displays current CPU tasks, including task number, name, shell
type and activity

TROUBLESHOOT is a diagnostic tool to provide online assistance on the
current faults.
4.2.5 CONFIGURATION MENU
The Configuration menu [ CONFIGS] provides access to system parameters and
settings. The [ CONFIGS] menu provides the following:

COMM PARAMETERS

RECEIVER OPERATION

CONVERSION BANDS

BEACON SETUP (Only in Non-Monopulse units)
 MONOPULSE (ONLY in Monopulse units)

SYSTEM MEMORY

INTERFACE OPTIONS
4.2.5.1 COMM PARAMETERS

REMOTE CONTROL - This editor selects which port on the back panel is in
control when the DTR is in REMOTE mode. For remote M&C
communications, select Port1 or 2, which support serial protocols.