TeraScan 1.5m Polar Satellite Tracking Antenna O & M Manual
85
5.2 A
NTENNA
M
ONITORING
5.2.1 Trackeye
To observe the motion of the antenna, the signal strength from the receiver, and the progress of the frame
synchronizer, enter the command:
%
trackeye full
chain
<Return>
The
trackeye
command should be run from a long 3-line window on the screen.
Display Format (Normal):
yyyy/mm/dd hh:mm:ss.sss azim elev head mo freq #lin S Sig fsync
The meaning of the list fields is as follows:
azim:
antenna azimuth command relative to the mounting of the antenna. If the antenna is
ship-mounted, this angle is relative to the bow of the ship.
elev:
antenna elevation command, absolute, in degrees.
head:
ship heading (if used) in degrees, True North.
mo:
motion of the antenna:
-
= no change (antenna is not tracking)
A
= antenna is ascending
D
= antenna id descending
* = antenna is tracking. No elevation change yet.
(The letter
R
precedes the motion if
autoalign
or
align
is running.
freq:
frequency in MHz of the
receiver.
# lin:
number of scan lines acquired in this pass by the frame synchronizer.
s:
bit sync switch data state:
N = Normal
I = Inverted
sig:
signal strength.
fsync:
frame sync status:
SEARCH
= searching for start of frame
LOCK
= locked to start of frame
Note:
To exit
trackeye
, enter Control-C.
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