TM 5-6675-318-14
Table 4-21. CODE DESCRIPTIONS - Cont
O -
Expected data not received from communications link. Occasional display of
this code is normal.
P - Power failure occurred.
S - S a t e l l i t e a l e r t d a t a f r o m t a p e i s i n s u f f i c i e n t.
T - Tracking error detected. A satellite that was predicted to be available
could not be tracked.
U - Oscillator drift in 150 MHz receiver.
V - Oscillator drift in 400 MHz receiver.
X - Satellite alert data on tape cassette is older than 90 days and cannot be
used.
Code 17, Display Test Pattern
Enter code 17 to test all characters in the display. Every segment of every
character is displayed.
Code 18, Display Number of Alerted Satellites
Enter code 18 to display the number of different satellites for which the MX 1502
h a s s a t e l l i t e a l e r t d a t a.
NOTE
When the code 18 value is less than the code 19 value, the MX 1502 will
a u t o m a t i c a l l y s e a r c h f o r t h e a d d i t i o n a l s a t e l l i t e s .
Code 19, Display and/or Enter Number of Satellites Desired
Enter code 19 to display or enter the number of satellites from which to gather
data. Power consumption is reduced between satellite passes when the number of
a l e r t e d s a t e l l i t e s ( c o d e 1 8 ) i s e q u a l t o t h e n u m b e r o f s a t e l l i t e s d e s i r e d . I n t he
reduced power mode, full power is used only when predicted acceptable satellite
passes are occurring.
4-114
