NorthStar 951X Installation Manual - page 46
SECTION TWO - Installing the unit
Page 36
951/952 INSTALLATION MANUAL Revision B
DGPS ANTENNA
(cont’d)
No beacon signal (applies to all DGPS
antennas):
If the
BEACON RX SELF-TEST
reads
“
FAILED
:”
If the coax and antenna are okay and there
is 7.75 VDC:
•
Press the
key to display the
USER CUSTOMIZATION
screen,
then press the
menu key to display the
RECEIVER OPTIONS
screen: Here,
check that the
DGPS OPERATION
option is set to “
ENABLED
” and the
BEACON FREQ
option is set to
“
AUTO
,” and that the
BEACON
BAUD RATE
option is set to
“
AUTO
.”
•
Press the
key to access the
USER CUSTOMIZATION screen,
then press the
menu key to display the
SERVICE INFORMATION screen:
Here, check that the
BEACON RX
SELF-TEST
reads “
PASSED
.”
•
Check the coax and antenna for open/
short, and check for 7.75 VDC at the
UHF connector, under load.
•
The 8500-A board may be bad.
Table 3: Troubleshooting the GPS/DGPS antenna installation (continued)
Antenna
Symptom
Possible Solutions/Reasons