F60 – GPS Receiver Satellite List
F60 – GPS Receiver Satellite List
Use function F60 to display the identification number and signal strength of tracked or
current satellites. ‘Tracked’ means a satellite’s signal is being received and interpreted by the
receiver (or that the XL-GPS has GPS data that suggests this satellite should be visible to
the antenna).
GPS satellite are grouped into the following categories:
•
Tracked: the XL-GPS is receiving the GPS signal, but isn’t using it to calculate time
and position.
•
Current: the XL-GPS is using the satellite’s GPS signal to calculate time and position.
•
Bad: the GPS satellite is transmitting information that it has been removed from
service.
•
Rejected: the XL-GPS Receiver’s TRAIM feature has detected anomalous signals
from this satellite and has quarantined it from the timing solution for 12 hours.
GPS satellite signal strengths are reported in units of dBW. Signals below -170 dBW (e.g., -
171 dBW) are not usable by the GPS receiver.
See “GPS Signal Strength Requirements” on
page 23.
If you’re using the keypad interface, use the UP/DOWN ARROWs to scroll through the list of
satellites.
Command Line
Use Serial Function F60 to request a list of all, current, and tracked satellites. To display the
list, enter a string using the following format:
F60<S><TYPE><CR>
XL-GPS responds with approximately 32 lines that use the following format:
F60<S>prn<NN><S><STATE> tracked current<LEVEL><CR><LF>
where:
F60
= ASCII string indicating function F60.
<S>
= ASCII space character one or more.
<SEP>
= One or more separator characters; either space, comma or tab.
<TYPE>
= ALL, CURRENT, TRACKED, BAD, or REJECTED.
098-00116-000 Rev. A
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Summary of Contents for XL-GPS
Page 1: ...XL GPS Time Frequency Receiver User Guide CD Part Number 098 00116 000 Rev A 5 May 2010 ...
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Page 214: ...IRIG IRIG Standard Format A 098 00116 000 Rev A Page 200 of 221 ...
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Page 216: ...F World Map of Time Zones 098 00116 000 Rev A Page 202 of 221 ...
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Page 220: ...I Certificate of Volatility See the following document 098 00116 000 Rev A Page 206 of 221 ...
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Page 225: ...J Declaration of Conformity See the following document 098 00116 000 Rev A Page 208 of 221 ...