Specifications

114 Z-Family Technical Reference Manual
The return message is a free form format. A typical response is:
TIME: 03:24:24 UTC
LOCKED: 23 22 17 06 30 10 26
CA S/N 50 46 54 53 43 43 44
P1 S/N 48 00 52 51 36 00 00
P2 S/N 44 00 48 47 38 00 00
After a cold start it can take the recevier up to 12.5 minutes to obtain UTC time; during this period,
GPS time is displayed in the TIME field.
SVS: Satellite Selection
$PASHS,SVS,c1c2c3.....c32
Select SVs that the receiver attempts to acquire, where:
c = Y, SV is used (default).
c = N, SV is not used.
Up to 32 SVs may be selected. They are entered in order of PRN number. If fewer
than 32 are specified the rest are set to N. Only the characters Y and N are accepted.
Example: Attempt to acquire SV 1-9; do not acquire 10,11; acquire 12, 13; do not
acquire 14-32
$PASHS,SVS,YYYYYYYYYNNYYNNNNNNNNNNNNNNNNNNN
<enter>
Table 6.49: STA Message Structure
Return
Parameters
Description Range
TIME Current UTC time in hours, minutes, & seconds (or GPS
time if GPS is indicated instead of UTC)
hh:mm:ss
LOCKED PRN number of all locked satellites 1-32
CA S/N Signal to noise ratio of the C/A observable in dB Hz 30-60
P1 S/N Signal to noise ratio of the L1 P-code observable in dB Hz 30-60
P2 S/N Signal to noise ratio of the L2 P-code observable in dB Hz 30-60