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If the receiver is not (for some reason) receiving differential corrections or if none of the
ports has been configured to receive differential corrections, the field
LQ
will either be empty or it
will look like this:
100%(999,0000,0000)
.
Currently the values for this field are obtained from the [MS]
message.
•
Receiver time
shows the receiver’s current
time within day. This value is taken
from the message [~~]. For more information about [~~], see the GRIL Reference
Manual.
Currently the message [~~] reports the
time within day
in the GPS time scale
only.
•
Receiver date
shows the receiver’s current date as specified in the corresponding
[RD] message.
•
Clock offset
describes the time derivative of (T
r
– T
rr
), where T
r
designates the re-
ceiver time, T
rr
designates the receiver reference time. For more information about T
r
and T
rr
, see the GRIL Reference Manual. This parameter is obtained from the [DO]
message and is expressed in parts per million (ppm).
•
Osc. offset
is derived from the message [OO] and it is expressed in ppm. The pa-
rameter describes the difference between the VCO’s nominal and quiescent frequen-
cies.
•
Tracking time
is the time elapsed since the last
complete loss-of-lock event in the
receiver’s C/A channels as specified in the corresponding [TT] message.