Lps: Loop Tracking - ashtech GG Surveyor Reference Manual

Type
short
total
characters
None of the above ionosphere data is computed by the receiver; it is all obtained from
the frame data transmitted by the satellites.

LPS: Loop Tracking

$PASHS,LPS,x,y,z
Set user-selectable third-order loop tracking parameters, where x is the ratio of the
carrier loop, y is the carrier loop parameter, and z is the code loop parameter (see
$PASHQ,LPS below for more information). Loop setting allows you to select the
tracking loop parameters based on application. The carrier and code loop parameters
are set independently. Firmware uses default values until you select another setting.
The user settings are saved in battery-backed memory and are used until a new setting
is selected, or the memory is cleared. The default is 10, 3, 1.
Example: Change loop parameters
$PASHQ,LPS,x
The associated query command is $PASHQ,LPS,x, where x is the optional output
port.
$PASHR,LPS
The response is in the form
where
x = 0-10 (ratio)
y = 1, 2, or 3 (option # for selecting carrier loop)
z = 1, 2, or 3 (option number for selecting code loop)
Loop setting values:
Command/Response Formats
Table 6.16: Ionosphere Data Format (continued)
Size
2 Checksum computed by breaking the structure into shorts, adding
them together, and taking the least significant 16 bits of the
result.
76
bytes
$PASHS,LPS,2,1,1<Enter>
$PASHR,LPS,x,y,z*cc
Content
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