ashtech DG16 Reference Manual page 151

$PASHQ,LPS,[c1]
This command queries the current loop tracking parameter settings, where c1 is
the optional port designator for the output of the response.If a port is not specified,
the receiver sends the response to the current port.
$PASHR,LPS
The response message outputs in the format:
$PASHR,LPS,d1,d2,d3*hh
Table 6.30 outlines the parameters.
Parameter
d1 Third-order ratio setting for the carrier loop:
• 0: Indicates a ratio of zero; i.e., the third-order ratio is
• 1: Indicates a ratio of 0.1; suitable for low acceleration
• 10: Indicates a ratio of 1.0; suitable for high
d2 Carrier loop parameter:
• 1: This setting indicates a noise bandwidth of 0=10;
• 2: This setting indicates a noise bandwidth of 0=25;
• 3: This setting indicates a noise bandwidth of 0=50;
d3 Code loop parameter:
• 1: Indicates noise bandwidth of 0=1.0; suitable for fast
• 2: Indicates noise bandwidth of 0=0.5; suitable for
• 3: Indicates noise bandwidth of 0=0.1; suitable for
Receiver Commands
Table 6.30. $PASHR,LPS Format
Description
disabled
rates
acceleration rates
suitable for static, very low phase noise conditions
suitable for low dynamic, low phase noise conditions
(< 2g when d1=1; < 20g when d1=10)
suitable for high dynamic, medium phase noise
conditions (< 6g when d1=1; < 100g when d1=10)
range availability (5 sec.), medium range noise
conditions
medium range availability (10 sec.), low range noise
conditions
slow range availability (50 sec.), very low range noise
conditions
Range
0, 1, 10
1, 2, 3
1, 2, 3
131