
Commands
Chapter 5
EuroPak-15ab Receiver User Manual Rev 1
69
5.3.16
STHRESHOLD
Control Signal Thresholds
This command controls signal acquisition and steady-state-lock signal thresholds. The
sigchan, acqui, lock
and
crosscorr
fields must have values. They set the thresholds for the specified signal channel.
See also
Table 55
on
Page 122
for the mapping of signal channels.
When you change this command, the selected channel loses lock and the locktime for its tracking satellite
is reset to zero.
Syntax:
Message ID: 803
Example:
STHRESHOLD 0 35 20 35
STHRESHOLD
SIGCHAN
ACQUI
LOCK
CROSSCORR
Field
Field
Name
Valid Values
Description
Format
Binary
Bytes
Binary
Offset
1
header
This field contains the
Abbreviated ASCII
command name. See
Section
4.1
on
Page 34
.
H
0
2
sigchan
0-31
The parameters should be applied
to this signal channel.
Ulong
4
H+20
3
acqui
25-80
Acquisition power threshold in
dBHz.
ULong
4
H
4
lock
10-80
Steady-state tracking lock
threshold in dBHz.
ULong
4
H+4
5
crosscorr
a
a. The receiver does not have cross-correlation functionality at this point even though the command
requires a value.
10-80
Specifies the cross-correlation
power threshold in dBHz, at which
point, the checks are performed.
ULong
4
H+8