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32 EuroPak-15a Receiver User Manual Rev 5
Chapter 4 Using Commands and Logs
POSITIONTYPE GPSL1
SDLLBW n 0.2 where n is for channel numbers 0 to 15 inclusive
SPLLBW n 15.0 where n is for channel numbers 0 to 15 inclusive
EXTERNALCLOCK DISABLE
4.1.1.2 Default Thresholds
For L1 GPS, L1 WAAS and L1 Galileo, the acquistion threshold is 38 dB-Hz, the tracking threhold is 22 dB-Hz
and the cross-correlation threshold is 36 dB-Hz.
For L5 GPS, L5 WAAS and E5a Galileo, the acquistion threshold is 36 dB-Hz, the tracking threhold is 22 dB-
Hz and the cross-correlation threshold is 36 dB-Hz.
4.1.1.3 Default AGC Modes
The AGC modes are set to
AUTO by default for all frequencies.
4.1.2 Determining the Current Command Settings
To determine the current command settings of a receiver, request an RXCOMMANDS log, which is described in
Section 6.3.8 on Page 88. This will provide a listing of all commands and their parameter settings. This log
provides the most complete information on receiver configuration.
For some commands, including COM and LOG, multiple parameter sets can exist. For example, the LOG
command can be entered with one set of parameters to enable logging of the PSRPOS log. It can then be
entered again with a second set of parameters to configure the EuroPak-15a to capture the RANGE log. When
the LOG command is entered the second time, the new parameter set does not overwrite the first, it exists in
addition to the first set.
4.1.3 Response Formats
The format of the response is dependent on the format of the input command. If the command is input as
Abbreviated ASCII, the output will be Abbreviated ASCII.
The Abbreviated ASCII response consists of a leading < followed by the response string, like the example
below:
<OK
4.1.4 Response Messages
The receiver is capable of outputting several responses for various conditions. Most of these responses are error
messages to indicate when something is not correct. Table 4 on Page 33 outlines the various response strings
and message IDs.