JP14-R-LP & JP14-Q-LP F
ALCOM
GPS R
ECEIVERS
V
ERSION
1.0.0
11 APPENDIX
11.1 How to set the target GPS receiver into power saving
modes?
By means of SiRFdemo software version 3.81 from SiRF the user is able to configure
this operation mode with desired setting.
The input message is accepted if the GPS receiver operates in the NMEA mode, else
the input message will be ignored. The commands above cannot be implemented if
the target receiver operates in the SiRF Binary mode.
In order to set the receiver into the ATP or PTF mode via input messages, start the
SiRFdemo software version 3.81, select the COM port where GPS receiver is connected
and the baud rate to 38400 bps, and then open the COM port. If the receiver is
operating in SiRF binary mode, switch it to the NMEA mode, select
Switch to NMEA
protocol
from the
Action
menu of main window. After the receiver has obtained a GPS
fix, it can be set in the ATP or PTF mode. To do this, open
Action
menu from main
window and start
Transmit Serial Message ….
On the appeared dialog box select
NMEA
… protocol from the
Protocol Wrapper
option and type the following command
onto the memo field as shown in the Figure 14:
PSRF107,1,400,2000,60000,60000,1
(
sets the target receiver into the ATP mode.
Excluding $-sign and checksum)
After the message is correctly typed, send the defined message to the target unit by
clicking the SEND button. The target device responds with
Acknowledged …
if the
target unit accepts the sent message.
Figure 14:
Transmit a NMEA message to the target unit.
To set the target receiver back to the full power mode just transmit the following
message:
PSRF107,0,0,0,0,0,0
//
sets the target receiver back to full power mode
For more information, how to send the SiRF Binary or NMEA messages to the target
unit, please refer to the SiRFstarIII message set specification available in the section
“Support/Downloads/Documentation/SiRF/SiRFmessages_SSIII.zip”
at
FALCOM
homepage.
This confidential document is the property of FALCOM and may not be copied or circulated without permission.
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