User Guide

25
TROUBLESHOOTING
Problem Reasons Solutions
No Position
output but
timer is
counting
Weak or no GPS signal
can be received at the
place of HI-204
III unit
Place the HI-204 III under an
open space, then, press
'Reset'
At outdoor space but
GPS signal is blocked
by building or car roof
To try again, go to outdoor and
press 'Reset' or connect
external antenna on the side
of HI-204
III to improve the
poor GPS signal
Execute Fail Wrong CPU type PocketPC support multiple
typs of CPU. Make sure you
download the correct testing
(or mapping software). You
can use the PDA smart
menu's 'setting' function to see
wether the CPU type is correct
or not.
Can's open
COM port
The PS/II connector
did not insert correctly
or some other
application is the COM
port
Plug HI-204 III connector firmly
or close all other application
that occupied the COM port
Can not find
HI-204
III
Poor connection Check HI-204 III if Plug firmly
No signal No action for few
minites may causes
PocketPC into the
power saving mode. It
could close the COM
port at the same time.
Close all applications and
exacute it again to re-open the
COM port
Weak or no GPS signal
when using HI-204
III
indoor or inside the car.
Put HI-204 III to an open space
or car roof, then, press the
Reset button
APPENDIX B
DEFAULT VALUES
The product has the following factory preset default values:
Datum:000 (WGS-84)
NMEA Enable Switch:GGA ON
GLL ON
GSA ON
GSV ON
RMC ON
VTG ON
Checksum ON
Baud Rate:4800 Baud
Elevation Mask:5 degrees
DOP Mask:DOP Select: Auto
GDOP: 20
PDOP: 15
HDOP: 8
Receiver Operating Mode:Normal Mode (without 1PPS)
Commands can be issued to the HI-204L to change the settings of the
receiver. The new settings will remain effective on next power-on as
long as the on-board rechargeable backup battery is not discharged.
After the backup battery is discharged, factory preset default settings
will be used.