User manual

o Parameter 2
 0: not registered, ME is not currently searching a new operator to register to
 1: registered, home network
 2: not registered, but ME is currently searching a new operator to register to
 3: registration denied
 4: unknown
 5: registered, roaming
o If the desired response is not received please discuss the programming of the SIM card
with your cellular service provider.
 If the desired response is received but there is still an issue then the GPRS Activation needs to be
verified.
o Click on the Verify GPRS Activation button.
o The GPS-206 response will be “$NETIP:” followed by 3 IP Addresses. For example, the
GPS-206 should return something similar to this:
$NETIP: "166.214.220.151", "066.102.163.232", "066.209.010.202"
o If AT$NETIP returns all zeros, send the following command: AT$CGEER. This can be
done by typing the command into the “Command to send” field in the Other section on
the Commands tab. There are three common responses:
 $CGEER: no PDP reject cause (Everything should be working OK)
 $CGEER: requested service option not subscribed (APN is incorrect or SIM has
not been enabled for data mode.)
 $CGEER: user authentication failed (username and/or password is incorrect.)
o If these three IP Addresses are not returned received please discuss the programming of
the SIM card with your cellular service provider. The information form the CGEER
command may assist the carrier in determining the cause of the issue.
A2.3 Verifying the GPS-206 has Acquired a GPS Satellite Fix
To verify that the GPS-206 has acquired a GPS Satellite fix follow these steps. Please note that it does
take a few minutes for the GPS receiver to acquire a fix the first time. After that it should acquire a fix
fairly quickly.
 Is the antenna attached?
 Does the antenna have a clear view of the sky? The GPS-206 cannot establish a GPS fix if the
antenna is inside a building or if the sky is obscured by trees, buildings, tunnels, etc. It is also
quite difficult for it to establish a fix if the antenna has only a partial view of the sky (i.e. it is near
a window).
 In the DP-1000S, select the Commands tab. This selection is only displayed when the software is
in Advanced Mode.
 Click on the “Read GPS” button.
 The GPS-206 will reply in the communications window. If you do not get a reply from the GPS-
206 verify that has power and that the correct serial port is selected in the software.
 GPS-206 response: the GPS-206 responds with a series of sentences that are produced by the
internal GPS receiver. Of particular interest is the “$GPRMC” sentence which should be the next
to last sentence that is produced.
o “$GPRMC,,V,,,,,,,,,,N*53” is a sample of an invalid sentence.
o “$GPRMC,042159.00,A,2835.1039,N,08118.3645,W,000.0,000.0,090407,03.7,W,A*03”
is a sample of a valid sentence.
o For information on the “GPRMC” sentence please search the internet. Entering “GPRMC
Sentence”, without the quotes, into your favorite search engine should return the desired
results.
© CES Wireless Technologies Corp – 2011 Page 21 of 23