ashtech HDS800, Reference Manual

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225
Integrating HDS800 into Your Application
Acquiring the
NTRIP Source
Table
After the $PASHS,NTR,PAR command has been sent and the
modem state has switched to INIT, you can ask the receiver
to get the source table from the caster.
NOTE: The modem INIT state is indicated on the receiver
front panel when the following icon (static) appears in the
lower line:
. The number of bars is proportional to the
strength of the signal received by the cellular antenna. You
can also use the $PASHQ,MDM to read this state.
Set the antenna height (for example a slant
height of 1.45 meters was measured):
NOTE: When a slant height is entered, you
also need to enter the antenna radius and
the ARP-to-SHMP vertical offset (negative
if ARP is below SHMP).
$PASHS,ANT, 1.45 , 0.0921 , -0.0516
$PASHR,ACK*3D
Enter the coordinates of the base:
$PASHS,POS, 4717.93777 , N ,
130.541864 , W , 87.007
$PASHR,ACK*3D
Set the modem and GPRS parameters
(PIN code, band, APN settings):
$PASHS,MDM,PAR,PWR,AUT,
PIN,
1234 ,BND, 1 ,APN, orange.fr ,
LGN, orange ,PWD, orange
$PASHR,ACK*3D
Set the modem in GPRS and TCP/IP
modes: $PASHS,MDM,PAR,PTC,1,IPT,0
$PASHR,ACK*3D
Turn on the modem (unless the modem has
been set in automatic power mode): $PASHS,MDM,ON
$PASHR,ACK*3D
Initialize the modem. Wait a few seconds
until the receiver can respond to this com-
mand.
NOTE: If the initialization fails, the message
$PASHR,MDM,INI,FAILED*7D is returned.
$PASHS,MDM,INI
$PASHR,MDM,INI,OK*7A
Enter the NTRIP caster parameters (see
example in the right column).
NOTE: The ADD field may contain either an
IP address or a host name. $PASHS,NTR,PAR,ADD,
83.167.123.12 ,PRT, 2101 ,LGN,
name ,PWD, password ,TYP,0
$PASHR,ACK*3D
Set the type of differential data sent to the
modem (port E): $PASHS,BAS,E, RT3
$PASHR,ACK*3D
Set the receiver to be a base transmitting
GPS data (+ GLONASS and/or SBAS
data):
$PASHS,CPD,MOD,BAS, 0
$PASHR,ACK*3D
Ask the modem to connect to the mount
point (e.g. NAN1):
NOTE: If you don’t know which mount point
to connect the modem to, see
Acquiring the
NTRIP Source Table below.
$PASHS,NTR,MTP, NAN1
$PASHR,ACK*3D
Action Command