ashtech DG16 - CMB: Channel Measure Block

Raw Data Commands 187
Raw Data Commands
CMB: Channel Measure Block
$PASHS,RAW,CMB,c1,s2,[f1]
This command enables or disables the channel measure block (CMB) message,
where c1 is port A, B or C (optional port), s2 is ON or OFF, and f1 is the optional
numeric output interval setting supporting a range of 0.05 to 999 seconds,
depending on the measurement update rate option installed.
$PASHQ,CMB,[c1]
This command queries for the CMB message.
c1 is the optional port designator for the response. If a port is not specified, the
receiver sends the response to the current port.
$PASHR,CMB
The message is output in the format:
$PASHR,CMB,<structure>
Table 7.3 outlines the data string format.
Table 7.2. $PASHR,CMB Data String
Binary Type Bytes Content
unsigned int 2 The number of bytes remaining in the message. This value
varies depending on the number of channels reported in the
message.
char [2] 2 The version number for this message. For example 2.01. The
first byte specifies the major part (2) and the second byte
specifies the minor part (.01).
long 4 The time value for the internal receiver counter in milliseconds
modulo one week.
int 2 Satellite PRN number associated with the data that follows.
Values 1 to 32. 0 indicates that the channel is not used. This
repeats for each channel.
int 2 • LBS bit0 = TRUE: the carrier loop locked at the instant the
phase value was harvested.
• LBS bit1 = TRUE: carrier phase lock indicator continuously
locked since the last report.
This repeats for each channel.
long 4
The raw doppler from the carrier loop (HZ*2
12
/100).
This repeats for each channel.