128 G12 OEM Board & Sensor Reference Manual
For a given channel expecting more than one block of data, when one of them is not yet available,
the warning flag is set to 7 and the rest of the block is zeroed out.
This message is output for those satellites with elevation equal to or greater than the elevation
mask, and only if the number of locked satellites is equal to or greater than the minimum satellite
mask.
MCM: Missile Application Condensed Measurement Record
(MACM) - G12 HDMA Users Only
This message optimizes the data output and data transmission in missile
applications requiring high speed data output with communications bandwidth
limitations. Although this message is intended for HDMA users, it is available on all
G12 products.
$PASHS,RAW,MCM,c1,s2,[f3]
This command enables or disables the missile application condensed
measurement record, where c1 is the output port (A or B) for the response message.
s2 is ON (enable) or OFF (disable), and f3 is the optional message interval in
seconds ranging from 0.05 to 999 seconds. If the command is set without an
interval, the G12 uses the period set by the $PASHS,RCI command If the
$PASHS,RCI command is issued after this message period has been set, the period
resets to the RCI setting.
Examples
Enter the following command to enable the missile application condensed
measurement record through port A at the current RCI setting:
$PASHS,RAW,MCM,A,ON
long [smoothing] 4 32 bits where 31-24 are the smooth_count, unsigned, and
normalized, representing the amount of smoothing specified in the
$PASHS,SMI command:
• 0 - Unsmoothed
• 1 - Least smoothed
• 255 - Most smoothed
Bits 23-0 are smooth_corr, where bit 23 (MSB) is the sign and the
LSBs (22-0) are the magnitude of correction in centimeters
checksum 1 Checksum, a bytewise exclusive OR (XOR) of all bytes from
sequence_tag (just after header) to the byte before checksum
Total Bytes: 37
Table 4.62. $PASHR,MCA Data String (Continued)
Field Bytes Content
G12RevD.book Page 128 Tuesday, April 2, 2002 4:33 PM
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