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and where 'c' has the following significance:
c = 0 or is missing means no ROT
c = 1 ROT with 8s average
c = 2 ROT with 16s average
c = 3 ROT with 32s average
The form of the transmitted sentence is:
$HFROT,zxxx.x,A*cc<CR><LF>
c = 4 ROT with 64s average
The form of the transmitted sentence is:
$HEROT,zxxx.x,A*cc<CR><LF>
(note the E)
and where z = sign as follows:
+ (or missing) turning to starboard (i.e. heading value is
increasing)
- turning to port (i.e. heading value is decreasing)
and
cc
= checksum
xxx.x
= Rate of Turn in degrees per minute
NOTE:
The HEROT (or HFROT) sentence is transmitted every 2s
regardless of the sentence rate set using the TXP command
5.2.5
$PATC,IIHDG,DHD,ddd.d<CR><LF>
Set the internal filtering:
('damping')
Valid range for d is 0 to 100.0%
