Astra A5040 Manuel de l'utilisateur - Page 13

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b=0 : direction sentence will NOT include checksum nor unit ID serial number.

e.g.

$HCHDG,hhh.h,,,,<CR><LF>

b=1 : direction sentence will include a checksum.

e.g.

$HCHDG,hhh.h,,,,*cc<CR><LF>

b=2 : include the serial number.

e.g.

$HCHDG,hhh.h,,,,*ssss<CR><LF>

and where 'c' has the following significance:

c = 0 or is missing means no ROT

c = 1

c = 2

c = 3

c = 4

The form of the transmitted sentence is:

$HFROT,zxxx.x,A*cc<CR><LF>

Except when a=4 when the form is

$HEROT,zxxx.x,A*cc<CR><LF>

and where z = sign as follows:

+ (or missing) turning to starboard (i.e. heading value is increasing)

and cc = checksum

xxx.x = Rate of Turn in degrees per minute

5.9 Enable LED:

$PATC,IIHDG,ELED<CR><LF>

Replies with the standard acknowledge sentence ($PATC,HCHDG,ACK<CR><LF>).

Default: LED enabled.

5.10

Disable LED:

$PATC,IIHDG,DLED<CR><LF>

Replies with the standard acknowledge sentence ($PATC,HCHDG,ACK<CR><LF>).

Note : LED will be automatically enabled during calibration process.

ROT with 8s average

ROT with 16s average

ROT with 32s average

ROT with 64s average

turning to port (i.e. heading value is decreasing)

(cc is the checksum)

(ssss is the unit's serial number)