Serial Interface Specifications
66
Apollo GX50/60/65 Installation Manual
Frequencies used for VORs, which can also be found in the range of
108.10 to 111.95 MHz, will not be accepted in this message type.
Example message:
$PMRRV2331<Sp><Sp>><<chksm><CR><LF>
Identifier is “31 ”, indicating a runway, and the localizer frequency is 110.300 MHz.
D
ISTANCE
/S
PEED
/T
IME
M
ESSAGE
If an SL30 is connected to the GX with MovMap or MapCom output the following message
will be sent to the SL30.
$PMRRV41xxxxyyyzzz<CHECKSUM><CR><LF>
xxxx is the distance to the station in 0.1nm units
yyy is the ground speed in knots
zzz is the time to the station in minutes
This message is used to output the range, ground speed, and ETA decoded from an external
RNAV sensor (DME or GPS).
Message format:
“V” .................Message class. This is a VHF NAV message.
“41”................Message identifier.
rrrr ..................Range from DME station in 1/10
th
of a nautical mile units. The first two
digits are the 10s and 1s place of the range, and the last digit is the 1/10
th
s
place. This field may range in value from 0.0 NM (“0000”) to 999.9 NM
(“9999”). If the distance from the DME station is greater than 999.9NM,
the value should be encoded as “----”.
sss...................Ground speed with respect to DME station in knots. This field may range
in value from 0 knots (“000”) to 999 knots (“999”). If the ground speed
with respect to the DME station is greater than 999 knots, the value should
be encoded as “---”.
hmm ...............Time to station in hours and minutes. This field may range in value from
0 hours and 0 minutes (“000”) to 9 hours and 59 minutes (“959”). If the
time to the station is greater than 9 hours and 59 minutes, the value should
be encoded as “---”.
Example message:
$PMRRV410983055147<chksm><CR><LF>
Range from DME station is 98.3 NM, ground speed with respect to station is 55 knots, and the
estimated time to the station is 1 hour and 47 minutes.
Summary of Contents for Apollo GX50
Page 4: ...NOTES...
Page 8: ...Table of Contents iv Apollo GX50 60 65 Installation Manual NOTES...
Page 30: ...Installation 22 Apollo GX50 60 65 Installation Manual Figure 12 RS 232 Serial Connections...
Page 31: ...Installation Apollo GX50 60 65 Installation Manual 23 Figure 13 GX60 65 Comm Wiring Diagram...
Page 40: ...Installation 32 Apollo GX50 60 65 Installation Manual NOTES...
Page 50: ...Limitations 42 Apollo GX50 60 65 Installation Manual NOTES...
Page 54: ...Periodic Maintenance 46 Apollo GX50 60 65 Installation Manual NOTES...
Page 82: ...Serial Interface Specifications 74 Apollo GX50 60 65 Installation Manual NOTES...
Page 84: ...Full Stack Drawing 76 Apollo GX50 60 65 Installation Manual...
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