Appendix B - Serial Interface Specifications
Apollo CNX80 Installation Manual
560-0982-00 Rev D
B-11
B.2.1.4 NavComm Data
The definition of the NavComm portion of the MapCom data output is as follows. This data output is
compatible with the SL30 or SL40 for sending frequency data to the comm or nav unit.
The comm data is output using the following format.
$PMRRC<msg_id><msg_data><chksum><cr>
$PMRRV<msg_id><msg_data><chksum><cr>
The checksum is computed by an 8 bit addition of the msg_id and msg_data characters, ignoring carry if
any. The resulting 8 bit checksum is converted to two ASCII characters by taking the upper and lower
nibbles, adding 30h to each, and placing the most significant character first in the data message.
B.2.1.4.1
Airport Ident Output
This message is used to output the selected airport ident.
Message Format
$PMRRC04tiiii<chksum><cr>
04 ..............message id
t .................list type, outputs a 1
iiii ..............ident, four character ASCII
Example Message
$PMRRC041SLE<space>99<cr>
Output ident of “SLE” for the following frequency information.
B.2.1.4.2
Frequency Data Output
This message is used to output the airport frequency information for the previously output ident.
Message Format
$PMRRC05tfmk<chksum><cr>
05 message
id
t
list type, input 1
f frequency
type:
0 = TWR, tower frequency
8 = CTF, common traffic advisory frequency
1 = GND, ground frequency
9 = DEP, departure
2 = ATS, for ATIS
: (3Ah) = FSS, flight service station
3 = ATF, air traffic frequency
; (3Bh) = RFS, for remote flight service station
4 = APP, for approach
< (3Ch) = UNI, for unicom
5 = ARR, for arrival
= (3Dh) = MF, mandatory frequency
6 = AWS, automatic weather station
> (3Eh) = CTR (Center)
7 = CLR, clearance/delivery
? (3Fh) = undefined, for other frequency types
mk frequency:
m = desired frequency in MHz in hexadecimal, where m = desired frequency - 30h , with the
desired frequency in the range of 118 to 136 MHz, or 162 MHz.
k = desired frequency in kHz where k = (desired frequency / 25 kHz) + 30h, with the desired
frequency in the range of 000 to 975 kHz in 25 kHz steps, or 0 to 39.
Содержание Apollo CNX80
Страница 1: ...Apollo CNX80 Installation Manual September 2003 560 0982 00 Rev D...
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Страница 30: ...General Information 1 20 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Страница 41: ...Installation Procedures Apollo CNX80 Installation Manual 560 0982 00 Rev D 2 11 Figure 2 3 CNX80 Dimensions...
Страница 106: ...Post Installation Configuration Checkout 3 34 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Страница 114: ...Periodic Maintenance 6 2 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Страница 133: ...Appendix D Interconnect Diagrams Apollo CNX80 Installation Manual 560 0982 00 Rev D D 1 APPENDIX D INTERCONNECT DIAGRAMS...
Страница 134: ...Appendix D Interconnect Diagrams D 2 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Страница 164: ...Appendix E Acceptable Aircraft by Evaluation E 2 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
Страница 166: ...Appendix F Optional Accessories Not Supplied F 2 560 0982 00 Rev D Apollo CNX80 Installation Manual NOTES...
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