Apollo SL Manual de instalación descargar pdf (Pagina 59)

Serial Interface Specifications

Apollo SL50 / SL60 Installation Manual

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

4 = APP, for approach < (3Ch) = UNI, for unicom

5 = ARR, for arrival = (3Dh) = MF, mandatory frequency

6 = AWS, automatic weather station > (3Eh) = CNT, 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.

Example Message

$PMRRC0511IT64<cr>

The above example message outputs a ground frequency type, 121.900 MHz.

Remote VOR List

The following two commands work together in allowing remotely connected devices to

provide a list of VOR frequencies to the SL30. The remote device will send a sequence of

Remote VOR Input commands (message identifier 20). When all of the VOR Input

commands have been sent, the remote device should send a Remote VOR List Trailer

command (message identifier 21) to terminate the list. The transmitted list will not be

considered complete by the SL30 until it receives the trailer message. The unit will maintain

a single remote VOR list, so each list received will replace any previous list. There may be up

to twenty entries in the remote VOR list. Any entries past twenty will be ignored.

Remote VOR Input

This input is used to input VOR frequency data used for the remote recall function.

The data consists of five characters for the VOR station identifier followed by two characters

defining the VOR frequency.

Message format:

“V” ................ Message Class. This is a VHF NAV message.

“20” ............... Message Identifier.

1 2 ... 54 55 56 57 58 59 60 61 62

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Apollo SL Manual de instalación Pagina 59