Garmin Apollo SL40 Installation Manual page 34

Serial Data Specifications
S S F
ET TANDBY
Message Format
$PMRRC01mka<chksum><cr>
01....... message id
mk...... standby frequency:
m = desired frequency in MHz in hexadecimal, where m = desired frequency -
30h , with desired frequency in range of 118 to 136 MHz, or 162 MHz.
k = desired frequency in kHz where k = (desired frequency / 25 kHz) + 30h, with
desired frequency in range of 000 to 975 kHz in 25 kHz steps, or 0 to 39.
a......... transceiver function:
N = normal receive operation
M = enable monitor function
0 = no change
Example Message
$PMRRC01LFM40<cr>
Set the standby frequency to 124.550 MHz, monitor function selected
R I
EMOTE DENT
This message is used to input a new ident, and reset the remote frequency input pointer.
Message Format
$PMRRC04tiiii<chksum><cr>
04....... message id
t.......... list type, input 1
iiii ...... ident, four character ascii
Example Message
$PMRRC041SLE<space>99<cr>
Set the remote frequency ident to "SLE."
R F
EMOTE REQUENCY
This message is used to input frequencies for the remote recall function. Up to 10 frequencies
are accepted.
Message Format
$PMRRC05tfmk<chksum><cr>
05....... message id
t.......... list type, input 1
f ......... frequency type:
0 = TWR, tower frequency
1 = GND, ground frequency
2 = ATS, for ATIS
3 = ATF, air traffic frequency
4 = APP, for approach
28
REQUENCY
I
NPUT
L I
IST NPUT
8 = CTF, common traffic advisory frequency
9 = DEP, departure
: (3Ah) = FSS, flight service station
; (3Bh) = RFS, for remote flight service station
< (3Ch) = UNI, for unicom
Apollo SL40 Installation Manual