GTR 200 works with AFS 5000?

[ssonixx]

Any ideas if the AFS units can tune the new GTR 200 COMM radios?

[Rob Hickman]

We have not found one to test yet, if it is like the SL40 it should work.

[ssonixx]

We have not found one to test yet, if it is like the SL40 it should work.

Rob:
Pulling from the GTR 200 install manual - RS-232 serial port message formats. This is foreign to me, but is this as you would expect?

APPENDIX B SERIAL INTERFACE SPECIFICATIONS
This appendix includes the interface specifications for the RS-232 serial port. The RS-232 port can be used
to input active and standby frequencies, and is used to input frequencies from a remote source, such as the
SL50 and 2001GPS. The interface format conforms to NMEA 0183 message format specifications.
The format of the RS-232 serial port is as follows:
Baud rate ........................................... 9600
Data bits ............................................ 8
Stop bits............................................. 1
Parity ................................................. none
The data format is as follows:
$PMRRC<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.1 RS-232 Inputs

B.1.1 Set Active Frequency
Message Format
$PMRRC00mka<chksum><cr>
00....... message id
mk...... active 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
$PMRRC00G4N29<cr>
Set the active frequency to 119.100MHz, normal receive mode. “G” = 119d - 30h = 77h -
30h = 47h, or an ascii “G”; “4” = 100 kHz/25 kHz + 30h = 4 + 30h = 34h, or an ascii “4.”

B.1.2 Set Standby Frequency
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

B.1.3 Remote Ident Input
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.”

B.1.4 Remote Frequency List Input
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 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) = not defined, do not use
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 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.
Example Message
$PMRRC0511IT64<cr>
Input a ground frequency type, 121.900 MHz.

B.1.5 Request Output Message
This message is used to request data output messages.
Message Format
$PMRRC06iidda<chksum><cr>
06....... message id
ii ........ requested message ident:
03 = software version message
dd....... set to 00
a......... set to 0
Example Message
$PMRRC060300059<cr>
This message requests the software version message to be output.

B.2 RS-232 Outputs

B.2.1 Transceiver Status
This message is used to output the current transceiver frequencies and status.
Message Format
$PMRRC01mkmkas<chksum><cr>
01....... message id
mk...... active frequency (first mk):
m = frequency in MHz in hexadecimal, where m = frequency - 30h , with
frequency in range of 118 to 136 MHz, or 162 MHz.
k = frequency in kHz where k = (frequency / 25 kHz) + 30h, with frequency in
range of 000 to 975 kHz in 25 kHz steps, or 0 to 39.
mk...... standby frequency (second mk):
m = frequency in MHz in hexadecimal, where m = frequency - 30h , with
frequency in range of 118 to 136 MHz, or 162 MHz.
k = frequency in kHz where k = (frequency / 25 kHz) + 30h, with frequency in
range of 000 to 975 kHz in 25 kHz steps, or 0 to 39.
a......... transceiver status:
R = normal receive
M = monitor selected
T = transmit enabled
S = stuck mic
s..........squelch test setting:
0 = automatic
1 = test selected
Example Message
$PMRRC01G4LFR0F0<cr>
The active frequency is 119.100 MHz, the standby frequency is 124.550 MHz, normal receive
function, automatic squelch selected.
This message is output once/second.

B.2.2 Software Version
This message is used to output the com software version.
Message Format
$PMRRC03vvvv<chksum><cr>
03 .......message id
vvvv ...software version
Example Message
$PMRRC03010024<cr>
The software version is 01.00.
This message is output once at power up and by request.

[Rob Hickman]

It should work with the EFIS.