VHF / HF X-Gate Project

my interpretation of the Barrett Radio 2062 Crossgate
HF port has syllabic squelch for better detection of SSB speech signals
VHF port has DTMF decoder for control commands
Raspberry Pi running a Python application handles control of HF radio via NMEA and of talkthrough functions etc. via GPIO
DTMF commands for control of Icom IC-M710 : Frequency, Mode (USB/LSB/AM), Power (20W/50W/100W), ATU Tune cycle
DTMF control of talk-through (HF transceive) or monitor (HF Receive) functions
Morse Code (CW) revertives over VHF port to read back parameters such as HF radio frequency, mode, power etc.
Built in Webserver for status display http://gm4slv.plus.com:42109/
Python code is ~~here on GitHub~~
X-Gate will run in dumb talkthrough mode if Raspberry Pi controller is removed
Operation of uplink port in full duplex on VHF and UHF is possible, to enable access regardless of state of talkthrough.

DTMF Commands

Function	Command	Comment
Log on	0#
Log off	99#
Set Frequency	*1fffff#	ffff.f kHz
Set Channel	*1xxxx#	mem chan xxxx
Set Mode USB	*21#
Set Mode LSB	*22#
Set Mode AM	*23#
Set TX Power Low	*41#	15W
Set TX Power Medium	*42#	50W
Set TX Power High	*43#	100W
QSY Down 0.5kHz	*5#
QSY Up 0.5kHz	*6#
Monitor HF	*7#	5 seconds
Monitor HF	*7xx#	xx seconds
Monitor HF	71#	(Duplex Mode) Continuous Monitor ON
Monitor HF	70#	(Duplex Mode) Continuous Monitor OFF
ATU Tune	*8#
Status	*9#
S-Meter	*91#
Full Status	*93#
Talkthrough ON	*01#
Talkthrough OFF	*00#

Barrett 2062 Brochure	2062_cross_gate_brochure_english.pdf
Barrett 2062 Manual	barrett-2062-hf-vhf-uhf-crossgate-operation-manual-12.pdf

—- John Pumford-Green Wed May 4 17:22:37 2022

Page Updated : 06/03/25 06:49 GMT