Icom Rig Interface by VE7IT
This project resulted from my frustration using commercial interface boxes between my
linux computer and the several models of Icom radios I own. This interface replaces an
Icom CT-17 level converter box, a rigblaster sound interface, a CW keying interface,
an isolation transformer for the line out audio from the computer soundcard and a
carrier or squelch detetction buffer. To keep the
cable clutter to a minimum and to eliminate a lot of connectors, most of the cables have
a hardwired connection to the interface box. The exception is the rig interface cable.
The rig interface cable was made in several versions to match up with the 8 pin round Icom mic
connectors and the newer RJ45 style mic connectors. The interface has RF bypassing on all
pines in and out of the box. The interface is powered from the 8 volt supply available on
all the Icom mic connectors.
- Transformer isolated audio paths
- 4 Led indicators ( COR, PTT, CW, CIV activity)
- Powered from radio (8v @10ma max)
- All signals bypassed for RF
- All signals buffered between radio and computer
- One interface provides rig control as well as PTT/COR/CW on one serial port.
- Icom radio of your choice.
- Computer and software of your choice.
- This interface built into an enclosure of your choice.
Eagle 4.1 Project File - IC706-IFa.sch(11k)
Eagle 4.1 Project File - IC706-IFb.sch(213k)
Cables Dwg - cables.png(38k)
Schematic Dwg - schematic.png(35k)
For linux ham applications, the following 3 packages are fantasic and work well together:
gmfsk - A multimode soundcard modem MFSK16, MFSK8, RTTY, Throb, PSK31, PSK63, MT63, Feldhell
xlog - A full featured log program for linux
hamlib - Ham radio rig control libraries