ICOM IC35 TO PC

[VE7ABC]

I recently picked up an ICOM IC735 as a backup radio, and I want to mate it to my PC for logging and rig control.  The software I use all show the 735 in their rig listings.
A couple of questions:
1: Any recommendations for the rig to computer interface (not the ICOM unit as they are really hard to find).
2: Any information on to baud rate etc for the 735.

Also, is there an ICOM users group (list).  I'm a member of the Yaesu Group on Contesting.com.

Thanks to all and any information.
Graham
VE7ABC

[NA4IT]

For a computer with a USB port, check out:
http://www.kawamall.com/pd_1x_icomusb2stusa.cfm

For a computer with a 9 pin serial port, try:
http://www.kawamall.com/pd_program.cfm

[W9GB]

There is an Icom IC-735 Yahoo Group.
http://groups.yahoo.com/group/IC-735/

1: Any recommendations for the rig to computer interface (not the ICOM unit as they are really hard to find).

Icom uses the CI-V interface (2-wire serial network "bus" developed by Icom in early 1980s).

DF4OR: Icom CI-V Information
http://www.plicht.de/ekki/civ/

To connect the Icom CI-V bus line to a computer (RS-232) you need a LEVEL CONVERTER,
which converts the +/-12V of the RS-232 interface to 0V/+5V of the open collector bus line.
ICOM offers such a device, called the CT-17 (which you referenced).

For UNIVERSAL SERIAL BUS (USB), Level Converters are available from:
Silicon Labs and FTDI.  FTDI has BEST support for OS (Windows, Linux, OS/X, iOS, AndroidOS, etc.) Driver support.

There are several designs to build your own (DIY) converter,
the schematics are all fairly simple (and cheaper).
Here is a listing of various RS-232 and USB approaches:
http://www.plicht.de/ekki/civ/civ-p2.html
K6XX approach
http://www.k6xx.com/radio/icbsciv.pdf
==
w9gb

[AC4WY]

I'm not overly familiar with the 735, but generally speaking, you don't need an interface if all you want to do is control it with CAT commands, not run PSK31, etc. What you will need is an appropriate cable, usually a USB - serial one with the correct iCom connector. Check eBay.