usb Icom computer interface

[K9ZF]

Hi All,
I find myself needing a computer interface for my Icom 746 [ie: ct17/ civ].  Long ago I built one of the "$10 icom computer interfaces" from the article here on eham.  I was preparing to build another, but I would really like to have one that directly uses the usb port.  Has anyone designed one of these?

I am intending to get a usb to serial port adapter, but I will end up needing more than one, and I hear that many are "hit and miss" if they will work with some applications.  So an interface to work directly from usb would be nice.  [my new laptop doesn't have serial ports].

Anyway, I don't mind building my own but I'm not up to designing it myself.  If you know of a published article along this line I would appreciate the help!

Comments appreciated!

73
Dan
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K9ZF /R no budget Rover ***QRP-l #1269
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[K7PEH]

MicroHAM has what you want.  Go to www.microham.com and put your order in for the USB Interface II product that they have.  I have their version 1 product and it works great.  The version II product comes with more features though.

[N6AJR]

w2eny.com  has them for about $30

[N4ZOU]

I wrote an article right here on eham.net a couple of years ago.
http://www.eham.net/articles/8192
As for the people claming you need an extra chip and the added complexity, my set up is still working just fine after two years!
As for the USB board, check www.mouser.com as the price has dropped and the latest boards are better. Just download the free datasheet for all the information you need to build one. There even easier than the old $10 rs-232 to TTL interface projects!