[WriteLog] Icom CIV Interface

[Mel Martin]

Check out the Dallas Semiconductor DS275 or DS276. You can build a simple
circuit with those that should work very well... The DS276 lets you steal a
microwatt or two from the data lines... so you can make it self powered
without stealing RTS or DTR power. Or you can build a circuit with the
MAX232... but you will need a supply voltage.

----- Original Message -----
From: "Jim Brown" <jim at audiosystemsgroup.com>
To: "WriteLog Reflector" <writelog at contesting.com>
Sent: Friday, August 06, 2004 10:24
Subject: [WriteLog] Icom CIV Interface


> I need  a couple of CIV interfaces for WriteLog. It is important that I be
able to key the radio via the
> DTR port. Most of the circuits I see, as well as the commonly available
simple interfaces, get their
> power from the DTR line, so won't work.  What simple circuits are
available to solve this problem? My
> need is for a single computer serial port to a single radio. I would
really like to find something that I
> can build with a couple of transistors, resistors, and diodes.
>
> Jim K9YC
>
>
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