Ed--

I have all of the suggested settings below, though I have been
playing with different values for retry interval, # of retries,
and delay to determine if this would change anything. So far,
no luck.

With no RTS/CTS or DTR/DSR lines, it did not make sense to
have any of those boxes checked.

The interface is based on one that I found on the web, which
was in turn based on one in the ARRL Handbook. I am using an
RS-232 chip with two Tx and two Rx sections. Wiring is as
follows:

- Radio to TTL Tx1, Tx2, and Rx1
- Computer to RS-232 Tx1 and Rx1
- Other devices to TTL Rx2
- RS-232 Tx2 wired to Rx2

Also, I am using an external wall-wart to a 5v regulator,
so no power is being pulled from the RS-232 interface.

This design isolates the radio from the rest of the CI-V equip-
ment. I was having issues with the TTL signal being pulled to zero
volts when my radio and SteppIR were connected to the same Tx
and Rx inputs when I had the radio set to transceive on the
CI-V line.

Eric

<snip>

> 
> The port, baud rate, and whether you are using RTS or DTR to power your
> interface should be the same in both.
> 
> You need to have Commands are echoed checked. Some users check RTS/CTS
> flow control, if you have, uncheck it.
> 
> Set retries to 2, retry interval to 50, and write delay to 10.
> 
> Whose design did you follow for the CI-V interface ? I've seen just
> about all ot them. They tend to be basically the same.
> 
> Ed W3NR
> 
> PS: There are no net police on this list....hi
> 

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