>On Tue, 2 Dec 1997 15:07:39 -0800 (PST), you wrote:
>> Let me guess that you were using a parallel port to key the rig.
>> For stubborn cases of rfi to keying lines, I find the easiest
>> solution is to use a serial port instead. You can use one
>> serial port for both rig control and keying. For some reason
>> the serial ports are more immune to rf.
>This is a true statement. Since the serial port puts a
>negative voltage across the base emitter junction, the noise
>immunity is much higher than the parallel port.
However, you may have other problems such as I do. I can't use the
serial port for keying or my rig control falls apart. I must have the
full CTS RTS protocol or I have problems. Just be sure you realize
that this is a possibility. I am lucky to not have an RF problem but I
am running barefoot. I can get trouble if the cable is in certain
spots in the shack.
Gil Baron W0MN email@example.com
Bailar es vivir" pgp2.6 key http://www-swiss.ai.mit.edu/~bal/pks-toplev.html
"Cuatro caminos hay en mi vida. Cual de los cuatro sera el mejor"
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