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[RTTY] Help with keeping RF out of PC

To: <rtty@contesting.com>
Subject: [RTTY] Help with keeping RF out of PC
From: "Marco Spalluzzi" <marco.spalluzzi@orobiacom.it>
Reply-to: marco.spalluzzi@orobiacom.it
Date: Tue, 11 Jan 2005 11:42:36 +0100
List-post: <mailto:rtty@contesting.com>
Hi Peter, if it's an rf related problem going into the pc, you can put some
little isolation transformers on the soundcard in and out wires, to isolate
it from radio.
Note that if you use fsk, you need just the "in", so less wires used, less
probability that something can go wrong...
In the N1MM's site, in the interface section, it's recommended to do like
this also for that reason.
Also, try to simulate a transmission, or really transmit into a dummy load
with 0 power, so you can understand if it's rf causing that, or a sort of
conflict between mmtty (under n1mm) and the operating system.
Marco - IK2XSL.

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