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M1BYT > IBM 23.01.05 11:24l 47 Lines 1998 Bytes #999 (0) @ WW
BID : 053332M1BYT
Read: GUEST DC9BM
Subj: Re: ibm monitor
Path: DB0FHN<DB0MRW<OK0PKL<OK0PPL<DB0RES<F6GGY<VE2HAR<VA2HAR<ON0AR<GB7FCR
Sent: 050123/1016Z @:GB7FCR.#16.GBR.EU #:31552 [Blackpool] FBB-7.03a $:053332M1
From: M1BYT@GB7FCR.#16.GBR.EU
To : IBM@WWW
M0JFE Opined with considerable skill:-
> Yes I do try to use it for data but like you said I will try extra
> ferrites but a change in monitor seems best solution I want to use it
> with my ft102 for psk ,sstv etc and use my dx394(plastic noise box) to
> decode fax etc but as I said the gra[phics cards oscillate at 14.???Mhz
> crystal in them so I think that if I
In that case, there must be some sort of wire link between radio and PC. This
will most probably be the way the interference is getting into the rig, so try
disconnecting that as a first step.
If that is the cause, then you need to find an effective way to isolate the
electrically audio link between the two. One way is to use a small audio
tranformer with the output of the rig wired across one side (primary) and the
secondary feeding the PC.
Another way, is to use an opto-isolator. This is just an IR LED pair, Tx and
Rx built into a single 4 pin package. There are lots of circuits around to do
this. The idea is simply to ensure there is no direct electrical connection
between the two to carry the interference through to the rig.
You might also try pulling out the antenna, to see if it is getting in by that
route.
ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
º 73 from Harry, M1BYT @ GB7FCR.#16.GBR.EU º
ÌÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͹
º International Museums Weekend 18th+19th June 2005 º
º www.ukradioamateur.org/imw/index.html º
ÌÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͹
º The ARC's FL/RAE courses + Newcomers Introduction º
º to amateur radio:- http://www.ukradioamateur.org/ º
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º QTH: Garforth, W. Yorks.. º Timed 09:06 º
º harry.m1byt@tiscali.co.uk º 23 Jan 05 º
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