Re: [IRCA] Audio Optoisolaters
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Re: [IRCA] Audio Optoisolaters

Thanks Curt! Do you know of any that isolate the receiver audio output into 
the line in of a computers sound card? I would like to use SeaTTY for RTTY 
and NAVFAX and also CWGet to help with NDB identification. As soon as I 
plug my receivers into the MIC or Line in jack I get a very loud hash in 
the radios that interferes with recording, etc.
Thanks!
John Hunter
Rossville, GA

At 10:22 PM 12/1/2005, you wrote:
>Take a look at this link:
>http://www.bb-elec.com/product_family.asp?FamilyId=1
>
>Be aware that the 9SPOP2 requires power from the attached device
>interface.  The RS-320 will not work with this adapter because not all
>lines are present in the interface.  At least that is my assessment.  I
>have this coupler and it will not work with the RS-320.  I think the
>9POP4 will, because it uses an external power source.  I have not tried
>this one, however.
>
>I have used the 9SPOP2 with another computer-to-receiver arrangement and
>it worked quite well in eliminating a large part of the computer noise.
>Physical placement also helped.
>
>Curt
>
>W. Curt Deegan
>
>
>John Hunter wrote:
>
> >Hi again, Sorry for the recent barrage of questions but I am trying to
> >solve  some severe RF-EMI problems. I went ahead yesterday and rolled a
> >balun using a core of unknown composition and when I turned on the radio
> >and went down into LW I noticed that the LOUD AC buzz that had previously
> >plagued that area was completely gone and the band was full of previously
> >unheard beacons! It also worked well up to 30 mc.
> >Now I am trying to get rid of the noise introduced into my receivers from
> >my computer and remember reading that someone had found a place that sold
> >Audio Optoisolaters to connect the two together eliminating the
> >computer"hash" and monitor noise. Unfortunately I can't find that email or
> >any web site that sells them. Does anyone know where I can get one? Any
> >help would be greatly appreciated.
> >Sincerely,
> >John Hunter
> >Rossville GA
> >



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