My Compaq is a high end system and came with JBL Pro speakers which are
relatively inexpensive amplified and shielded speakers and do not pick up any
RF setting 5 feet from a KW and 30 feet from 40,80 dipoles and 10-20 meter
quads. I do have a clip on 1 inch long ferrite (Radio Shack) on the computer
end, but do not know if it was needed or just a precaution. I would stick to
name brands as they are normally in compliance with the radiated and
susceptibility requirements of both US and Europe. The Mitsubishi Diamond Pro
87TXM is a good example of an RF clean 17 inch hi res monitor that is also
well tested and clean.
W5FL Wendell
-----Original Message-----
From: owner-rfi@contesting.com [mailto:owner-rfi@contesting.com]On
Behalf Of Tim Duffy
Sent: Monday, September 18, 2000 11:27 AM
To: 'rfi'
Subject: Re: [RFI] PC Speakers
So what is a good make/model for a set of shielded speakers?
Any ideas on where to purchase them?
Thanks and 73,
Tim K3LR
"EDWARDS, EDDIE J" wrote:
> Roger's suggestion is right on. Buy, if you don't already own, a good
> shielded set of speakers to take. If they pick up RF in the shack add
> ferrites. The trick here is which end of the speaker wire do you add the
> ferrites. I had to put them on both ends; the PC end and the speaker end.
> This is because there's an audio amp inside the speakers that can provide
> audio rectification.
>
> My first set of PC spkrs could pick up a local AM broadcast stn on 1110Khz
> better than some of my alarm-clock radios. When I contacted the mfr, they
> claim that they had never heard of such a thing.
>
> Yea, right! ;^)
>
> 73,
> de ed -K0iL
>
> > -----Original Message-----
> > From: Roger P [SMTP:ve3zi@hotmail.com]
> > As PC speakers are very cheap, I would be inclined to follow the
> > suggestion
> > from Palomar Engineers, but also take round with me some speakers that
> > have
> > been tested as 'rf proof' in my own shack.
> >
> > 73 Roger
> > VE3ZI
> >
> >
> > >From: Tim Duffy <tduffy@sygnet.com>
> > >Reply-To: Tim Duffy <tduffy@sygnet.com>
> > >To: rfi@contesting.com
> > >Subject: [RFI] PC Speakers
To: <rfi@contesting.com>
> > >Date: Sun, 17 Sep 2000 22:12:54 -0500
> > >
> > >
> > >I have a neighbor who has just purchased a home PC and her speakers are
> > >hearing my 20 meter signal.
> > >
> > >What solutions have you found best for taking care of RF being picked up
> > >by the remote (connected by wire) speakers? I probably can only visit
> > >once to fix it, so I need the best fix the first time.
> > >
> > >Does ICE have a filter? Palomar?
> > >
> > >If your solution is ferrite cores, beads or rod, what model, mix or
> > >size?
> > >
> > >Thanks,
> > >Tim K3LR
> > >
> > >
> > >--
> > >FAQ on WWW: http://www.contesting.com/FAQ/rfi
> > >Submissions: rfi@contesting.com
> > >Administrative requests: rfi-REQUEST@contesting.com
> > >Questions: owner-rfi@contesting.com
> > >
> >
> > _________________________________________________________________________
> > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.
> >
> > Share information about yourself, create your own public profile at
> > http://profiles.msn.com.
> >
> >
> > --
> > FAQ on WWW: http://www.contesting.com/FAQ/rfi
> > Submissions: rfi@contesting.com
> > Administrative requests: rfi-REQUEST@contesting.com
> > Questions: owner-rfi@contesting.com
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/rfi
> Submissions: rfi@contesting.com
> Administrative requests: rfi-REQUEST@contesting.com
> Questions: owner-rfi@contesting.com
--
FAQ on WWW: http://www.contesting.com/FAQ/rfi
Submissions: rfi@contesting.com
Administrative requests: rfi-REQUEST@contesting.com
Questions: owner-rfi@contesting.com
--
FAQ on WWW: http://www.contesting.com/FAQ/rfi
Submissions: rfi@contesting.com
Administrative requests: rfi-REQUEST@contesting.com
Questions: owner-rfi@contesting.com
|