Good point Russ, but this is a Dell desktop, so it's probably certified.  Still, I'll check it out.

Don W6SMB

On Tue, 28 Sep 2004 07:15:18 -0700, Russ Kiehne wrote:

If you have a lot of computer interference, you might check to see if your
computer's power supply is FCC type B certified.  My brother bought a
computer with a power supply that was not FCC certified and the interference
was really bad!
----- Original Message -----
From: "Don Bishop" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 27, 2004 5:33 PM
Subject: Re: Synchronous detection


> Hi,

> That's a good point about the modem.  I have a lot of computer
interference here from this machine.  We have an alarm system in the house
with a remote
> control, but the remote is virtually unusable due to the computer
interference.  Also, the interferrence is a problem on the am band as well,
so will try the sync
> to see if that helps at all.

> Most of the stations around here are quite a distance away.  They are
clear enough most of the time, but are still weaker than if we were in a
metropolitan
> area, so any kind of interferrence is really noticable and often make the
stations quite hard to listen to.

> Don W6SMB

> On Mon, 27 Sep 2004 20:23:29 -0400, Kenneth Lee wrote:

> My cable modem causes lots of interference and I discovered I can =
> eliminate
> the interference by turning on the sync.  I noticed that the upper =
> sideband
> will be clear as a bell, and the lower sideband is unreadable.  This is =
> true
> on both the Sat800 and the 7600GR. Actually the upper sideband is clear =
> with
> sync on or off, but the audio just seems much better with the sync on. =20

> Anyway, the interference isn't on all frequencies, but it enough to =
> cause me
> grief.  I usually turn off the modem, but often I have to leave it on
> because others are using the internet while I'm trying to DX.


> 73, Ken -N5SWR


> -----Original Message-----
> From: Blind-Hams For blind ham radio operators
> [mailto:[log in to unmask]] On Behalf Of Steve Dresser
> Sent: Monday, September 27, 2004 7:50 PM
> To: [log in to unmask]
> Subject: Synchronous detection


> Don,

> Synchronous detection is one of those features that sneaks up on you =
> because
> it doesn't always seem to do much of anything.  Suddenly you notice that =

> station that should be distorted just isn't.  I have noticed, though, =
> that
> the AGC doesn't work as smoothly when synchronous detection is on, =
> probably
> because the local oscillator keeps it from noticing the changing =
> strength of
> the carrier while the audio itself continues to fade up and down.  I =
> don't
> have any good sound technical data to support that theory; it's just my
> amateur attempt to explain what I'm hearing.

> Steve

> On Monday 9/27/2004 18:24 Don Bishop wrote:

> >Steve,

> >Thanks for all the clarification.  I've heard people talking about the=20
> >g radio but when I did a google search I couldn't find the actual specs =

> >on the radio. Sounds like it may not really be what I'm looking for as=20
> >I do have the 2010.

> >I'll have to play more with the synchronous detection on the 2010.  We=20
> >just moved out of the SF bay area and into the boondocs, so I'm getting =

> >reintroduced to selective fading on the am band again.  <smile>

> >Thanks for reminding me of the synchronous feature.

> >Don W6SMB

> ---
> Incoming mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.769 / Virus Database: 516 - Release Date: 9/24/2004
> =20

> ---
> Outgoing mail is certified Virus Free.
> Checked by AVG anti-virus system (http://www.grisoft.com).
> Version: 6.0.769 / Virus Database: 516 - Release Date: 9/24/2004
> =20