[amsat-bb] Re: RFI identification
ve9qrp at gmail.com
Wed Jan 23 08:50:37 PST 2008
If you're sure it's not principally your computer that's causing the
problem, you might be interested in the bandsweep tool that's part of
recent builds of HamRadioDeluxe. This was mentioned in a recent
article in the Amsat Journal (I'm sorry, I forget the author), and I
tried it out a couple of nights ago. For me, the visual information
provided by that made it much easier to rotate my 2m beam and get a
heading on some RFI that I've been struggling with for a long time.
With it, you can also identify the birdies that might be signatures of
different sources of RFI.
On Jan 23, 2008 12:13 PM, Joe <nss at mwt.net> wrote:
> Excellent advise!
> Scanners are notorious for making sounds like this also but more on a
> single frequency.
> Computers are also extremely noisy! When operating HF I never use a
> computer, every one I have ever had or used, adds at least 10 DB to the
> noise floor. horrible machines,
> Nate Duehr wrote:
> >One initial thought.
> >First... make sure it's not in your own "backyard". Run the receiver
> >affected off of battery power and kill the main to your house. (Don't
> >forget to turn off anything on a UPS.)
> >If it disappears, you know where to start hunting, at least, and it's
> >an easy test.
> >Consumer electronic gear is getting consistently noisier (is this
> >stuff passing any RF testing at all?) and often-times your own "toys"
> >are making the RF racket.
> >Nate Duehr, WY0X
> >nate at natetech.com
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