[RFI] Fw: FM on 2.250?
Thu, 17 Jan 2002 14:41:19 -0500
There used to be a product to do wireless linking on computers to the
telephone line and it used FM at about 3.515 .... maybe some others were on
similar low frequencies?
73 from Bill - WD8ARZ
----- Original Message -----
From: "Jamie WW3S" <email@example.com>
Sent: Wednesday, January 16, 2002 18:26
Subject: [RFI] Fw: FM on 2.250?
> I've been plagued with a noise problem here on 160 that has been driving
> crazy. The noise seems centered on 2.250 mc. Just when I thought it was
> from the local AM station on 1490, I was cycling thru the modes on my
> and it seems to be FM!! With 18db of attentuation and using my C3 the
> is 40db over S9. On my 160m Inv L its 60+ even with the 18db in. It
> like a dead carrier but then I started hearing what sounds like old style
> analog data. No real pattern but every 3-5 minutes it will send small
> of data, almost like a metering circuit. It also appears to have voice
> traffice on it at times although I can't understand it ( maybe narrow
> There is a National Fuel pump station close by ( less than 1 mile). Could
> this maybe be their stuff? I've been trying to do the math for
> mixing/rectification/BCI on the 1490 station as the 3rd harmonic is very
> loud on 4.470
> but isn't that loud on 2.980. I don't think it commercial power.....and
> sure abouot BCI...
> Anybody have any ideas?
> 73 Jamie WW3S