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Re: [RFI] Cellphone-Jammer Fad - Harmful to Ham Radio?

To: <rfi@contesting.com>, "Tim Groat" <tcgroat@mesanetworks.net>
Subject: Re: [RFI] Cellphone-Jammer Fad - Harmful to Ham Radio?
From: "Jim P" <jvpoll@dallas.net>
Date: Mon, 5 Nov 2007 21:06:32 -0600
List-post: <mailto:rfi@contesting.com>
I would say that you are at greatest risk operating within
30' from these devices* - as per the NYTimes story; being
hams, we have the ability, unlike the pooring sitting-duck
wireless subscribers, to actually track these kinds of
interfering sources down.

Personally, I have had more trouble from those so-called
active TV settop antennas and RV-TV antennas than anything
else in the world ...

Jim P // WB5WPA //

* Actually, perhaps more like 100x that distance given
weak signal work. The active TV antennas I've tracked
down were on the order of this far away and up to a
mile and a half away at the furthest.

----- Original Message -----
From: "Tim Groat" <tcgroat@mesanetworks.net>
To: <rfi@contesting.com>
Sent: Monday, November 05, 2007 4:47 PM
Subject: Re: [RFI] Cellphone-Jammer Fad - Harmful to Ham Radio?

> Assuming this device actually works as advertised (a big assumption for
> illegal equipment!), the potential interference would be worst on bands
> near the cell phone assignments: 903MHz, 1.2GHz, and 2.3Ghz. I don't know
> how harmful they are to amateur radio transmissions, but they certainly
> be harmful to your amateur radio *license*!
> 72,
> --Tim (KR0U)
> (Maki-Denki QRPp transveretr and 6' loop yagi on 2.3GHz)
> >kd4e <doc@kd4e.com>:
> >
> >I am not sure how broadband these are but imagine they could create RFI
> >a nearby Ham rig.  WDYT?

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