An upcoming QST article will feature a more simple receiver project for VHF
DFing, using a loop and a 120-MHz receiver. Not sure what issue.
The Radio Shack based article is available at:
http://www.arrl.org/tis/info/rfi-elec.html
73,
Ed Hare, W1RFI
ARRL Lab
225 Main St
Newington, CT 06111
Tel: 860-594-0318
FAX: 860-594-0259
Internet: w1rfi@arrl.org
ARRL Web: http://www.arrl.org
ARRL Technical Information Service: http://www.arrl.org/tis/
-----Original Message-----
From: Pete Smith [mailto:n4zr@contesting.com]
Sent: Thursday, January 04, 2001 8:20 PM
To: rfi@contesting.com
Subject: Re: [RFI] DFing power line interference
At 08:03 PM 1/4/01 EST, K8MR wrote:
>
>
>I haven't noticed it in the magazines, but I recently got a flyer from
>Amateur Electronic Supply showing a new MFJ Model 852 Power Line Noise
Meter
>- 135 MHz AM, A front panel meter, headphone jack, built in dual whip
>dipole antenna, etc. The price is $90.
>
>It could be interesting.
I saw that in their latest on-line catalogue, Jim -- but I'm cheap! I
found a September 1992 QST article (not initially found through the on-line
index) that discussed using an earlier Radio Shack RX, but it looked like a
lot of work -- had to put a shield box around the receiver, because it was
unshielded, and build an attenuator for the input to defeat the AGC and
prevent it from evening out the nulls when you get close.
73, Pete N4ZR
Contesting is!
The World Contest Station Database
is back up and running at
http://www.qsl.net/n4zr
--
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
|