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Path: utzoo!watmath!clyde!burl!ulysses!allegra!bellcore!decvax!genrad!mit-eddie!godot!harvard!seismo!brl-tgr!tgr!Taylor.Wbst@XEROX.ARPA
From: Taylor.Wbst@XEROX.ARPA
Newsgroups: net.ham-radio
Subject: Re: Accessories for SWL
Message-ID: <9363@brl-tgr.ARPA>
Date: Wed, 20-Mar-85 09:58:47 EST
Article-I.D.: brl-tgr.9363
Posted: Wed Mar 20 09:58:47 1985
Date-Received: Sat, 23-Mar-85 02:26:44 EST
Sender: news@brl-tgr.ARPA
Lines: 12


	I HAVE INCREASED THE SENSITIVITY OF THE 2021 BY AT LEAST 10 DECIBELS AT
~4 MHZ BY SIMPLY USING A RESONANT LOOP ANTENNA.  ALL THAT IS NECESSARY
IS TO USE THE ANTENNA WIRE THAT CAME WITH THE RCVR AND PLACE A 100 PF
VARIABLE CAPACITOR BETWEEN THE "FAR" END AND THE GROUND TERMINAL OF THE
RCVR.  (AN  AUDIO TAPE REEL, ~5 IN OD, MAKES A NEAT WAY TO STORE THE
UNUSED SLACK IN THE WIRE.)  I JUST LOOPED THE WIRE AROUND A WINDOW
BEHIND THE DRAPERIES.  

		GOOD LUCK!

			JIM (W2OZH)