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From: ai2q@ky2d-2.UUCP (Alex)
Newsgroups: net.ham-radio
Subject: Re: Re: Active antennas for shortwave listening
Message-ID: <136@ky2d-2.UUCP>
Date: Fri, 21-Feb-86 20:46:07 EST
Article-I.D.: ky2d-2.136
Posted: Fri Feb 21 20:46:07 1986
Date-Received: Mon, 24-Feb-86 08:31:13 EST
References: <2586@vrdxhq.UUCP> <701@ihwpt.UUCP>
Organization: KY2D-2 Packet Radio Gateway, Little Silver, NJ
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> 
> > My only alternatives for an antenna are a long wire strung  around the  room, or
> > perhaps an active antenna.
> > 
> >    I am considering purchasing a remote active  antenna, such  as the  MFJ 1024.
> > This antenna is small enough (only 54 inches) to be mounted outside, on my  bal-
> > cony.  My other alternative is  to purchase an antenna tuner and attach  my  30'
> > length of wire to it.
> >                               Dennis Gibbs
> >                        ..!{umcp-cs, seismo, verdix}!vrdxhq!dennis
> 
> I have been wondering about the Sony active antenna (or remote
> antenna tuner?) advertised in the back of the instruction book
> that came with the ICF-2002 I just bought at a hamfest.
> It looks expensive, and all I know is from the picture
> in the booklet.  Probably not many stores carry such a thing.
> 
> Does anyone have any experience, or even price info, on this
> gadget?  I'm pretty sure it would work with any radio,
> as the antenna connections on the ICF are nothing special.
> 	mike k	w9nrd
> 	

I'd suggest you take a look at some of the designs W7ZOI published
in the ARRL publication "Solid State Design for the Radio Amateur."
I built up a direct coupled amplifier using four stages and used it
with a homebrew loop antenna to achieve incredible results down on 75 meters.
By turning the loop, you can eliminate local QRN yet still hear as much on the
2' loop indoors as I could on the G5RV outside (wish I could transmit on it!) HIActive antennas are really only limited by the inherent noise in the amplifier
itself. Do not have any experience with the MFJ or Sony (or Palomar) but I
can tell you that active antennas work - and work well! Good luck es 73
Alex AI2Q, Freeport, Long Island, New York