GS,
What you have basically described is the "Portable Wire Antenna"
(PWA) that was created and written about by Tom Sevart [N2UHC].
Portable Wire Antenna "PWA" for the Sony ICF-2010.
- - - To 'quote' Tom Sevant
"This is an antenna I put together after having problems
with overload on my Sony 2010 portable shortwave receiver"
GoTo=
http://www.geocities.com/n2uhc/portablewire.html
FWIW: Basically, the PWA is a a short to medium length
"Random Wire Antenna" that is 'couple' via the a
'portable' radio's Whip Antenna for improved reception.
HOW-TO-USE-IT - Place the "Coupling Coil":
#1. Vertically [Over] the 'portable' radio's "Partially Collapsed"
Whip Antenna for Improved Shortwave (SW) Radio Reception.
- - - Vary the "Length/Stub" of the Whip Antenna to 'adjust'
the amount of effective coupling and Signal Transfer.
#2. Vertically [Over] the 'portable' radio's "Fully
Extended" Whip Antenna for Improved FM Radio Reception.
#3. Horizontally [Near] the 'portable' radio's AM/MW
Ferrite Rod Antenna for Improved AM/MW Radio Reception.
- - - Adjust the 'position' of the Coupling Coil to vary
the amount of effective coupling and Signal Transfer.
GoTo=
http://www.geocities.com/n2uhc/portablewire.html
The webpage written by by Tom Sevart [N2UHC] describes the
construction and set-up of the PWA [Portable Wire Antenna].
iane ~ RHF
..
..
= = = Gray Shockley
= = = wrote in message s.com...
On Sun, 30 Nov 2003 16:00:19 -0600, David Mills wrote
(in message .net):
Hi..
I have really enjoyed reading the feed back on my first post (need advice
for a short wave radio). Had no idea there was so much technical knowledge
involved!! You guys sure know your stuff.
I did not mention the model and make of my current radio. I currently have
a Realistic DX-360. It has analog tuning 6 separate short wave bands as
well as am and fm. There is a jack for dc current and an ear phone jack.
There is NO jack for an external antenna. A telescoping antenna comes out
to about 3 feet length or so.
I would guess that problem with fading and with the inability to pick up weak
stations is more an antenna problem than a receiver prob.
Put yourself up a reasonably good antenna and run the lead-in wire to your
radio area and wrap the antenna lead-in around the base of the whip antenna.
Wrap it a buncha times (say 10 or 12).
[10 or 12]
This is called "inductive coupling" as it is an interplay between the
magnetic fields of the whip antenna and the antenna lead-in.
So, this is known as either:
[1] inductive coupling using magnetic fields
or
[2] Wrapping the whatchacallit around the bottom of the thingmajig.
Gray Shockley
-----------------------
DX-392 DX-398
RX-320 DX-399
CCradio w/RS Loop
Torus Tuner (3-13 MHz)
Select-A-Tenna
-----------------------
Vicksburg, MS US
I am not very happy with this radio due to lots of fading in and out and
only the strong stations come in at all.
I live in the Northeast US and I am mostly interested in getting Radio
Canada, Radio Switzerland and Radio France International. Anything else is
gravy!! I really want to keep price under a hundred.
Lastly..has anyone noticed the strong proliferation of evangelistic
religious type radio stations on short wave? does many folks really listen
to them? Wish I could filter them out but oh well!!
I went to a radio shack today and asked to see a Grundig Yacht boy 300. I
saw it. Trouble is..the salesman new nothing about the features. Hmmm..dont
like buying from a place with unknoledgable salesman!
Thanks guys for all your help!!!
David
..