Single Wire Antenna {Longwire / Random Wire Antenna} - What To Use
 

David wrote:

On Thu, 29 Dec 2005 16:30:58 -0500, dxAce
wrote:



wrote:

The
measured radiation resistance can be as high as 5000 ohms or as low as
2 or 3 ohms..."

yep..

That's why I wonder about the popularity of these 9-to-1 baluns.

generally a waste of money I think... Some bands they might
help, some might hurt... The reason I think it's a waste of time
is rarely are they actually needed to improve the s/n ratio.

Hardly a waste of money, they actually DO work.

Been using them here for a good number of years.

dxAce
Michigan
USA
Wow. Steve and I agree on something. Call Kofi Annan.

Why? You got some oil you'd like to trade for food?

dxAce
Michigan
USA

Single Wire Antenna {Longwire / Random Wire Antenna} - What To Use : Antenna Tuner? and/or Pre-Selector?
 

On Thu, 29 Dec 2005 19:03:41 -0500, dxAce
wrote:



Why? You got some oil you'd like to trade for food?

I haven't paid too much attention to it, but I think the oil was never
meant to be traded directly for food. I think the name means that
Iraq was allowed to sell oil in order to be able to afford imported
edibles.

Single Wire Antenna {Longwire / Random Wire Antenna} - What To Use : Antenna Tuner? and/or Pre-Selector?
 

David - You are right ~ RHF

Single Wire Antenna {Longwire / Random Wire Antenna} - What To Use : Antenna Tuner? and/or Pre-Selector?
 

"dxAce" wrote in message
...


wrote:

The
measured radiation resistance can be as high as 5000 ohms or as
low as
2 or 3 ohms..."

yep..

That's why I wonder about the popularity of these 9-to-1 baluns.

generally a waste of money I think... Some bands they might
help, some might hurt... The reason I think it's a waste of time
is rarely are they actually needed to improve the s/n ratio.

Hardly a waste of money, they actually DO work.

Been using them here for a good number of years.

I put one together last year, and yes, I agree with
Ace. Of course, sealing the darn thing properly
to prevent leakage into the case is important too.
Had to go back a couple of times to reseal it to
make sure it works, but they actually do work.

--Mike L.

Inside view of the RF Systems Magnetic Longwire Balun ( MLB )
 

On 30 Dec 2005 11:35:41 -0800, "RHF"
wrote:

For One and All,

Inside view of the RF Systems Magnetic Longwire Balun ( MLB )
http://www.remeeus.nl/english/hamradio/mlb.htm
http://groups.yahoo.com/group/Shortw...a/message/7245

RF Systems Magnetic Longwire Balun ( MLB )
http://www.thiecom.de/mlb.htm
http://www.universal-radio.com/catalog/sw_ant/1484.html
http://www.suertenich.com/html/radio...ire_balun.html
http://www.universal-radio.com/catal.../4067chrt.html
http://www.universal-radio.com/catalog/sw_ant/1465.html
http://www.thiecom.de/mlb_1.jpg


images and Ideas - iane ~ RHF
.
.
. .
.
Now THAT is a rip-off.

Inside view of the RF Systems Magnetic Longwire Balun ( MLB )
 

On 30 Dec 2005 12:30:48 -0800, "RHF"
wrote:

DX Ace,

At the Price Mark-Ups - I am surprised at a Chinese
Manufacture like Tecsun or Degen has not gotten into
building and offering a reverse-engineered-product
like the Systems Magnetic Longwire Balun ( MLB ) ? ? ?
http://www.universal-radio.com/catalog/sw_ant/1484.html

Also the RF Systems MLBA-MK1 or MLBA-MK2 Antennas
http://www.universal-radio.com/catalog/sw_ant/1465.html

Figure with the Chinese Manufacturing Cost being 1/10th
of the European's. And the Chinese made Items selling
on eBay for 1/3 to 1/2 the Current RF Systems USA Price.

jm2cw ~ RHF
.
These guys charge fair prices.

http://www.geocities.com/qrp_baluns/product.html

Sealing a Matching Transformer {Balun} for the OutSide Weather
 

On 30 Dec 2005 11:59:23 -0800, "RHF"
wrote:

For One and All,
I use this stuff. I add a wrap of Scotch 33+ to keep the sealant dust
free.

http://www.coaxseal.com/How%20to%20Use%20Coax-Seal.htm

Single Wire Antenna {Longwire / Random Wire Antenna} - What To Use : Antenna Tuner? and/or Pre-Selector?
 

Michael Lawson wrote:

I put one together last year, and yes, I agree with
Ace. Of course, sealing the darn thing properly
to prevent leakage into the case is important too.
Had to go back a couple of times to reseal it to
make sure it works, but they actually do work.

--Mike L.
-----------------------------
I have found that using the black plastic 35MM fil canisters
filled with silicon seal works very well. The Kodak ones last
much longer then the other I have checked. Don't use the clear,
or translucent ones as they will fail in a single season.

I us the plastic ones for mini DXpeditions.

If you are lucky enough to hae an aluminum 33MM cnaister they
work great! My dad was an advanced photographer so I have a
few of the aluminium and even fewer of the even older painted
steel units.

I have an aluminium unit that has been up for ~10 years with no sign
of failure.

Terry

Single Wire Antenna {Longwire / Random Wire Antenna} - What To Use : Antenna Tuner? and/or Pre-Selector?
 

David wrote:
I haven't paid too much attention to it, but I think the oil was never
meant to be traded directly for food. I think the name means that
Iraq was allowed to sell oil in order to be able to afford imported
edibles.

Actually, Iraq wasn't supposed to get any money out of it until after the
program ended. The UN was to get the money and use it to send food, medicine,
and supplies, and build schools, electrical power stations and the like.
Instead the money went to enrich Kofi and his kid and Saddam, and to buy
Iraq more embargoed armaments.

--
If John McCain gets the 2008 Republican Presidential nomination,
my vote for President will be a write-in for Jiang Zemin.

Single Wire Antenna {Longwire / Random Wire Antenna} - What To...
 

A bunch of years ago,I used an old raggity fifty foot long electric
extension line for an antenna for one of my old Shortwave radios.What I
did was connected the two wires (I didn't fool with the ground wire) of
the line together with a piece of wire and I draped the line around over
piles of my junk in my house,I ran the line from the radio by my couch
in my living room and through my dining room and through my kitchen and
on down the hall and back through the living to near my front door.It
worked pretty good too.

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cuhulin