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Old December 23rd 03, 07:43 PM
RHF
 
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DAVE,

Concerning the BroomStick Antenna:
http://www.hard-core-dx.com/nordicdx.../bromstik.html
http://www.hard-core-dx.com/nordicdx...al/broom2.html
http://www.hard-core-dx.com/nordicdx.../tunestik.html
http://www.hard-core-dx.com/nordicdx.../tunstik2.html

IIRC: The 1.2kM of wire was wrapped on a piece of PVC Pipe
http://www.hard-core-dx.com/nordicdx...al/broom3.html
- - - "improved model is 6 m (18Ft) of 4 Inch OD PVC"
(Section of Well Lining that was over 18 Foot Long.)
= = = Effectively a 18 Foot Vertical Antenna.
"I mounted the 6 m (18Ft) portion vertically, and the 2.5 m (7.5 Ft)
section horizontally (a "reverted "L"" system). I added in my 250 m
(750 Ft) Random Long Wire (it was there, so why not use it?), grounded
the thing and in great anticipation, plugged it into the radio.
- - - The results were more than amazing." - by Marty Leipzig

HELLO! Forget the BroomStick [.]
TBL: This Guy had a 750 Ft Random Wire Antenna !

When your 'think' of a Broom Stick Antenna that has a size small
wire tightly wrapped along a length of PVC Pipe. Just consider
the piece of PVC Pipe an equal section of Aluminum Tubing; and
not much more.

Better to try a Eight Foot Section of 2"-3" PVC Pipe with a
single wire wrapped in three coils on it.
* Use a 500 Foot Spool of #14 AWG Insulated 19 Stranded Wire.
* Each "Coil" set to resonate at a different band of your choice.
* Each "Coil" spaced 1'-2' apart on the PVC Pipe.

IMHO: The BrommStick Antenna is a 'good idea' for Apartment
Residents stuck with a single outside facing window.
- - - Been There, Done That !

REMEMBER: The ANTENNA + GROUND SYSTEM is . . .
55.5% of the Radio/Receiver and Antenna+Ground Reception Equation.
GoTo= http://groups.yahoo.com/group/SWL-AM...na/message/288

All are WELCOME at this "Antenna Ashram"
+ Who Seek Better Reception
+ + And a Clear Understanding
+ + + From That Which Transcends the Ether and Beyond.

WHE "SWL Antennas and AM & FM Antennas" eGroup on YAHOO !
- When You NEED to Contemplate the
- - "Aerial High" and the
- - - "True Meaning of Ground".


iane ~ RHF
..
..
= = = "Dave"
= = = wrote in message ...
I just got through picking up a ton of discontinued wire from my local Home
Depot, and was planning on building a "broomstick" antenna like some I found
described on the net. Got a question though: doesn't "stretching out" the
coil to a meter or more reduce the inductance of the resulting coil? Why
wouldn't it work better to just leave it on the spool? I was under the
impression that the formula for calculating the inductance for a given coil
involved multiplying the square of the number of coils by the ratio of the
coil width to length. Wouldn't this mean that a "longer" coil would have a
lower inductance than a "shorter" coil, given the same length of wire and
approximate diameter of coils?

Forgive me if I'm being stupid here, it has been twenty years since I have
attempted anything like this, but that was what I thought.

The main account I am thinking of was related by someone in Saudi Arabia who
wrapped 1.2 kM of wire around a piece of PVC and vastly improved their
reception of WWV in the states. I was going to do something similar, and
then looked at the two spools of wire that I was about to unwrap. They are
already coils, so shouldn't I be able to just hook them up to an aligator
clip and stick this to my whip antenna? (I am now thinking about taking the
wire off of the smaller spool and adding it to the larger. Shouldn't that
work?) And if I leave the wire on the spools (which are plastic) couldn't I
turn them toward or away from the station of interest to further improve
reception? (I could even put this in my attic, gaining a few feet of
elevation and hiding it from my unappreciative wife.)

Any input on any part of this idea is more than welcome. I would greaty
value the opinions of those who have actually done something like one of
these two options.

Thanks,

Dave


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