I remember a sprial wound antenna in the ARRL handbook,perhaps in the '70s.
You
need one wavelength
of wire wound on a dowel about 2" dia. The length of a 20 meter antenna would
be just over two to three
feet. Can feed the antenna with the "hot" and the gutter with the shield.
Worked a few JAs on 20 cw with it!.
Clayton N4EV
________________________________
From: "Rsoifer@aol.com" <Rsoifer@aol.com>
To: tentec@contesting.com
Sent: Thu, December 2, 2010 8:56:27 AM
Subject: Re: [TenTec] OT: Indoor Antenna
If possible, I'd recommend the counterpoise.
In a message dated 12/2/2010 1:49:40 P.M. GMT Standard Time, kf6e@mail.com
writes:
I don't need permission to play, only to erect a basketball backstop.
My next door neighbor came over one evening and after a little chit-chat,
asked me to sign a document. I asked what it was. He said it was the
permission form for him to install a storm door. I need to get permission to
change the color of the shutters on my house, or put down a piece of drift
wood as decoration in the garden.
I like the idea of a spiral-wound antenna with counterpoise as
wall-mounted flag pole. I'll start experimenting with lengths. If I put the
remote
tuner on the ground behind bushes and run a wire up to the antenna, the
whole thing would load. Do you suppose an eight-foot ground rod right at the
tuner would suffice, or would I still need a counterpoise?
73,
Frank
-----Original Message-----
From: Bwana Bob <wb2vuf@verizon.net>
To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Cc: kf6e@mail.com
Sent: Tue, Nov 30, 2010 10:31 pm
Subject: Re: [TenTec] OT: Indoor Antenna
Frank, you need permission to play basketball? The flagpole on the wall
will work. Make the flagstaff out of fiberglass, gray PVC conduit, or
even a varnished broomstick. Spiral wind wire on it and cover it with
shrink sleeving. Run a counterpoise wire down to the ground and around
the house foundation. Use a remote antenna tuner. Want a phased array?
Set up two flagpoles, one with the US flag and one with the state flag.
A Hanstick or Hustler mobile antenna will also work as a flagstaff. The
MFJ will work but it will be less efficient because it is base loaded.
Once I put a slinky dipole in the attic as a backup antenna. It worked
with a tuner on 80 meters, but it was 10-15 dB down from my outside
G5RV. on the other hand, a full size 10 meter dipole in the attic was
better than the G5RV because of the inherent feed line losses and
mismatch of the G5RV on 10.
How about this approach: Get the biggest, meanest SUV you can afford,
like maybe a NATO-surplus Daimler-Benz UNIMOG radio truck. Park it in
the driveway. Then put the biggest, meanest mobile antenna(s) on it and
run the feedline into the house. See, no antennas on the house. HOA will
be happy!
Seriously, I hope that you find a way.
73,
Bob WB2VUF
On 11/30/2010 11:04 AM, kf6e@mail.com wrote:
> Thanks. If flagpoles were allowed, I'd have a flagpole antenna. I
spent
about a half hour talking with my lawyer last night,
> and there are no loopholes in VA law that I could use. The only flags
allowed
in our community are the type that attach
> to the exterior wall. I have an MFJ apartment antenna that I might be
able to
disguise that way.
>
>
>
> I'm going to apply for permission to erect a basketball backstop in
the back
yard. The screwdriver vertical will just fit inside a six-inch PVC pipe.
>
>
>
> 73,
> Frank
> KF6E
>
>
>
> -----Original Message-----
> From: Clayton Brantley<clayton_n4ev@yahoo.com>
> To: Discussion of Ten-Tec Equipment<tentec@contesting.com>
> Sent: Mon, Nov 29, 2010 4:09 pm
> Subject: Re: [TenTec] OT: Indoor Antenna
>
>
> This month's QST has a real good article on a flagpole antenna.
>
> Another article a few years back shows how to put a Hustler 5BTV inside
>
> PVC water pipe.
>
>
>
> Might want to look at those. Good luck with the snoops! Hi.
>
> Might run a bluff citing Dept of Homeland Security, etc.
>
>
>
> 73's Clayton N4EV
>
>
>
>
>
>
>
>
>
> ________________________________
>
> From: "Rsoifer@aol.com"<Rsoifer@aol.com>
>
> To: tentec@contesting.com
>
> Sent: Mon, November 29, 2010 11:09:35 AM
>
> Subject: Re: [TenTec] OT: Indoor Antenna
>
>
>
> Another possible alternative, depending on your state law, is a flagpole
>
> vertical. Here in Arizona, state law allows homeowners to display the
>
> American flag, military service, POW/MIA, the state and Arizona Indian
nation
>
> flags. HOAs may not prohibit flagpoles, but may adopt "reasonable rules
and
>
> regulations regarding the placement and manner of display" of flags,
>
> including rules regulating the location and size of flagpoles (ARS
33-1808).
>
>
>
> 73 Ray W2RS
>
>
>
>
>
> In a message dated 11/29/2010 3:17:14 P.M. GMT Standard Time,
kf6e@mail.com
>
> writes:
>
>
>
> Jim,
>
>
>
> Sounds like good advice.
>
>
>
>
>
> I laid out some ground radials in the back yard and installed a mount
for
>
> my screwdriver vertical. I put that up after dark some evenings, and
can
>
> work 80 and 160. Interestingly, the attic dipoles do better on send and
>
> receive for 40 through 10. The screwdriver vertical does pretty well
on 80,
>
> and reasonably well on 6 and 2.
>
>
>
> I have been considering an S9-type vertical, which, being longer, should
>
> be more efficient than the screwdriver. I'm fairly sure I'd never get
away
>
> with a beam, though. My neighbors complain about just about anything,
and
>
> there is even a committee of the HOA that goes around the entire
>
> development every week looking for discrepancies.
>
>
>
>
>
>
>
> Thanks for the encouragement.
>
>
>
> 73,
>
> Frank
>
> KF6E
>
>
>
>
>
>
>
> -----Original Message-----
>
> From: Jliving39@aol.com
>
> To: tentec@contesting.com
>
> Sent: Mon, Nov 29, 2010 10:00 am
>
> Subject: [TenTec] OT: Indoor Antenna
>
>
>
>
>
> Frank,
>
>
>
> Suggest that you get into the Stealth Mode using the Redneck
>
>
>
> Philosophy of Not Asking Permission, but Begging Forgiveness if
Caught.
>
> I am
>
>
>
> sure
>
>
>
> you could rig up some kind of outside antenna. I am in a restricted
area
>
>
>
> and have a 40meter dipole, a 20, 17, 10 meter fan dipole, and a six
meter
>
>
>
> beam outside. Keep them low and the associations won't bother you.
>
> However,
>
>
>
> do not ask if it is ok. Simply do it.
>
>
>
> jim, K4CFA
>
>
>
> _______________________________________________
>
>
>
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>
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>
>
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>
>
>
>
>
>
>
> _______________________________________________
>
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>
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>
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>
>
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>
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>
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>
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>
>
>
>
>
>
>
>
> _______________________________________________
>
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>
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>
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