Need "How to build.." article Jan 06 Monitoring Times

Need "How to build.." article Jan 06 Monitoring Times

Post by mario9.. » Tue, 30 May 2006 00:39:12

Does anyone have a copy/scan of the "how to construct" antenna article
in the Jan 2006 (I believe it was) Monitoring Times? I wanted to build
this simple two wire antenna with my sons, but can't find my original
issue. This one seemed fun to get younger people involved. I appreciate
your time........
 
 
 

Need "How to build.." article Jan 06 Monitoring Times

Post by Mont » Tue, 30 May 2006 12:26:48


There's an article on page 21 of the February issue.  It's also
mentioned and pictured at
http://www.monitoringtimes.com/html/mtswlprimer3.html but no detailed
plans there.  The MT article states the center connector is from
Hy-Gain http://www.hy-gain.com/products.php?prodid=C-1  and the 4:1
balun is a Van Gorden.  The author cites AES and Durham Radio as
retailers.

Thanks for the inquiry.  I've been in the mood to put up another
antenna and this looks like my next project.

Monte
Nashville, TN USA



Quote:>Does anyone have a copy/scan of the "how to construct" antenna article
>in the Jan 2006 (I believe it was) Monitoring Times? I wanted to build
>this simple two wire antenna with my sons, but can't find my original
>issue. This one seemed fun to get younger people involved. I appreciate
>your time........

 
 
 

Need "How to build.." article Jan 06 Monitoring Times

Post by RHF » Tue, 30 May 2006 16:59:44

For One and All,

Grove Tunerless All Band Antenna - a little bit of this
and a little bit of that . . .
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/9847

Here is my take on the Grove Tunerless All Band Antenna
(See Drawing).
http://www.monitoringtimes.com/html/mtswlprimer3.html

The general design appears to follows that of a "G5RV"
Multi-Band Antenna developed by Louis Varney [G5RV]
http://www.astrosurf.com/lombry/qsl-g5rv.htm
http://www.astrosurf.com/lombry/qsl-g5rv-2.htm
http://radio.thulesius.se/div_mtrl/g5rv.htm
An Equal-Arm "Dipole" Top Section connected to a
Twin-Lead Down-Line Matching Section ending in a
SO-239 Connector which is then connected to the
Coax Cable feed-in-line.
http://www.radioworks.com/cg5rv.html
http://www.wb0w.com/g5rv/g5rv_antennas.htm
http://www.cebik.com/wire/g5rv.html

What makes this Grove Tunerless All Band Antenna
'different' from a standard G5RV Antenna :

# 1 - The Top Section is not a standard {Equal-Arm}
Dipole Antenna but and Off-Center Fed Dipole -or- in
this case a Windom Antenna given the measurements
Short-Arm of 44 Feet (33%) and Long-Arm of 90 Feet
(67%) for a Tip-to-Tip Length of 134 Feet with 48.5
Feet of Twin-Lead as a Down Lead Matching Section.
http://www.packetradio.com/windom.html
http://www.kh2d.net/windom.cfm
http://www.ve1dx.net/windom.html
http://www.cebik.com/gup/gup9.html

# 2 - The 4:1 Matching Transformer at the junction of
the Twin-Lead Down-Line Matching Section and the Coax
Cable feed-in-line. Often with the Windom Antenna the
Matching Transformer is at the Horizontal Feed-Point
of the Wire Antenna Elements and there is simply a
Coax Cable feed-in-line.  With this Grove Tunerless All
Band Antenna we have the Twin-Lead Down-Lead Matching
Section between the Horizontal Wire Antenna Elements
and the Matching Transformer; which makes it more like
a G5RV Antenna.

Question - So What Is Your Take on the
Grove Tunerless All Band Antenna ?

a little bit of this and a little bit of that - iane ~ RHF
 .
Shortwave Listener Antennas => http://tinyurl.com/ogvcf
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
SWL Antenna Group => http://tinyurl.com/ogvcf
 .
The Shortwave Listener's Blessing :
SWL BLESSING => http://tinyurl.com/s2bjm
May You Never Tire of Listening to the Radio and Always
have Strong Signals and Noise Free Reception ~ RHF {ibid}
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/message/9233
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