FO&A,

Here is a Re-Post of some INFO about the
The Grove "Tunerless" All Band Antenna ~ RHF

Grove Tunerless All Band Antenna
- a little bit of this and a little bit of that . . .
http://groups.yahoo.com/group/Shortw...a/message/9847
http://www.google.com/group/rec.radi...d8ad9dfadd8fcb
http://groups.yahoo.com/group/Shortw.../message/11673
http://groups.yahoo.com/group/Shortw.../message/11679

- - - - - For One and All - - - - -

Grove Tunerless All Band Antenna - a little bit of this
and a little bit of that . . .

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
and there is simply a Coax Cable feed-in-line. With
this 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
.
.
I-B Somewhere on "The Big Blue Marble"
http://en.wikipedia.org/wiki/The_Blue_Marble
{ Earth - The Third Planet from the Sun }
http://en.wikipedia.org/wiki/Third_planet_from_the_Sun
.
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/Shortw...a/message/9233
.
Tous Sont Bienvenus ! - - - Groupe par Radio
d'auditeur d'onde courte pour des Antennes de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Alle Sind Willkommen ! - - - Shortwave Radiozuhörer
Gruppe für SWL Antennen
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Tutti Sono Benvenuti ! - - - Gruppo Radiofonico
dell'ascoltatore di onda corta per le Antenne di SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Todos São Bem-vindos ! - - - Grupo de Rádio
do ouvinte do Shortwave para Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
Ð’Ñ�е Ð*адушны ! - - - Группа оператора
на приеме коротковолнового диапазона
Radio дл� Aнтенн SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
¡Todos Son Agradables! - - - Grupo de Radio del oyente
de la onda corta para las Antenas de SWL
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
= = = = Plain Old American-English Translation = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
|
|
|
/ \
-------!-------