ERIC - Thank You for the Link ~ RHF

More Active Antenna Experiments . . .
http://www.qrp.pops.net/Active_Antenna_2005.htm
http://www.qrp.pops.net/Active_Antenna_2005.htm
Well Written + Good Photos + Detailed Schematics
- - - by 'who' ? ? ?

* Introduction
* The Tuned Whip
* Common Gate Amplifier Version
- 10 MHz Tuned Whip Active Antenna
* Cascode JFET Amplifier Version
* Broadband Output Version
* Tuning a Whip To Other Frequencies
* How to find the correct trimmer capacitor
* for any tuned circuit you wish to resonate
* Building An Active Antenna
* Some Practical Examples : 40 and 41 Meter Band
- 40-41 Meter Band Active Antenna
* 5 MHz WWV Cascode Bipolar Amplifier
* Final Comments
* Experiments by Other Builders

tyvm - iane ~ RHF
.
.
.. .
= = = In ,
http://groups.yahoo.com/group/Shortw...a/message/6302
= = = s*nicxc*ve wrote:

Well I have gotten a bit closer. I have seen what the Commercial
Folks want for these units [$130-$600] and they are just using
old circuits that have been around for years it seems. Granted
they use upgraded components [transistor substitution sheets
offer those] and pretty cases, but the concept has not changed.

_http://www.qrp.pops.net/Active_Antenna_2005.htm_
(http://www.qrp.pops.net/Active_Antenna_2005.htm)

There is a start. I am bound and determined to find all that I can
on the topic and pass it along.

Eric

.
.
..
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/
.
= = = = = Translation = = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
.
.. .

I suppose those whips are good in the boonies, but they are way too
noisy for most real life applications. The cascode should be a good
design, i.e. lots of isolation.

RHF wrote:
ERIC - Thank You for the Link ~ RHF

More Active Antenna Experiments . . .
http://www.qrp.pops.net/Active_Antenna_2005.htm
http://www.qrp.pops.net/Active_Antenna_2005.htm
Well Written + Good Photos + Detailed Schematics
- - - by 'who' ? ? ?

* Introduction
* The Tuned Whip
* Common Gate Amplifier Version
- 10 MHz Tuned Whip Active Antenna
* Cascode JFET Amplifier Version
* Broadband Output Version
* Tuning a Whip To Other Frequencies
* How to find the correct trimmer capacitor
* for any tuned circuit you wish to resonate
* Building An Active Antenna
* Some Practical Examples : 40 and 41 Meter Band
- 40-41 Meter Band Active Antenna
* 5 MHz WWV Cascode Bipolar Amplifier
* Final Comments
* Experiments by Other Builders

tyvm - iane ~ RHF
.
.
. .
= = = In ,
http://groups.yahoo.com/group/Shortw...a/message/6302
= = = s*nicxc*ve wrote:

Well I have gotten a bit closer. I have seen what the Commercial
Folks want for these units [$130-$600] and they are just using
old circuits that have been around for years it seems. Granted
they use upgraded components [transistor substitution sheets
offer those] and pretty cases, but the concept has not changed.

_http://www.qrp.pops.net/Active_Antenna_2005.htm_
(http://www.qrp.pops.net/Active_Antenna_2005.htm)

There is a start. I am bound and determined to find all that I can
on the topic and pass it along.

Eric

.
.
.
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 коротковолновогодиапазона
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/
.
= = = = = Translation = = = = =
All are Welcome - - - To Join the Shortwave Listeners
(SWL) Antenna Group on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
.
.
. .
.