ARLA/CLUSTER : FW: [HFpack] Experimenting with an interesting antenna

Miguel Andrade ct1etl
Quarta-Feira, 19 de Abril de 2006 - 22:41:36 WEST

-----Mensagem original-----
De: hfpack [mailto:hfpack]Em nome de
EA5XQ(Juan A. Bertolin)
Enviada: quarta-feira, 19 de Abril de 2006 15:20
Para: hfpack
Assunto: [HFpack] Experimenting with an interesting antenna

Hi all again

After trying to replicate the DXSR-VFD4 version, I have been searching
some additional information in Inet for the sake of trying to improve
"my own version". I found some very interesting information in the
following links. A very good analysis is showed in the second and third
one (also some formulae to calculate the Windom for 1.8Mhz)

So far I was able to work Eastern European stations with 1 and 2Watts
with no so much trouble (bearing in mind the current place of the
antenna not optimal and the propagation status today, no very good). I
was using 4:1 balun but after reading the docs aforementioned I'm going
to build a 6:1 and test it. I modeled the antenna with MMANA to see the
behaviour in the different bands. "My version" is 7.20m short side and
13.5 long side (not valid for 80m or 15m). The 7.20m short side is in
vertical shape and the long side is folded.

I'm going to follow experimenting with this so simple but interesting

Best 73

Juan, EA5XQ

EA5XQ, QRA:Juan, QTH:Almazora, LOC:IM99XW
E-MAIL: ea5xq.juan
SKYPEME: callto://jabertolin/
ALWAYS Snip or DELETE the ORIGINAL MESSAGE before replying!
All messages should be friendly, helpful, and courteous.
Sign your message with your NAME and CALLSIGN.
HFpack Frequencies: 14342.5USB / 18157.5USB/ 10117.5CW /
7065USB / 7165.5USB / 7296USB / 5371.5USB / 3996USB / 3791USB
This is a private communication intended only for members of HFpack.
To STOP HFpack emails, send an email to:
To receive NO EMAIL, but still get HFPACK SPECIAL BULLETINS,
go to


Yahoo! Groups Links

<*> To visit your group on the web, go to:

<*> To unsubscribe from this group, send an email to:

<*> Your use of Yahoo! Groups is subject to:

Mais informações acerca da lista CLUSTER