[Antennas] Butternut HF2V

Fri Aug 25 14:39:46 EDT 2006

I would take some fiberglass pole similar to this
http://www.spiderbeam.net/sb/index.php?cat=c2_Fiberglass%20Poles.html make a
trap out of piece of coax. Useful design tool for that can be found here
http://members.shaw.ca/ve6yp/ and is called CoaxTrap.zip
Then a piece of wire about 10m long going down from the top of the pole
would be 40m vertical. I would fix the trap tuned for 40m near the top of
the pole, attach vertical wire to one side of the trap and two horizontal
wires to another side of the trap. That would make the antenna to resonate
on two bands. The lower band can be tuned by lowering the ends of the two
horizontal wires. BTW you can use just one horizontal wire making it
inverted L but that will make the antenna radiating part of the fed power
strait up which is sometimes even desirable.
I would install the antenna in a salt water in some shallow place and attach
between two and 4 radials for each band. Let some of them be in the water.
That will work like a champ. We have made over 3000 QSO with similar antenna
from 8Q7 on 40m alone in 48 hours of CQWW CW contest last year. This antenna
would be easy to build, very light weight (less then 5Kg) and portable (the
fiberglass pole would collapse to just 1.2 m).
73, Igor UA9CDC
----- Original Message -----
From: "Deon Erwin ZS1ZL" <zs1zl at telkomsa.net>
To: "Reflector Antennas Qth.net" <antennas at mailman.qth.net>
Sent: Tuesday, August 22, 2006 6:06 AM
Subject: [Antennas] Butternut HF2V
> I will undertake a DXpedition to an island next month and have all the
gear
> I need, exept a vertical for 80/40m. I thought of building something like
a
> Battlecreek Special, but it is too large to erect. Also, whatever I take
> must be lightweight and disassemble to a manageble size for aircraft
travel.
>> How about the Butternut HF2V?
>> I will appreciate your input.
>> Thanks
> Deon ZS1ZL
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