Tom,
I have used a 135-foot or so end fed No. 18 wire for numerous portable
operations with great success. It typically is configured as an inverted L for
160 meters, using a small BC variable in series at the feedpoint to tune for
lowest SWR (using only 100 watts). I will have a half dozen, a dozen or
sometimes more radials. Sometimes just one. Occasionally I'll just adjust the
wire length and forego the series capacitor. Typically 25-40 feet of the
antenna wire is vertical and the rest horizontal or sloping down to the ground.
I may use an available tree or if none take along a 33-foot telescoping
fiberglass MFJ mast. I use an analyzer at the feedpoint to adjust the tuning.
Tuned this way, the antenna also radiates fine on 40-6 meters but does poorly
on 80 meters unless a more exotic tuning network is used (I haven't bothered).
>From a Maine inland vacation spot a few years ago this antenna got me a new
>country on Top Band one August (FW), and from the Adirondacks one year it
>worked for a new one on 6 meters (VP2E). During a week as J79K in April 2003,
>it made over 2000 QSOs on all bands in a holiday-style operation. The last
>night I cut it in half to get on 80 meters in response to many requests.
73/Jon
Jon P. Zaimes, AA1K
Tower climber for hire
http://www.aa1k.us/
Cell: 302-632-2353
email: jz73@verizon.net or aa1k@arrl.net
Reviews of AA1K towerwork on eham website:
http://www.eham.net/reviews/detail/12922
Hug your favorite towerevery day, and always stay connected to it.
>>>>>Hi All
I am making an antenna to take along when I am camping. I'm thinking of
the EFHW for it's ease of operation and construction. Most of the designs
I've seen on the 'net are for 80 - 10 meter models, using a 135 foot wire.
If I were to extend the wire to 260 feet, would this work on 160 n down?
Thanks and 73
Tom W7WHY
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|