I basically have the same, but never thought of using it as anything but an inverted V - thanks Don
On 03/03/2008 19:55, "Don Wilhelm" <[EMAIL PROTECTED]> sent: > Larry, > > The system I use for a portable antenna can be adapted to most any > circumstances I find myself in. It can be a horizontal dipole, and > inverted vee or a vertical. They all work, some better than others, but > hey, it allows one to get on the air in difficult places. It is not > always that one can find the ideal set of conditions, so I make the best > of what I can. > > The heart of my system is a 32 ft telescoping fiberglass medium duty > mast I obtained from www.tmastco.com. Along with that, I have a 44 ft. > dipole center fed with 25 feet of parallel line. > I also carry a 25 ft length of additional parallel line, and 2-22 ft > pieces of antenna wire. I also have a roll of mason line to use for > tying things off. The additional feedline length and 22 ft. antenna > wire extensions are fitted with alligator clips so it can be added when > desirable. > > When I set up, I look at the space available - if I have another high > end support in addition to my pole, the antenna goes up as a horizontal > dipole, but if space is more limited, I just secure the pole with a > bungy cord to a sstationary object and tie the top of the pole to the > center insulator, then put it up as an inverted vee. If space is even > more limited, I tie one end of the antenna wire to the top of the pole > and use it as a vertical with one radial laid out on the ground wherever > I can - if room allows, I will clip on the extra wire at the ground side > of the feedpoint to add more radials. The extra 22 ft pieces of wire > can also be added to the ends of the antenna to make an 88 ft. dipole or > inverted vee for more efficient radiation on 40 meters and allowing > operation on 80. The mason line can also be used for light guy wires if > that is desirable. Tent pins serve nicely for anchor points when no > others are available. > > So there you have my system - it can be a 44 ft. dipole or inverted vee > (extendable to 88 ft.) or it can be a vertical (with feedpoint about 8 > feet above the ground) with one or more radials. Used with a tuner, it > makes a versatile antenna. A few insulators made out of plastic or PVC, > a bit of wire, some 300 ohm or 450 ohm ladder line and a handful of > alligator clips can make you a similar antenna. No, I do not have plans > for it on my website - maybe one day it will get there. > > 73, > Don W3FPR > > > > Larry K1UO wrote: >> >> While I await my K3 (sometime in June) I would like to construct a good >> portable antennae to use while camping (RV camping). If it is a dipole it >> will need to be short enough to fit in the footprint of a campsite. Any >> recommendations.maybe even for a vertical? >> >> >> >> 73 & God Bless! >> >> Ken/NO4D >> >> Ken, >> >> Take a look at either the "End Fedz" or "Buddi Pole" portable antennas. >> Possibly one of those may suit your needs. Good luck >> >> Larry K1UO >> > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com -- Sin lies only in hurting others unnecessarily. All other "sins" are invented nonsense. -Robert A. Heinlein, science-fiction author (1907-1988) _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
