[Elecraft] Portable Antennae

[David Ferrington, M0XDF]

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" <w3fpr at embarqmail.com> 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
>>   
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