How to Construct a Portable Station - Articles Forum at eHam.net

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How to Construct a Portable Station	Reply
by M5GWH on June 20, 2009	Mail this to a friend!
Looks a good tidy setup Charles - thank you!

How to Construct a Portable Station	Reply
by G4AON on June 20, 2009	Mail this to a friend!
Neat idea to use the washing line reels, I was so impressed I've just ordered a pair from an eBay trader to try them myself. 73 Dave

RE: How to Construct a Portable Station	Reply
by K0BG on June 20, 2009	Mail this to a friend!
Charles, when you reconstruct this set up, I have two suggestions. First, screw the SO239 to the outside of the end cap. That way, the PL259 will be easier to screw on tight. Two, buy an FT114-67 ferrite core, and wind a balun inside the cap. While you might not notice any changes, you won't have to worry about common mode currents or noise. Alan, KØBG www.k0bg.com

RE: How to Construct a Portable Station	Reply
by K4OB on June 20, 2009	Mail this to a friend!
Very Cool !

RE: How to Construct a Portable Station	Reply
by K0BG on June 20, 2009	Mail this to a friend!
Yup! It's a wonder antenna. As in, wonder it works! It has always intrigued me, that folks will buy all manner or antennas, without regard to any given attribute, or lack thereof. The end-fed dipole (?), and the Maxx-Comm both come to mind. As long as you can work DX, who cares about any other aspect? It pays to remember; there really is one thing worse than being ignorant, and that is, not knowing you are! Alan, KØBG www.k0bg.com

RE: How to Construct a Portable Station	Reply
by KA4KOE on June 20, 2009	Mail this to a friend!
Good article, Charles. Those clothesline reels are FRAGILE (FRA-GEE-LAY). I quit using them as they would break easily, especially if dropped on a hard surface. Try refitting a chalk line reel. Philip KA4KOE

RE: How to Construct a Portable Station	Reply
by KA4KOE on June 20, 2009	Mail this to a friend!
Second thought....wind. Will a breeze knock it over? Might want to add a set of guys at 90 degrees to the wire. Speaker stand tripods may also be worth a look. They are very similar. Philip

RE: How to Construct a Portable Station	Reply
by KA4KOE on June 20, 2009	Mail this to a friend!
The EFAB antenna looks like another one of those antennas with a swamping resistor inside the box. Open the box up and lets see whats inside.....my guess is its full of potting compound. NOW, if there is an automatic antenna tuner in there with relays, caps, and inductors, it MAY be worth a look. You probably should stay away from it. You're better off with a proper antenna any day than another gimmick. Philip KA4KOE http://www.neidlinger.us/greenies.pdf

RE: How to Construct a Portable Station	Reply
by KA4KOE on June 20, 2009	Mail this to a friend!
My version of the portable dipole. Fed with twin lead with a PL259 soldered on the end. Hooks up to my manpack. Its around 85 feet per leg, configured as an extended double zepp with gain. Twinlead is 450 ohm stuff from the Wireman. http://tinyurl.com/meud65 Wire is WD-1T, extremely strong stuff.

How to Construct a Portable Station	Reply
by N4NSS on June 20, 2009	Mail this to a friend!
Good article... I need to write my antenna articles since I did this last year for my portable QRP. I used 50 ft. per side on the same spools using 30 ft. of 300 ohm TV line, LDG 4:1 balun and 25 ft. coax to rig. Mine tunes 80-6 meters just fine.

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