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Author Topic: Low Band Antennae  (Read 731 times)
Josh
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« on: June 13, 2017, 1719 UTC »

What do you guys use for low band? Say 25 to 88MHz? Also apparently the eskip is rolling from the midwest to Montana to south of Mehico right now.
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BoomboxDX
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« Reply #1 on: June 14, 2017, 0505 UTC »

A long time ago (before the antenna blew down) I had an 11 meter quad loop that worked real well on VHF low band. I heard guys talking in Louisanan, Cajun like accents talking about oil rigs, and other interesting transmissions between 30-33 MHz or so. And I'm in the PNW.

That, of course, was in 1990 or so and the sunspots were up.
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An AM radio Boombox DXer.
+ GE SRIII & TRF on MW.
The usual Realistic culprits on SW (and a Panasonic).
ThaDood
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« Reply #2 on: June 14, 2017, 1052 UTC »

      Heck, just use a 102" CB whip antenna. No baseload coils to attenuate higher FREQ's. Or, ya might be able to grab a Low Band VHF commercial 60", or so, whip for nothing. Many commercial dispatchers are leaving the VHF Low Band for UHF, or cell phones, so ya might just pick-up a freebie there. 
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Josh
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« Reply #3 on: June 14, 2017, 1536 UTC »

See that's kinda what I was thinking, use a cb whip and be done with it.
A beam as boombox mentions would be nice but more cost and work than I want, just have to find a cheap 1/4w. A beam would open and close the band but I want something simple and omni, the opposite of a beam. Used to have a Francis Antenna model Wheeler Dealer, a fibreglass 1/4w stick that had 3 quarter waves fed in phase bundled inside the fibreglass, same diameter as a standard cb whip, had grossly increased lower angle of radiation over a 1/4w stick in the same mounting point. We mounted the a standard stainless whip and set the fs meter to full scale a few wavelengths away, then mounted the wheeler, the wheeler resulted in a few times more low angle rf power at the same distance and rf power out, blew us away. Sadly they don't make it anymore.

http://www.cbtricks.com/ant_manuals/francis/cb_28/ad/index.htm
« Last Edit: June 14, 2017, 1610 UTC by Josh » Logged
BoomboxDX
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« Reply #4 on: June 17, 2017, 0647 UTC »

FWIW, my 11 m quad antenna, which I mentioned, was a single quad loop. No second element. Fairly easy to build. It was on a wooden cross frame I nailed together, and I could turn it and aim the lobes NS or EW. But it had pretty good reception in most directions.
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An AM radio Boombox DXer.
+ GE SRIII & TRF on MW.
The usual Realistic culprits on SW (and a Panasonic).
Looking-Glass
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« Reply #5 on: June 17, 2017, 0743 UTC »

Radio Shack/Archer three radial 5/8 Groundplane CB antenna shortened by three feet done the trick for me! Grin
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Mount Piddington, NSW, Australia 3,654 feet ASL (127kms west of Sydney)

Grid Square:  QF56dj.

Yaesu FT-2000D & Tecsun S-2000 to 310 feet of wire, and a multi band vertical of dubious reliability.
ByteBORG
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« Reply #6 on: June 17, 2017, 1331 UTC »

</me holds a skull>
Alas poor Radio Shack,
we knew Ye well...
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Josh
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« Reply #7 on: June 17, 2017, 1421 UTC »

Ah Shakespeare, that rascal.

"My wit's diseased!"
Hamlet



The single loop sounds nice, and I know how well they work. Just before my HAM ticket came in the mail I'd thumbtack'd a wire loop for 6m on the bedroom wall, fed at a bottom corner with coax. The day the license came was a vhf contest and propagation was coast to coast. 3 watts from one of these; http://www.eham.net/reviews/detail/930

On the lines of cb antennae, think I'll just get a decent mobile cb ant and mount it in place of the stinger on the disconey. Thanks for the input.

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