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#1
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Was at a field day thing this past weekend. I wasn't there when they
set everything up. There were 3 antennas in use. One very clearly was a Yagi. One of the others very clearly was a "vertical" and the other one was like a wire running the length of the parking lot and was up about as high as the building - then it had a middle wire running in to the shack with the radio. I was told that was a horizontal antenna. Isn't there more specific names for vertical and horizontal antennas than just vertical and horizontal?? Thanks. |
#2
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In article
, " wrote: Was at a field day thing this past weekend. I wasn't there when they set everything up. There were 3 antennas in use. One very clearly was a Yagi. One of the others very clearly was a "vertical" and the other one was like a wire running the length of the parking lot and was up about as high as the building - then it had a middle wire running in to the shack with the radio. I was told that was a horizontal antenna. Isn't there more specific names for vertical and horizontal antennas than just vertical and horizontal?? The terms vertical and horizontal refer to the polarization of the electric field the antenna operates on not the type. A Yagi antenna can be vertically or horizontally polarized for example. -- Telamon Ventura, California |
#3
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#4
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On Jun 30, 6:59*pm, "
wrote: Was at a field day thing this past weekend. *I wasn't there when they set everything up. - *There were 3 antennas in use. Basic Antenna Models http://en.wikipedia.org/wiki/Antenna...antenna_models The Basic Antenna http://www.electronics-tutorials.com...nna-basics.htm Overview of Antennas http://www.ess.washington.edu/Space/...nnalecture.pdf -*One very clearly was a Yagi. http://www.jpo.go.jp/seido_e/rekishi...tsugu_yagi.htm http://www.tpub.com/neets/book10/NTX4-32.GIF http://en.wikipedia.org/wiki/Yagi_Antenna - One of the others very clearly was a "vertical" The Vertical over a Ground -aka- Marconi Antenna http://www.midnightscience.com/_xtal/00000210.htm http://www.electronics-tutorials.com...nna-basics.htm http://www.hnsa.org/doc/radio/chap20.htm - and the other one was like a wire running the - length of the parking lot and was up about as - high as the building - then it had a middle wire - running in to the shack with the radio. *I was - told that was a horizontal antenna. Dipole Antenna, developed by Heinrich Rudolph Hertz http://www.hfradio.ca/images/AntennaRadiate.jpg http://en.wikipedia.org/wiki/Dipole_Antenna http://en.wikipedia.org/wiki/Hertz_antenna http://en.wikipedia.org/wiki/Hertz_a...netic_research Half-Wave Dipole Antenna http://www.electronics-tutorials.com...nna-basics.htm http://www.electronics-radio.com/art...ave-dipole.gif -*Isn't there more specific names for vertical and - horizontal antennas than just vertical and horizontal?? - - Thanks. Shortwave Radio Listening (SWL) Newbies : Some Antenna Basics from Marconi to Hertz to Yagi . . . shortwave radio listening (swl) where the word 'antenna' means more than 'pole' in italian - iane ~ RHF {pomkia} |
#5
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On Jun 30, 9:06*pm, Telamon
wrote: In article , " wrote: Was at a field day thing this past weekend. *I wasn't there when they set everything up. *There were 3 antennas in use. *One very clearly was a Yagi. *One of the others very clearly was a "vertical" and the other one was like a wire running the length of the parking lot and was up about as high as the building - then it had a middle wire running in to the shack with the radio. *I was told that was a horizontal antenna. *Isn't there more specific names for vertical and horizontal antennas than just vertical and horizontal?? The terms vertical and horizontal refer to the polarization of the electric field the antenna operates on not the type. A Yagi antenna can be vertically or horizontally polarized for example. -- Telamon Ventura, California Thanks - actually I was wondering if one of them might have been a beverage antenna because it was really long - but then the feed point was in the middle so I guess not. Thanks for the info - I appreciate it. |
#6
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On Jul 1, 10:27*am, RHF wrote:
On Jun 30, 6:59*pm, " wrote: Was at a field day thing this past weekend. *I wasn't there when they set everything up. - *There were 3 antennas in use. Basic Antenna Modelshttp://en.wikipedia.org/wiki/Antenna_%28radio%29#Basic_antenna_models The Basic Antennahttp://www.electronics-tutorials.com/antennas/antenna-basics.htm Overview of Antennashttp://www.ess.washington.edu/Space/ESS205/antennalecture.pdf -*One very clearly was a Yagi.http://www.jpo.go.jp/seido_e/rekishi...i/Yagi_Antenna - One of the others very clearly was a "vertical" The Vertical over a Ground -aka- Marconi Antennahttp://www.midnightscience..com/_xtal/00000210.htmhttp://www.electronics-tutorials.com/antennas/antenna-basics.htmhttp://www.hnsa.org/doc/radio/chap20.htm - and the other one was like a wire running the - length of the parking lot and was up about as - high as the building - then it had a middle wire - running in to the shack with the radio. *I was - told that was a horizontal antenna. Dipole Antenna, developed by Heinrich Rudolph Hertzhttp://www.hfradio.ca/images/AntennaRadiate.jpghttp://en.wikipedia.org/wiki/Dipole_Antennahttp://en..wikipedia.org/wiki/Hertz_antennahttp://en.wikipedia.org/wiki/Hertz_antenna#Electromagnetic_research Half-Wave Dipole Antennahttp://www.electronics-tutorials.com/antennas/antenna-basics.htmhttp://www.electronics-radio.com/articles/radio/antennas/dipole/half-... -*Isn't there more specific names for vertical and - horizontal antennas than just vertical and horizontal?? - - Thanks. Shortwave Radio Listening (SWL) Newbies : Some Antenna Basics from Marconi to Hertz to Yagi . . . shortwave radio listening (swl) where the word 'antenna' means more than 'pole' in italian - iane ~ RHF {pomkia} *. Are You Interested in building a better Shortwave Listening* (SWL) Antenna ? {SWL Group} =http://tinyurl.com/ogvcf GoTo =http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ *. RHF's Standard "Shortwave Radio Listener (SWL) Antennas Group" Reference Message Signature-Line =http://tinyurl.com/25zbrghttp://grou...1dac3b4a1798e0 *. * Remember 55.5% of Shortwave Radio Listening (SWL) is the Shortwave Antenna =http://tinyurl.com/ogvcf *. RHF's Radio Shack in Twain Harte, California -USA- SHACK INFO =http://tinyurl.com/2skmxm Shortwave Radio / Receiver and SWL Antenna Info *. -=2SKMXM=- -=25ZBRG=- SWR3:SWL:INFO *. Thanks. Looking all these sites up over the weekend. Great list.!! |
#7
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On Jul 1, 7:28*pm, "
wrote: On Jun 30, 9:06*pm, Telamon wrote: In article , " wrote: Was at a field day thing this past weekend. *I wasn't there when they set everything up. *There were 3 antennas in use. *One very clearly was a Yagi. *One of the others very clearly was a "vertical" and the other one was like a wire running the length of the parking lot and was up about as high as the building - then it had a middle wire running in to the shack with the radio. *I was told that was a horizontal antenna. *Isn't there more specific names for vertical and horizontal antennas than just vertical and horizontal?? The terms vertical and horizontal refer to the polarization of the electric field the antenna operates on not the type. A Yagi antenna can be vertically or horizontally polarized for example. -- Telamon Ventura, California Thanks - actually I was wondering if one of them might have been a beverage antenna because it was really long - but then the feed point was in the middle so I guess not. *Thanks for the info - I appreciate it.- Hide quoted text - - Show quoted text - Beverage Antenna http://en.wikipedia.org/wiki/Beverage_antenna Beverage Antenna Construction http://www.w8ji.com/beverages.htm Beverage Antenna Tips -by- N1EU http://n1eu.com/topband/BeverageTips.htm The Beverage Antenna -by- Hardcore DX .Com http://www.hard-core-dx.com/nordicdx...age/index.html The Beverage Antenna Memorandum [FCC Report] http://www.ae5d.com/bev/ Beverages On the Ground [BOG] -by- Shawn Axelrod http://www.angelfire.com/mb/amandx/bevant.html |
#8
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On Jul 2, 11:32*am, RHF wrote:
Beverage Antennahttp://en.wikipedia.org/wiki/Beverage_antenna Beverage Antenna Constructionhttp://www.w8ji.com/beverages.htm Beverage Antenna Tips -by- N1EUhttp://n1eu.com/topband/BeverageTips.htm The Beverage Antenna -by- Hardcore DX .Comhttp://www.hard-core-dx.com/nordicdx/antenna/wire/beverage/index.html The Beverage Antenna Memorandum [FCC Report]http://www.ae5d.com/bev/ Beverages On the Ground [BOG] -by- Shawn Axelrodhttp://www.angelfire.com/mb/amandx/bevant.html *.- Hide quoted text - - Show quoted text - I love beverage antenna's when you can get one out, but today's overdeveloped areas make it hard to find a place. Much is written about beverage antenna's, books and books in fact going into great technicality. But here in South Africa we just throw out a bit of wire and get great results. My pal Gary in Cape Town just runs out 220m/700 ft of wire called a BOG, beverage on the ground, just on his suburban road outside his house, or at best he goes down to the local sportsfield and runs it out there. He gets amazing results from this. Of course the purists will tell you that the beverage has to be dead straight, terminated into a resistor and supported about 1.2m/5ft off the ground, but in years of playing with these antenna's we have got great results with a not too perfect layout and no termination. Give it a try and have fun - you will be well rewarded with some super catches. John Plimmer, Montagu, Western Cape Province, South Africa South 33 d 47 m 32 s, East 20 d 07 m 32 s Icom IC-7700, Icom IC-756 PRO III with MW mods ERGO software Drake SW8. Sangean 803A Sony 7600D, GE SRIII, Redsun RP2100 Antenna's RF Systems DX 1 Pro Mk II, Datong AD-270 Kiwa MW Loop. http://www.dxing.info/about/dxers/plimmer.dx |
#10
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On Jul 3, 11:43*am, dxAce wrote:
The termination at the far end only solves the problem of the antenna being bi-directional, that is of course receiving signal from both the direction the wire is running (and, off the back end where it is fed). Did have a place accessible to me at one time where we had 6 permanent Beverage antennas set up, all terminated. A very nice place to DX, but always a lot of repair work on the wires as they ran through a wooded area. We don't terminate here for two reasons: 1. the ground here is too dry and you can't get a proper earth 2. We actually like the open end in both directions as one end you get Aussie and the other end N. America. Like a double whammy. So you can DX Aussie at sunset/evening and N. America mornings/ sunrise. Makes the DXpeditions quite worthwhile. Wow! a six beverage site = sheer DX heaven! Ya, that's a problem with long beverages - people and animals walking all over them and pulling them down. Another problem here is the high price of copper will see your wire stolen from right under your nose while you are busy DXing these days in mwaAfrika. JP |
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