Forum: Antennas & Propogation

Hal, This arrangement worked well for me in a townhouse. I don't remember the dimensions, but the eave side was just above the metal siding. It is a dipole More...

I live in a neighborhood with a restrictive covenants against antennas and would like to put one in my double height attic ? What are the issue with doing More...

OK Al, good stuff, glad your happy. I am posting LFAs for HF now too but if you want to stick with OWAs then perhaps too I can model something for you. I More...

Hi dr Justin! Thanks for replay! Soon I'll send you the details from the antenna I plan to build and if you have some time and patience say what you can More...

Ha guy i am looking for a good mobile antenna not a ham stick or hustler maybe a atas120a or a Little Tarheel II (used)prefer the Little Tarheel II because it More...

Antennas and related items For Sale: Tower, Mast, Full Power Antenna Tuner, Wattmeters and SWR Bridges, Lightning Protectors, VHF and UHF Mobile antennas, Coax More...

Thanks for your advice. From: Kyle N4NSS Sent: Sunday, September 05, 2010 8:29 AM To: ham-antennas@yahoogroups.com Subject: Re: Do I need it or More...

You will need the FC-30 for the whip and hamsticks. Don't sell the FC-30 just in case you go portable ops. Apartment living will most likely give you high QRN, More...

I beleive you will not be able to use the FC-30 tuner.## Only the "tuner" supplied with the MFG HI-Q.## The MFJ tuing deveice is actually moving a variable More...

Being in an apt. I recewntly purchased a MFJ-1786 super hi-q antenna and Yaesu FT-897d wit hthe FC-30 auto tuner. I have never used a tuner since I got my More...

hi Al, That depends on the design. However, if you electrically connect the elements it is more likely some level of correction will need to be applied to the More...

Hi! Need some help now that I plan to build a OWA yagi I know most of characteristics of a OWA (Optimized Wideband Array)yagi but there is something I'm not More...

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________________________________ From: kk4ej To: ham-antennas@yahoogroups.com Sent: Sat, September 4, 2010 8:51:35 AM Subject: More...

Simple answer: You hertz your hand when building a antenna and run cycles around in the yard saying bad words.....not that I EVER done that myself.... More...

http://averkiy1417.nm.ru/qanenake.html More...

Hi guys, I bought the odds and ends I need to add 17 and 12 meters to my trap vertical yesterday. I haven't used this antenna for many years, it is from a More...

Eamon, That is a great tool that I have not seen before. Thanks for the cool tip!! 73, Darren K5QB ... From: Eamon Egan Reply-To: More...

IF THIS GROUP IS SO TECHNICAL THEN "WHY" ARE THEY SO THICK-HEADED ABOUT DELETING THE PREVIOUS POST ON THE REPLIES? I get the Digest version of the posts and to More...

Yes, I was joking. I wanted to add some to all of the conversions. Some where in my old files I have a conversion chart that was given to me back when Hertz More...

I understand. One that used cycles in my early career I have been forced to change but it sure Hurts Doyle K5HTE ... From: "VE3FAL-Fred" More...

I did have an RF Choke across it originally, but teh choke went bad while I was doing antenna tuning, To make a long story short, with high SWR during the More...

We all live and learn to bad you had to learn the hard way. I read on the engineering web page a while back that this can be common place for dry states and More...

Believe me when I tell you that static bleed off is a wise choice. My vertical had static on it is a wind storm and when I disconnected the coax there was a More...

ARRL handbook says ground rod##is needed for static bleed off for roof mounted verticals also stated in hygain instruction manual, just going by the books. You More...

Bleed off only occurs if you have a bleed resistor or choke across the feedpoint, ground rod or no ground rod. Otherwise there is no path for the bleed. Dan More...

To bleed off what? Static? Possibly. Nothign else and saying "a ground rod is necessary" without explaing why just ads to the continuing misunderstanding about More...

No one mentioned Google Calculator yet. It rocks! Google ?c in furlongs / fortnight? Or more to the point, to calculate a quarter wavelength on a 66% VF More...

The hertz is named after the German physicist Heinrich Hertz, who made important scientific contributions to the study of electromagnetism. The name was More...

thank you all for replying too my question very useful and welcome ,i will digest and take note of all thats been said and yes i think ground planes /wires are More...

No such thing Cycles= Hertz## ?? 1000 HZ IS THE SAME AS 1000 CYCLES ________________________________ From: Doyle H To: More...

A ground rod is needed for bleed off and remember we are talking about a Hustler vertical ## ________________________________ From: Michael Goins More...

Well maybe now. But then, when there was no "Hertz" when the term "cycles" was used; it was understood that it meant cycles per second. RR ... Richard A. More...

Oh, I can't resist this one. Actually Cycles and Hertz are not the same thing. A cycle is one wave. Hertz is how many cycles occur in a second. Kinda like the More...

28.12 x 10^9 ________________________________ From: AB2ZY To: ham-antennas@yahoogroups.com Sent: Wed, September 1, 2010 10:32:45 PM More...

No two installations are identical and both ground mounted and elevated can be made to work. A good radial system is always needed. Just what will be a "good" More...

Quick, who can tell me the speed of light in furlongs per fortnight? Al AB2ZY More...

That?s OK Doyle , I got it. Rich , KD?ZZ I know that you believe that you understood what you think I said, but I am not sure you realize that what you More...

I think it's 1:1 isn't it. 60 cycle/60 hertz Happy QSO'ing. Mike R More...

Your joking, right? Cycles and Hertz are the same thing. Dan Schaaf My Chocolate Lab is smarter than your honor roll child ================================== More...

I am looking for a chart to convert Cycles to Hertz. Doyle K5hte More...

Gordon, I also live in Florida and I had 20 radials 20 ft long each on my 6BTV and it worked very well. When you add radials, the radiation resistance ( More...

I have the 5 band version of your same antenna. It is mounted on the roof of my two car garage, probably about 12 feet off the ground. I cut two approx 1/4 More...

My verticals are within 15 to 20 ft of the hopuse and they work great. Radials do not have to be the same length. Some can be 20 ft, some 30 ft , some 5 ft, More...

Any quarter wave vertical - a commercial half wave vertical (R-7, R-8 type, for example) doesn't have radials. And a ground rod is essentially useless as a More...

water (rain) will follow the coax down the vent pipe and flow thru the hole the coax runs thru into the shack, how do I know? Do you really need to ask? I More...

Hi Ken, Yes, very interesting, thanks for posting! Some good ideas there. I have some ideas too, been thinking about this project all afternoon. Heading out to More...

You mean inside a plumbing vent pipe## ? ## ... From: mwallred Subject: Re: Coax through window To: More...