Hi All, My original thread seems to have died, still wondering how the folded loop is matched to 50 ohms. (probably isn't? cheap, but works?) I've added a dimensional drawing and some more pics. If more info is needed let me know. Here is a drawing and some more...

Wow, the crazies must be having fun today. Out of 67 new posts, only one didn't go to my bozo bin. That guy from Radiobanter must be tearing his hair out...... - 73 de Mike N3LI -

Has anyone else noticed that the Prudential commercial on TV is sending SMS instead of SOS? -- 73, Cecil, IEEE, OOTC, http://www.w5dxp.com

Off topic though this certainly is, I'm posting this because I know that several people who frequently post in rraa have one or more patents, and there have over the years been a number of comments here about the sorry state these days of patents and the patenting process in the USA. Moreover,...

Cebic found when comparing different style programs that some behaved well in certain circumstance where others did not. Yet all antenna programs are based on the use of Maxwells equations where all programs should have the same results, after all Maxwells equations are exact and not fudged. One of...

from http://unwinantennas.com/: "The Sun is very hot because it is burning. Burning as we know it produces soot and other by products in abundance that when these particles collect in the air they become visual to the eye as smoke even tho the particles themselves are invisible to the eye...

Hi All, I'm having a disagreement about the use of this folded dipole calculator impedance calculator. http://www.k7mem.150m.com/Electronic_Notebook/antennas/folded_dipole.html We are using it to calculate the impedance of folded dipoles to drive a yagi. When entering data it asks for "Simple...

Angry WHY is it spammers and assorted other trash are posted in the WRONG forums?? If EVERYONE would pay attention to what the hell they're posting,then this site would be more enjoyable for everybody here!!! Politics crap does NOT belong in the shortwave forum!!!! Garbage from you tube does NOT...

http://www.radioamateur.it/public/mercato/index.php Mercatino dell'usato per radioamatori interamente realizzato da iz4hyz ( Ezio Tulli ) vuole essere un servizio per permettere l'incontro di tutti quegli appassionati di radio (RADIOAMATORI E NON) che vogliono scambiare materiale radiantistico. Qui...

Your statement: The fellow I'm disagreeing with say's, "the reason that the variable in the calculator for the "dipole feed impedance" could be if you want to transform the z to something else, such as 50 ohms." I don't even understand what he means. My thoughts: My radio output impedance is...

I'm in the process of putting up a 4 element 6 meter beam. I'd like it to be balanced but that means I'll be attaching it to my pole half way between the driven element and first director. This is a 2" diameter aluminum pole and I'm concerned that it will interfere with the pattern. Can anyone say...

What is the best antenna for use with all circular, horizontal, vertical and other polarizations without drastic fall of in gain, and without changes in angular position and feed point via switches e.t.c at the tower top?

Greetings: Building a 4 square antenna system: How should I tune each element? should I place a 50 ohm load on three elements then tune up one using my MFJ 259 after that element is tuned place the 50 ohm load on it then tune up the next element repeat till all have been tuned? OR...

Hi all, I'm trying to get an understanding of the MFJ-1800 wifi antenna. The antenna has a folded loop as the active element. Is this considered to have a 300 ohm output impedance? The folded loop is connected to 2.11 inches of 50 ohm coax that goes to an N connector. The coax has 4 torroids on...

Hi all, I'm looking for the instructions manual of the "Remote Programmable Antenna Rotator AR500". I bought one at a local 2nd-hand-ham-market but I can't use it without the manual. Has anybody a scan of it ? Or does anybody know a link to download it? I would be very gratefull if I found any...

I have a 5/8 wave 136 - 230 Mhz, looking for something 2.4 2.5 Ghz.

I am at a loss to understand the L Network function in EZNEC + 5.0. Should one be able to model an L match to a short (or long) vertical with this resource? If so, how about an example please? John Ferrell W8CCW

"Sal M. Onella" wrote in : "Plexus" wrote in message ... snip Morse is FUN.

Because of an antenna unfriendly neighborhood and limited space I am considering using a Diamond antenna either with or without radials, specifically X-50 vs SE-100. They are the same length, but the SE-100 is a "marine" antenna without radials. Nominally they both sport the same gain etc. What...

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