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QRZ Forums - Antennas, Feedlines, Towers & Rotors for Tuesday 23 May 2017 by QRZ.com via rec.radio.amateur.moderated Admin
Antennas, Feedlines, Towers & Rotors /////////////////////////////////////////// Simulation Fun: Rotary 5-Band Antennas - Let's Compare Them Posted: 23 May 2017 12:37 AM PDT https://forums.qrz.com/index.php?threads/simulation-fun-rotary-5-band-antennas-lets-compare-them.509211/ In this thread, I...
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QRZ Forums - Antennas, Feedlines, Towers & Rotors for Monday 22 May 2017 by QRZ.com via rec.radio.amateur.moderated Admin
Antennas, Feedlines, Towers & Rotors /////////////////////////////////////////// Tuning 40m Traps? Posted: 21 May 2017 06:11 PM PDT https://forums.qrz.com/index.php?threads/tuning-40m-traps.566602/ Ime making a pair of 40m traps for an antenna project. Not with coax, but with std twisted...
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QRZ Forums - Antennas, Feedlines, Towers & Rotors for Sunday 21 May 2017 by QRZ.com via rec.radio.amateur.moderated Admin
Antennas, Feedlines, Towers & Rotors /////////////////////////////////////////// QST June 2017 pg 47 Posted: 21 May 2017 12:49 AM PDT https://forums.qrz.com/index.php?threads/qst-june-2017-pg-47.567390/ For anyone who might be interested in the details of modeling a coupled-resonator set of...
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QRZ Forums - Antennas, Feedlines, Towers & Rotors for Saturday 20 May 2017 by QRZ.com via rec.radio.amateur.moderated Admin
Antennas, Feedlines, Towers & Rotors /////////////////////////////////////////// When building a multi-band antenna how do you decide to insert a Trap? Posted: 19 May 2017 09:52 PM...
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QRZ Forums - Antennas, Feedlines, Towers & Rotors for Thursday 18May 2017 by Catweazel
On 18/05/2017 17:55, highlandham wrote: On 18/05/17 09:47, QRZ.com via rec.radio.amateur.moderated Admin wrote: I have a friend, John, KK4QKL, who has a house with a small yard. Its so small, that when I put up a 20 meter dipole, I had to bend it in half to get it to fit. Kind of like...
May 20th 17 02:05 AM
by Catweazel Go to last post
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QRZ Forums - Antennas, Feedlines, Towers & Rotors for Friday 19 May 2017 by QRZ.com via rec.radio.amateur.moderated Admin
Antennas, Feedlines, Towers & Rotors /////////////////////////////////////////// low height non symmetrical horizontal loop Posted: 19 May 2017 01:03 AM PDT https://forums.qrz.com/index.php?threads/low-height-non-symmetrical-horizontal-loop.567131/ I have an opportunity to put up a horizontal...
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The Pixie, cont'd by Gareth's Downstairs Computer
Continuing the theme to get Foundation Licence candidates interested in _REAL_ amateur radio, which means, of course, homebrew and CW QSOs, as well as the Pixie as a starter rig for only a couple of pounds, we need to consider an appropriately easy antenna for them, easy to build, and, more...
(Multi-page thread 1 2)
May 19th 17 06:59 AM
by AndyW Go to last post
13 49
What does the field look like in 3D? by Gareth's Downstairs Computer
Having spent all day using VHF PMR hand helds in my alter ego as a fence judge at an equestrian cross-country, I began to muse as to how the EM field transitions from the near field around the helicoidal antenna to become the radiating wave. This is the point at which you realise that Maxwell's...
May 13th 17 10:29 PM
by Gareth's Downstairs Computer Go to last post
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Where's Chip when you need him! by amdx[_3_]
This newsgroup is very slow. I remember fondly when Chip was here taking a beating here for discussing his Fractal Antenna. At least there was some enthusiasm shown. Mikek
(Multi-page thread 1 2 3 ... Last Page)
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Fractenna frightens and confuses me. by [email protected]
On Thursday, April 6, 2000 at 3:00:00 AM UTC-4, Unclaimed Mysteries wrote: I've been to www.fractenna.com and seen a content-rich web site put together by what seems to a group of reasonable people. 73, Corry K4DOH As Corry pointed out 17 years ago--and as Google continues to list as...
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Your antennas? by Gareth's Downstairs Computer[_2_]
The HF antenna here is a G5RV, dangling down at one end in order to fit in. 2M has a colinear which I picked up at the Flight Refuelling rally 13 years ago, and is performing really well since being moved atop the TV aerial pole. Packed away is a J Beam 6 by 6 crossed yagi which did give me PA on...
April 28th 17 03:57 PM
by Gareth's Downstairs Computer Go to last post
2 33
Fractal Antennas by rickman
Ok, I was invited to start a new thread and the very strange person who invited me to do this seemed to say he would not be participating, so here it is. Anyone have experience with fractal antenna design? I know I have seen a little bit about it, but no theoretical analysis. -- Rick C
April 28th 17 03:38 AM
by Jim H Go to last post
7 46
Fractenna frightens and confuses me. by [email protected]
On Thursday, April 6, 2000 at 3:00:00 AM UTC-4, Fractenna wrote: FWIW, consider this my last word on the subject of your safety and well-being. From now on, I will assert my 1st Amendment right to be brilliant, funny, serious, or dumber-than-nine-chickens. Selah. 73, Corry K4DOH ...
(Multi-page thread 1 2 3 ... Last Page)
38 111
Fractenna frightens and confuses me. by [email protected]
On Thursday, April 6, 2000 at 3:00:00 AM UTC-4, Fractenna wrote: FWIW, consider this my last word on the subject of your safety and well-being. From now on, I will assert my 1st Amendment right to be brilliant, funny, serious, or dumber-than-nine-chickens. Selah. 73, Corry K4DOH ...
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Antenna for Marine VHF by rickman
A kayaking friend was asking me about antennas for marine VHF radios. Someone recommended this type of antenna. http://www.amateurradio.bz/2m-70cm_vertical_dipole_antenna.html I guess my first question is what would this be dual band? Is it because it works over a range from 2 meters to 70 cm?...
(Multi-page thread 1 2 3 ... Last Page)
April 27th 17 03:35 AM
by Jeff Liebermann[_2_] Go to last post
69 181
Wild life safaris by Gareth's Downstairs Computer
When you consider the reduction in the size of antennae when going from dipoles et al to magnetic loops, I wonder why those on wildlife safaris who have attached beacons to animals use full size yagi-udas to track the animals? Surely the same reduction in size should be possible with mag loops for...
April 8th 17 07:32 PM
by Jeff Liebermann[_2_] Go to last post
3 58
EZNEC File for J Pole by [email protected]
Chris, could you send me a copy of you jpole eznec file and thanks. Darryl, KK5IB
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Vote by Brain Realy
There's a vote happening that could be of interest to you if you are a user of amateur radio groups. If you are, add uk.net.news.announce to your list of subscribed forums - there you'll find the Call for Votes, which has instructions of how you can express your interest (by voting). If...
April 2nd 17 01:43 PM
by Brain Realy Go to last post
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[PA8E] FYM-Delta-loop antenna by PA3FYM by PA8E via rec.radio.amateur.moderated Admin
PA8E (former PA1JIM) /////////////////////////////////////////// FYM-Delta-loop antenna by PA3FYM Posted: 24 Mar 2017 11:31 PM PDT https://pa1jim.nl/fym-delta-loop-antenna-pa3fym/ Remco PA3FYM is a big inspiration of many of my projects. This time he
March 26th 17 02:31 PM
by PA8E via rec.radio.amateur.moderated Admin Go to last post
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Ping spike roger jim rambo fred and all other real radio amateurs by Gareth's Downstairs Computer
Should the worst come to the worst and the lord voldemorts have their way and uk.radio.amateur be removed, where shall we congregate to continue discussion about the gentlemanly and technical traditions of real (12WPM?) amateur radio? Insofar as much of our discussions relate to antennae and wave...
March 21st 17 09:06 PM
by Gareth's Downstairs Computer Go to last post
9 100
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