Author: Charlie Ocker via Antennaware <antennaware@contesting.com>
Date: Wed, 09 Jul 2014 06:39:52 -0500
Hi gang, I'm trying to verify a YO generated 20m yagi in EZNEC (version 3.x). I am using tapered tubing. The first taper on the DE is 36" of 1.25" diameter tubing. The DE is split, and there is 1.0"
Author: Charlie Ocker via Antennaware <antennaware@contesting.com>
Date: Wed, 09 Jul 2014 17:59:13 -0500
Hi Guy - Thanks for the thoughtful response. What I was trying to do is model the effect of the actual split DE and it being fed by #12 wire balun leads. Maybe this is overkill. It does make sense th
Author: Charlie Ocker via Antennaware <antennaware@contesting.com>
Date: Wed, 09 Jul 2014 21:42:24 -0500
Hi Matt - Thank you for the useful information! I really do appreciate it. I believe that I have convinced myself that the YO generated design is close enough to begin construction. EZNEC 3.0 agrees
Author: Charlie Ocker via Antennaware <antennaware@contesting.com>
Date: Thu, 10 Jul 2014 07:12:07 -0500
Hi Matt, The gain is free space. I am 100% on board with the merits of hairpin matching. My other homebrew yagi, a 5el 15m, is hairpin matched. I have another optimization set of results for my 20m y
Author: Charlie Ocker via Antennaware <antennaware@contesting.com>
Date: Thu, 10 Jul 2014 07:18:39 -0500
Hi Joe - Thank you for the tips! I was mainly trying to use EZNEC to validate the YO generated design. YO has the ability to account for balun leads - both length and wire size - as well as the spaci
Author: Bengt via Antennaware <antennaware@contesting.com>
Date: Fri, 11 Jul 2014 04:31:15 -0400 (EDT)
For Charlie, Please provide the article and spreadsheet you mentioned. Thanks and 73. Ben AB4AB Hi Matt, The gain is free space. I am 100% on board with the merits of hairpin matching. My other homeb
Author: Charlie Ocker via Antennaware <antennaware@contesting.com>
Date: Sun, 03 Aug 2014 21:23:16 -0500
Hi gang, Is there anyone who has EZNEC with the NEC-4 engine that would be willing to verify a yagi design from EZNEC v3.0 (NEC-2 engine)? If so, please contact me off list. Many thanks in advance! 7
Author: Bengt via Antennaware <antennaware@contesting.com>
Date: Sat, 23 Aug 2014 11:11:41 -0400 (EDT)
Hi, Trying to decide on which T-match to use for a 144 MHz Yagi. K1FO is using a 4:1 balun for a 200 ohm T-match setting while KK1CW is using a 1:1 balun for a 50 ohm T-match setting. Pros and cons?
Author: Joe via Antennaware <antennaware@contesting.com>
Date: Tue, 11 Apr 2017 13:04:38 -0400
Gents, I just joined this list. I hope it's OK to advertise items for sale. I have a Force 12 EF-230 for sale. It's two linear-loaded elements on a 12 foot boom. It weighs 20 pounds and has a turning
Author: Everett Sharp via Antennaware <antennaware@contesting.com>
Date: Sat, 18 Nov 2017 09:00:31 -0600
Well Guys, Just joined the list and have been operating on 160 Meters now for about 2 weeks. The antenna is Inverted L, which is 52 vertical and 103 horizontal. Currently have 4, on the ground, 1/4 w
Author: Everett Sharp via Antennaware <antennaware@contesting.com>
Date: Sat, 18 Nov 2017 14:54:52 -0600
Guy, Thanks for the reply and I did read all of the material on your web site, a lot of very good info. I will go with your recombination of staying with 12 gage bare wire and incorporate your sugges
Author: Robert Scott via Antennaware <antennaware@contesting.com>
Date: Tue, 18 Sep 2018 15:15:44 +0000 (GMT)
IN the K2AV page on the FCP+ there is a comment about modifying a DPDT relay when using it for shortening the FCP for the 80 meter EFHW. SOmething about modifying it for better isolation. CAn someo
Author: Andrew Ikin via Antennaware <antennaware@contesting.com>
Date: Sun, 03 Feb 2019 18:11:27 -0500
Is there any reason why most resistor terminated antennas like the K9AY and the Flag use a matching transformer to the Rx feed line that has the same impedance as the termination resistance. The reas
Author: Andrew Ikin via Antennaware <antennaware@contesting.com>
Date: Tue, 05 Feb 2019 06:43:14 -0500
Hello Ward, I think I need to rephrase my email. What I am trying to say is, a small terminated antenna e.g. a Flag or a Waller Flag is noise limited by the termination resistor. This is because the
Author: Joe via Antennaware <antennaware@contesting.com>
Date: Tue, 5 Feb 2019 15:45:55 +0000 (UTC)
Hey Ward, et al, This is not related to the original topic but you mentioned BOG antennas and I have a question.Is installing a BOG near the ground system of an Inverted-L dangerous for a receiver? S
Author: Joe via Antennaware <antennaware@contesting.com>
Date: Tue, 5 Feb 2019 16:01:49 +0000 (UTC)
Thanks Ward! Yes, it could very well be. Antennas close (electrically) to transmitting antenna systems are exposed to large fields and could pickup enough voltage to damage a sensitive input. It's
Author: Joe via Antennaware <antennaware@contesting.com>
Date: Tue, 5 Feb 2019 18:42:41 +0000 (UTC)
Thanks Brent There are products to protect your receiver that are available from DX Engineering however,depending on your radio,it might have the option to switch between antennas automatically. The
Author: Robert Scott via Antennaware <antennaware@contesting.com>
Date: Wed, 6 Feb 2019 12:29:01 -0600
Here is a link to the BOG in action; https://www.facebook.com/272355476187337/posts/2140150649407801/ Brent Scott WR5O _______________________________________________ Antennaware mailing list Antenna
Author: Warren Wolff via Antennaware <antennaware@contesting.com>
Date: Sun, 3 Mar 2019 17:03:39 +0000 (UTC)
I monitor this list occasionally. Warren; W7WY Today's Topics: 1. Anyone monitoring this list (dgb) -- Message: 1 Date: Sun, 3 Mar 2019 11:51:49 -0500 From: dgb <ns9i@bayland.net> To: antennaware@