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Total 42 documents matching your query.

1. [TenTec] Zepp? (score: 1): Author: "John F." <k4avx1@windstream.net>; Date: Wed, 10 Sep 2014 10:15:45 -0400; Jim, I like the sound of Zepp better than dipole. Actually it's probably a matter of semantics, and I'm not going to argue how many angels will fit on the head of a pin! ;>) There is a reason I calle; /archives//html/TenTec/2014-09/msg00115.html (8,646 bytes)
2. Re: [TenTec] Zepp? (score: 1): Author: Joel Hallas <jrhallas@optonline.net>; Date: Wed, 10 Sep 2014 10:45:56 -0400; Gents, This is an interesting antenna idea, and I did a quick EZNEC/TLW look on the 5 major HF bands. Unfortunately, the SWR ranges from a low of 5:1 (80 and 10 meters) to 11:1 on 40. 100 feet of RG-; /archives//html/TenTec/2014-09/msg00116.html (9,618 bytes)
3. Re: [TenTec] Zepp? (score: 1): Author: Jim Allen <jim.allen@longhornband.net>; Date: Wed, 10 Sep 2014 09:52:16 -0500; That's what I have now, except instead of a balun, I match with an AH-4 remote autotuner which handles it with ease, as long as you don't want to run more than ~120 watts, which I don't. It works fai; /archives//html/TenTec/2014-09/msg00117.html (10,985 bytes)
4. Re: [TenTec] Zepp? (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Wed, 10 Sep 2014 17:11:06 +0200; Hi Joel, Rather than 2x 20m legs, try dropping the lengths to 2x 17m. That should tame 40m a bit without adding any significant loss to 80m. 73 - Rick, DJ0IP (Nr. Frankfurt am Main) Gents, This is an; /archives//html/TenTec/2014-09/msg00118.html (10,626 bytes)
5. Re: [TenTec] Zepp? (score: 1): Author: Paul Gates via TenTec <tentec@contesting.com>; Date: Wed, 10 Sep 2014 08:29:00 -0700; I do not know what you mean by putting Balun at bottom? I place my balun between the openline and the tuner. 130 ft attenna then the SWR is 1:1 on all bands. Paul Gates KW4BD ________________________; /archives//html/TenTec/2014-09/msg00119.html (10,917 bytes)
6. Re: [TenTec] Zepp? (score: 1): Author: Joel Hallas <jrhallas@optonline.net>; Date: Wed, 10 Sep 2014 11:59:46 -0400; That's what I mean by "at the bottom," at the bottom of the feed line rather than at the top where the antenna is. The SWR is not improved, but the loss is reduced. Regards, Joel Hallas, W1ZR Westpor; /archives//html/TenTec/2014-09/msg00120.html (12,220 bytes)
7. Re: [TenTec] Zepp? (score: 1): Author: Don Jones <ko7i@comcast.net>; Date: Sat, 13 Sep 2014 07:12:31 -0700; I am using a 34 ft doublet / zepp for 20M and above. I feed it with 100ft of #16 420 ladder line that can be purchased from radio works. I am using a 4:1 DX Engineering 10kW-pk rated balun. The anten; /archives//html/TenTec/2014-09/msg00146.html (13,194 bytes)
8. Re: [TenTec] Zepp? (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Sat, 13 Sep 2014 08:01:00 -1000; One strange misbehavior I have found that my MFJ 929 auto tuner lockup if placed near the 4:1 balun (i.e. using a 2 ft jumper of RG213). requiring power to be cycled to regain its brain. An auto tune; /archives//html/TenTec/2014-09/msg00148.html (8,024 bytes)
9. Re: [TenTec] Zepp? (score: 1): Author: Richards <jrichards@k8jhr.com>; Date: Sat, 13 Sep 2014 15:04:26 -0400; Should he be using a balun AND a remote tuner? I removed the balun and replaced it with a remote tuner. -- K8JHR -- One strange misbehavior I have found that my MFJ 929 auto tuner lockup if placed ne; /archives//html/TenTec/2014-09/msg00149.html (9,098 bytes)
10. Re: [TenTec] Zepp? (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Sat, 13 Sep 2014 21:19:38 +0200; Don, you did not tell us what band(s) you are having this problem on. The problem is most likely due to common-mode current on the line. In this situation, the 12 ft. of coax is about 1/5 wavelength; /archives//html/TenTec/2014-09/msg00150.html (15,694 bytes)
11. Re: [TenTec] Zepp? (score: 1): Author: k6jek <k6jek@comcast.net>; Date: Sat, 13 Sep 2014 12:31:56 -0700; Rick, Gosh, that makes sense but it never occurred to me. Thanks for that little bit of education. Jon _______________________________________________ TenTec mailing list TenTec@contesting.com http:/; /archives//html/TenTec/2014-09/msg00151.html (8,335 bytes)
12. Re: [TenTec] Zepp? (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Sat, 13 Sep 2014 22:44:41 +0200; Joh, which bands did you try to use it on? 20m and above or did you also try 40 or 80? Which bands were you having trouble with? Common mode current is not constant along a length of coax. Its intens; /archives//html/TenTec/2014-09/msg00152.html (9,582 bytes)
13. Re: [TenTec] Zepp? (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 13 Sep 2014 16:00:28 -0500; My first thought is one should be using a 1:1 balun which would be a current balun and not a 4:1 voltage balun. The described antenna would likely have a feed point Z of about 75 ohms, based on lengt; /archives//html/TenTec/2014-09/msg00153.html (15,475 bytes)
14. Re: [TenTec] Zepp? (score: 1): Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>; Date: Sat, 13 Sep 2014 23:38:02 +0200; Bob is fully correct. It would be much better to use a 1:1 balun. I think the 4:1 DX-E balun is a current balun (not certain); if not then it is totally out of place for this job, regardless of what; /archives//html/TenTec/2014-09/msg00154.html (18,802 bytes)
15. Re: [TenTec] Zepp? (score: 1): Author: "Augie \"Gus\" Hansen" <augie.hansen@comcast.net>; Date: Sat, 13 Sep 2014 19:12:55 -0600; On 9/13/2014 3:38 PM, Rick - DJ0IP / NJ0IP wrote: ... Final note: is it 4:1 or 1:4? Gosh I don't know. Sevick defined it one way, but the vendors selling these devices call it the other way. Let's fo; /archives//html/TenTec/2014-09/msg00155.html (9,129 bytes)
16. Re: [TenTec] Zepp? (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 13 Sep 2014 20:13:20 -0500; My take is to bring the balanced line all the way inside to the tuner. There is certainly no harm in that. At the tuner output use a 1:1 current balun between the tuner and the balanced line. A short; /archives//html/TenTec/2014-09/msg00156.html (11,480 bytes)
17. Re: [TenTec] Zepp? (score: 1): Author: Richards <jrichards@k8jhr.com>; Date: Sat, 13 Sep 2014 21:36:32 -0400; Yes.... so, I try my question again: Why does he need a balun? Why not just connect the tuner to the feed line and skip the balun ? Here is why I ask: The tuner will take itself off line whenever SWR; /archives//html/TenTec/2014-09/msg00157.html (10,437 bytes)
18. Re: [TenTec] Zepp? (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 13 Sep 2014 20:55:35 -0500; I been puzzled by the most frequent and most common uses of the 4:1 balun. It seems that hams believe necessary to use a balanced feed system, open wire line and such that they must employee a 4:1 ba; /archives//html/TenTec/2014-09/msg00158.html (12,373 bytes)
19. Re: [TenTec] Zepp? (score: 1): Author: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>; Date: Sat, 13 Sep 2014 20:59:09 -0500; Because the MFJ 929 tuner only has unbalanced outputs thus no provision for feeding a balanced load. 73 Bob, K4TAX Yes.... so, I try my question again: Why does he need a balun? Why not just connect; /archives//html/TenTec/2014-09/msg00159.html (11,752 bytes)
20. Re: [TenTec] Zepp? (score: 1): Author: Richards <jrichards@k8jhr.com>; Date: Sat, 13 Sep 2014 22:17:50 -0400; OK... I thought he could use the wire binding post, and the ground connector, for balanced line. If not... never mind. I get it. -- K8JHR -- __________________________________________ _______________; /archives//html/TenTec/2014-09/msg00160.html (9,889 bytes)

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