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Total 30 documents matching your query.

1. [TowerTalk] VNA (score: 1): Author: Neal Sulmeyer <Neal@k4ea.net>; Date: Mon, 30 Oct 2017 20:29:43 -0400; My MFJ 259B is 25 years old and obsolete. Time for an upgrade. I'm considering the AIM 4300 (updgrade to the AIM4170 recommended by ON4UN). I would like to hear some opinions on this device and other; /archives//html/Towertalk/2017-10/msg00546.html (7,184 bytes)
2. Re: [TowerTalk] VNA (score: 1): Author: Richard Solomon <dickw1ksz@gmail.com>; Date: Mon, 30 Oct 2017 17:39:06 -0700; I have the AIM-4170C and a really old MFJ-259. The AIM-4170C is a very useful tool in the shack, where I can hook it up to a computer and do detail analysis. But, when outside, at the Antenna, I alwa; /archives//html/Towertalk/2017-10/msg00547.html (8,204 bytes)
3. Re: [TowerTalk] VNA (score: 1): Author: "Tim Duffy" <k3lr@k3lr.com>; Date: Mon, 30 Oct 2017 20:47:18 -0400; HI Neal: Check out the RigExpert 230ZOOM. It works great on all bands - even on 160 close to AM broadcast stations, no problems at all. The MFJ-259 cannot handle AM broadcast - as it will give error; /archives//html/Towertalk/2017-10/msg00548.html (9,346 bytes)
4. Re: [TowerTalk] VNA (score: 1): Author: "Larry Banks" <larryb.w1dyj@verizon.net>; Date: Mon, 30 Oct 2017 20:52:57 -0400; Neal, Be sure to check out the SARK-110 from SteppIR. 73 -- Larry -- W1DYJ My MFJ 259B is 25 years old and obsolete. Time for an upgrade. I'm considering the AIM 4300 (updgrade to the AIM4170 recomme; /archives//html/Towertalk/2017-10/msg00549.html (7,482 bytes)
5. Re: [TowerTalk] VNA (score: 1): Author: charlie carroll <k1xx@k1xx.com>; Date: Mon, 30 Oct 2017 20:57:44 -0400; Neal: Check out the VNWA3E designed by DG8SAQ and sold thru sdr-kits.net in the UK. 73 charlie, k1xx I would like to hear some opinions on this device and others from my fellow TowerTalkers. Neal, K4; /archives//html/Towertalk/2017-10/msg00550.html (8,309 bytes)
6. Re: [TowerTalk] VNA (score: 1): Author: Richard Solomon <dickw1ksz@gmail.com>; Date: Mon, 30 Oct 2017 17:57:42 -0700; One of the benefits of living in the High Desert ... the closest AM station is a whopping S6 on the FTDX-5KMP !! The MFJ isn't bothered by it. 73, Dick, W1KSZ ________________________________________; /archives//html/Towertalk/2017-10/msg00551.html (10,672 bytes)
7. Re: [TowerTalk] VNA (score: 1): Author: <john@kk9a.com>; Date: Mon, 30 Oct 2017 21:18:30 -0400; I think you should include what you're looking for in an analyzer. For checking SWR at the antenna the MFJ 259B does fine. John KK9A To: towertalk@contesting.com Subject: [TowerTalk] VNA From: Neal S; /archives//html/Towertalk/2017-10/msg00552.html (7,779 bytes)
8. Re: [TowerTalk] VNA (score: 1): Author: Richard Thorne <rthorne@rthorne.net>; Date: Mon, 30 Oct 2017 20:23:26 -0500; I agree with Tim, Stay away from the MFJ unit's. I put up some new antennas over the summer. We used an MFJ-259 and the readings didn't seem right. We then tried a Rigexpert AA-54 and the readings; /archives//html/Towertalk/2017-10/msg00553.html (10,563 bytes)
9. Re: [TowerTalk] VNA (score: 1): Author: Jim Rhodes <jimk0xu@gmail.com>; Date: Mon, 30 Oct 2017 20:40:17 -0500; You might want to check out transtenna.com and look at their MFJ upgrade for 259, etc. Jim Rhodes _______________________________________________ _______________________________________________ Tower; /archives//html/Towertalk/2017-10/msg00554.html (12,236 bytes)
10. Re: [TowerTalk] VNA (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Mon, 30 Oct 2017 19:57:40 -0700; I have a collection, acquired over time and need and economics. First a noise bridge, then a couple of Auteks. (yikes, how old am I?) Then the MFJ259, useful, but sold it since it overloaded with AM.; /archives//html/Towertalk/2017-10/msg00555.html (10,958 bytes)
11. Re: [TowerTalk] VNA (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 30 Oct 2017 20:08:54 -0700; For about four years, I've been using the VNWA 3e, designed by German EE prof DG8SAQ and built by some hams in the UK under the name SDR-Kits. It's not a kit, it's fully built and tested. I paid abou; /archives//html/Towertalk/2017-10/msg00556.html (10,418 bytes)
12. Re: [TowerTalk] VNA (score: 1): Author: Marv Shelton <marvs@att.net>; Date: Mon, 30 Oct 2017 21:02:00 -0700; Neal, I remember a VNA review in QST some time ago. I am sure you can find it. Meanwhile I feel that you need 2 devices, one for the field and one for the shack/lab. They need to cover the bands you; /archives//html/Towertalk/2017-10/msg00558.html (8,371 bytes)
13. Re: [TowerTalk] VNA (score: 1): Author: Marty s <0246811@gmail.com>; Date: Mon, 30 Oct 2017 20:55:42 -0400; I too agree with Tim Duffy here. I have used the AA-230ZOOM extensively with great results. I have found the TDR functions super helpful too. It is far more capable than the MFJ unit, are quite fairl; /archives//html/Towertalk/2017-10/msg00560.html (11,358 bytes)
14. Re: [TowerTalk] VNA (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 30 Oct 2017 22:07:46 -0700; The VNWA 3e was due to get a rave review in that series, but a US vendor threatened a patent issue, and it was killed. BTW -- the VNWA 3e is powered via USB from its host computer. Most other VNAs la; /archives//html/Towertalk/2017-10/msg00561.html (8,599 bytes)
15. Re: [TowerTalk] VNA (score: 1): Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>; Date: Tue, 31 Oct 2017 11:42:54 +0000; Hi Neal, If you would like to use the VNA "on the field", you can consider consider the KC901S+: http://www.deepace.net/kc901s/ It is a two ports VNA, high dynamic range, up to 4 GHz, and it is porta; /archives//html/Towertalk/2017-10/msg00564.html (9,888 bytes)
16. Re: [TowerTalk] VNA (score: 1): Author: jimlux <jimlux@earthlink.net>; Date: Tue, 31 Oct 2017 05:16:55 -0700; The VNWA 3e was due to get a rave review in that series, but a US vendor threatened a patent issue, and it was killed. BTW -- the VNWA 3e is powered via USB from its host computer. Most other VNAs la; /archives//html/Towertalk/2017-10/msg00565.html (10,059 bytes)
17. Re: [TowerTalk] VNA (score: 1): Author: Wes Stewart <wes_n7ws@triconet.org>; Date: Tue, 31 Oct 2017 05:24:40 -0700; I second Jim's remarks about the VNWA 3E (and Dan's, AC6LA, software). I use mine in the field with a 10" touch screen tablet computer (Motion) running, uck, Windows 10. Not quite as friendly as a; /archives//html/Towertalk/2017-10/msg00566.html (12,187 bytes)
18. Re: [TowerTalk] VNA (score: 1): Author: Máximo EA1DDO_HK1H <ea1ddo@hotmail.com>; Date: Tue, 31 Oct 2017 12:26:33 +0000; I guess; For bench work only, used with PC, VNWA is best option actually. For bench AND field use (no PC needed), KC901S+ is best and more completed. It is like a VNWA with battery and screen, up to; /archives//html/Towertalk/2017-10/msg00567.html (12,195 bytes)
19. Re: [TowerTalk] VNA (score: 1): Author: Wes Stewart <wes_n7ws@triconet.org>; Date: Tue, 31 Oct 2017 05:41:37 -0700; What a difference 35 miles make. As mentioned before I have BC stations at my QTH (https://www.qrz.com/db/N7WS) that are -3dBm. (~S9+70) Wes N7WS The MFJ isn't bothered by it. 73, Dick, W1KSZ ____; /archives//html/Towertalk/2017-10/msg00568.html (8,845 bytes)
20. Re: [TowerTalk] VNA (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Tue, 31 Oct 2017 08:01:56 -0500; I have a 259 and 269. Both have worked flawlessly for over a decade. I also have other analyzers. I like to have several readings before trying to solve an antenna problem. For the mobile and portabl; /archives//html/Towertalk/2017-10/msg00569.html (13,099 bytes)

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