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Total 509 documents matching your query.

261. Re: [TowerTalk] four square box (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Thu, 30 Aug 2012 10:29:14 -0500
Hi Jeff: As you can see from the on line manuals and photos - they are physically close. The housings are just a little different. I only used the DXE box for a test. I have used the Comtek box for o
/archives//html/Towertalk/2012-08/msg00353.html (10,856 bytes)

262. Re: [TowerTalk] Brown colored galvanized surface? (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Wed, 12 Sep 2012 15:52:02 -0500
Hi Steve: It is possibly COR-TEN steel. Weathering steel, best-known under the trademark COR-TEN steel and sometimes written without the hyphen as "Corten steel", is a group of steel alloys which wer
/archives//html/Towertalk/2012-09/msg00215.html (8,967 bytes)

263. Re: [TowerTalk] need contractor for tower foundation work in eastern WV (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Mon, 17 Sep 2012 21:05:45 -0500
Hello Mat: I suggest you contact Tim, W3YQ in Elkins, WV. Tim is Comtrain certified and fully insured. He is also very experienced. http://w3yq78.wix.com/kl7wv 73, Tim K3LR --Original Message-- From:
/archives//html/Towertalk/2012-09/msg00343.html (8,806 bytes)

264. Re: [TowerTalk] Experience with phased verticals on 40m? (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Sat, 29 Sep 2012 22:41:51 -0500
Hello John: The Comtek/DX Engineering (four ground mounted quarter wavelength elements in a four square configuration) is significantly better compared to a high dipole for DX communications It is al
/archives//html/Towertalk/2012-09/msg00451.html (8,580 bytes)

265. Re: [TowerTalk] Green Heron RT-21/21D Rotor Controllers (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Mon, 8 Oct 2012 23:43:02 -0500
Hello Mark: I have twenty three (23) of the Green Heron RT-21 controllers. I have used them for 6 years. They are accurate and bullet proof. You can see many Green Heron controllers being used in the
/archives//html/Towertalk/2012-10/msg00091.html (9,433 bytes)

266. Re: [TowerTalk] RFI Issues for W7PSK (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Tue, 13 Nov 2012 16:43:30 -0600
Lots of good RFI experience is on the RFI reflector. You may want to look at the archives: http://lists.contesting.com/pipermail/rfi/ You can also sign up here: http://lists.contesting.com/mailman/li
/archives//html/Towertalk/2012-11/msg00115.html (12,404 bytes)

267. Re: [TowerTalk] 40 m 2 el Yagi bandwidth very narrow (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Fri, 16 Nov 2012 12:50:32 -0600
Hello Kari: This narrow VSWR is a limitation of the design of the antenna you are using. A possible solution to your problem, is the W6NL Moxon two element 40 meter Yagi design. You can view some VSW
/archives//html/Towertalk/2012-11/msg00158.html (9,562 bytes)

268. Re: [TowerTalk] DX Engineering coax prep tool (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Fri, 11 Jan 2013 15:43:00 -0600
Hi Kelly, I have one of these I use all the time. I have never had this problem. Something is not right - I suggest you call DX Engineering's help desk. I am sure they will figure it out. 73, Tim K3L
/archives//html/Towertalk/2013-01/msg00129.html (8,524 bytes)

269. Re: [TowerTalk] Yaesu Rotor Connectors (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Fri, 11 Jan 2013 15:47:09 -0600
HI Mike, I bought one from Texas Towers last June for Field Day. 800-272-3467 73, Tim K3LR I am looking for the connectors (both ends) for a Yaesu 450 rotor. There was an advertisement from someone o
/archives//html/Towertalk/2013-01/msg00131.html (8,051 bytes)

270. Re: [TowerTalk] Rebar base for new 18HT installation? (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Mon, 21 Jan 2013 12:35:44 -0600
Hello Allen: I have eight HyTower verticals installed. I used rebar in each one of them. I have not had any problems in almost 20 years. I suggest that you consult with a local civil engineer. Get hi
/archives//html/Towertalk/2013-01/msg00222.html (8,377 bytes)

271. Re: [TowerTalk] 15m monster finally up - EME and Video (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 5 Feb 2013 15:49:49 -0600
Hello Tonno! Congrats on a very FB installation! Your EME video is outstanding! If the moon times line up with you, there is enough gain with the 15 meter 28 element array at K3LR to do EME. I'd love
/archives//html/Towertalk/2013-02/msg00093.html (9,664 bytes)

272. Re: [TowerTalk] possible 15M EME ES5TV to K3LR QSO on April 27. (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Wed, 6 Feb 2013 09:58:33 -0600
Hello Tonno, If April 27th works out - I can be very ready to try this. That is a good open day for me. Maybe Gerald, K5GW can double check path loss calculations for EME on 21 MHz at that day/time f
/archives//html/Towertalk/2013-02/msg00108.html (13,067 bytes)

273. Re: [TowerTalk] Source for Polyrod (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 19 Feb 2013 20:53:34 -0600
Very well! Polygon rod can be purchased (in quantity) with a UV stabilized option - so weather is not a problem. Large stations like K3LR, W3LPL and others have been using Polygon rod guying material
/archives//html/Towertalk/2013-02/msg00286.html (11,271 bytes)

274. Re: [TowerTalk] Noise / Interference Group? (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 5 Mar 2013 23:12:41 -0600
Hello Mike: Lots of help from great guys on the RFI reflector Check out rfi@contesting.com You can see the archives here: http://lists.contesting.com/pipermail/rfi/ Sign up info is on the bottom of e
/archives//html/Towertalk/2013-03/msg00056.html (9,154 bytes)

275. Re: [TowerTalk] 2.4 GHz/HF interference concerns (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Thu, 7 Mar 2013 14:29:32 -0600
Hello Chuck: I would not expect problems with your proposed installation, however there is no guarantee, as every situation is unique. Proper installation and shield bonding is critical to success (a
/archives//html/Towertalk/2013-03/msg00085.html (9,113 bytes)

276. Re: [TowerTalk] Cable Internet modem shutting down when transmitting on40 m (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Sat, 16 Mar 2013 13:19:57 -0500
Hello Robert: You might try the RFI Reflector for help with your RFI cable modem problem. There are lots of RFI experts that are active on RFI Info about the RFI Reflector and how to sign up is here:
/archives//html/Towertalk/2013-03/msg00205.html (8,678 bytes)

277. [TowerTalk] 2013 Antenna forum at Dayton (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Mon, 18 Mar 2013 13:15:10 -0500
The presentation topics for the 2013 Dayton Antenna forum (Friday at 2:30 PM) are listed along with other Dayton forum details. http://hamvention.org/files/2013_Forum_Details.pdf Archive copies of pr
/archives//html/Towertalk/2013-03/msg00239.html (7,244 bytes)

278. Re: [TowerTalk] misaligned vertical towers (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Thu, 21 Mar 2013 15:19:25 -0500
Hello Steve, I suggest you ask around your local radio club. Someone must have access to a surveyor transit and that knows how to set on up and use it. They should be able to visit your QTH and make
/archives//html/Towertalk/2013-03/msg00306.html (8,829 bytes)

279. Re: [TowerTalk] Cycle-24 TX-38 Triband Yagi (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Tue, 26 Mar 2013 16:44:08 -0500
Hello Gary: We used a TX-38 at Field Day last June from K5EOK. It went together very fast. The documentation is wonderful. The measured VSWR was very close to the charts on the Cycle 24 web site. The
/archives//html/Towertalk/2013-03/msg00367.html (7,910 bytes)

280. Re: [TowerTalk] 21 EME trial tonight (score: 1)
Author: "Tim Duffy" <k3lr@k3lr.com>
Date: Wed, 27 Mar 2013 12:04:40 -0500
Hello Tonno: Thanks for continuing to try 21 EME. Although no where near moon position optimum from Western PA this evening, I will aim the 28 element array from here toward the moon as best as possi
/archives//html/Towertalk/2013-03/msg00398.html (10,405 bytes)


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