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Total 303 documents matching your query.

261. Re: [TowerTalk] radials 160 (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 7 Mar 2017 10:39:45 -0500
I stand corrected - I just found an EZ Trench Cable Installer that is available - at Home Depot! Only one store has it - but hey - that is great. Gary http://www6.homedepot.com/tool-truck-rental/Cabl
/archives//html/Towertalk/2017-03/msg00051.html (11,648 bytes)

262. Re: [TowerTalk] W2AU Baluns?? (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Wed, 15 Mar 2017 12:06:46 -0400
the ones I had were junk. Two of the 5 fell apart on their own (bad internal soldering) ... one was used in a phased array and even though the markings were followed for getting the right phasing it
/archives//html/Towertalk/2017-03/msg00178.html (7,873 bytes)

263. Re: [TowerTalk] checking balun phasing (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Thu, 16 Mar 2017 07:57:35 -0400
The first and foremost was was to know that when I used the center C31XR of a 3-stack the signals would always go down noticeably. I don't climb - the guy that was doing my tower work at the time was
/archives//html/Towertalk/2017-03/msg00186.html (9,054 bytes)

264. Re: [TowerTalk] Yagi Mechanical (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Thu, 30 Mar 2017 16:01:57 -0400
I've used it. My biggest complaint is it is awkward on how you build elements ... and the boom part is really lacking. For example the program should readily know where the COG is for the finished an
/archives//html/Towertalk/2017-03/msg00453.html (12,051 bytes)

265. Re: [TowerTalk] 80 Meter beam (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Fri, 31 Mar 2017 17:26:46 -0400
"It is a bit unnerving to be at 190ft and hear a prop pitch motor screaming as the antenna suddenly moves about 90 degrees!" a day in the park Gerald ... Gary K9RX [says a guy that can't make it past
/archives//html/Towertalk/2017-03/msg00481.html (12,821 bytes)

266. Re: [TowerTalk] Help with Info on old Kirk Antenna Components (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 4 Apr 2017 12:31:01 -0400
Wow! That brings back memories - I bought a used 6 element 20 meter Kirk yagi back in the 80's ... all fiberglass including the boom. Never assembled it. Used the elements for verticals etc. Gary K9R
/archives//html/Towertalk/2017-04/msg00025.html (9,368 bytes)

267. Re: [TowerTalk] Interaction potential Hex and 40 m dipole (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 2 May 2017 08:28:03 -0400
Indeed "unaffected SWR" absolutely does not mean the pattern isn't affected!! I tested an M2 4 el 40 (their 40M4LLDD) at 37' with a 6 element 15 at 12' (1/4 wave so high enough) ... with the booms at
/archives//html/Towertalk/2017-05/msg00011.html (11,751 bytes)

268. Re: [TowerTalk] Wind Speed by Location (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 15 May 2017 12:43:06 -0400
I entered three different locations where I've lived: AZ, TX and SC .... they all returned the exact same information... Gary K9RX Didn't see this in the archives, maybe of interest to the TowerTalki
/archives//html/Towertalk/2017-05/msg00136.html (7,607 bytes)

269. Re: [TowerTalk] Wind Speed by Location (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Tue, 16 May 2017 07:08:54 -0400
this brings up what to me is an interesting question .... if I'm not mistaken the standard 'wind speed' is as measured at I believe 30' (33'?) off the ground ... I have a weather station of sorts mou
/archives//html/Towertalk/2017-05/msg00140.html (11,702 bytes)

270. Re: [TowerTalk] Hygain LP-1010 (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Wed, 14 Jun 2017 07:42:11 -0400
Maybe its a myth but I've always understood LP's to be equally poor everywhere. Not great FB - nor gain. I'd guess this one would perform as a dipole on 30. This of course sets aside the new log-yagi
/archives//html/Towertalk/2017-06/msg00110.html (7,548 bytes)

271. Re: [TowerTalk] Bearings for Axial Load (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sun, 16 Jul 2017 12:18:07 -0400
Correct - The RTS is actually a well designed system. One CAN replace the main bearing as well as the other bearings - something that can not be done on a XG tower without lifting the WHOLE tower - w
/archives//html/Towertalk/2017-07/msg00181.html (11,762 bytes)

272. Re: [TowerTalk] 80 M 4 SQUARE MODELING (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Thu, 20 Jul 2017 13:06:04 -0400
I modeled a 160 meter vertical, 100' tall (it was modeled with wires coming off the top for 160 match) and a 4 sq for 80 around it. It showed severe coupling in to the 160 tower from the 80 antenna.
/archives//html/Towertalk/2017-07/msg00192.html (11,164 bytes)

273. Re: [TowerTalk] 80 M 4 SQUARE MODELING (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Fri, 21 Jul 2017 19:08:17 -0400
Agreed - to an extent.... I don't think the programs are THAT sensitive ... at least that hasn't been my experience re interaction modeling. I did lots of it for the tower with the antennas to see th
/archives//html/Towertalk/2017-07/msg00199.html (10,508 bytes)

274. Re: [TowerTalk] 80 M 4 SQUARE MODELING (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 22 Jul 2017 08:43:28 -0400
you've got it - if that is indeed your only option - go for it! [but think about how you'd do the trick of breaking up the tower... in case the results are off measurably...John's book is handy for t
/archives//html/Towertalk/2017-07/msg00205.html (12,223 bytes)

275. Re: [TowerTalk] 80 M 4 SQUARE MODELING (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sat, 22 Jul 2017 13:39:14 -0400
Excellent point! Indeed they assume there's proper current distribution - and John's book seems to imply if not outright state there will NOT be proper current distribution under the best of circumst
/archives//html/Towertalk/2017-07/msg00230.html (9,645 bytes)

276. Re: [TowerTalk] Takeoff angle (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Sun, 23 Jul 2017 19:33:09 -0400
If you are using the HFTA from the ARRL AB then you have all that info there already! Its the Elevation File. They have one for every state for EU, AFR, AS etc etc ... for the most part the lower the
/archives//html/Towertalk/2017-07/msg00277.html (10,003 bytes)

277. Re: [TowerTalk] Takeoff angle (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 24 Jul 2017 08:37:28 -0400
Bob, SERIOUSLY! I AM saying I am hearing this. This is not just the result of modeling, which shows indeed that the highest angle will be favored (less often of course)... this is a result of day to
/archives//html/Towertalk/2017-07/msg00288.html (15,691 bytes)

278. Re: [TowerTalk] Takeoff angle (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 24 Jul 2017 08:58:23 -0400
AH! There it is - sorry ... no that was my post, Gary .... sorry for the confusion ... no what I was saying is that the top antenna ALONE is never (almost) better than BIP (or all in phase). The diff
/archives//html/Towertalk/2017-07/msg00290.html (12,070 bytes)

279. Re: [TowerTalk] Takeoff angle (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 24 Jul 2017 09:06:25 -0400
I'd agree if giving a presentation to potential neophytes, which I did to a local club on the use of HFTA, one should be careful to point that there ARE signals, lower in level, below (and above) the
/archives//html/Towertalk/2017-07/msg00291.html (11,512 bytes)

280. Re: [TowerTalk] Takeoff angle (score: 1)
Author: "StellarCAT" <rxdesign@ssvecnet.com>
Date: Mon, 24 Jul 2017 10:14:24 -0400
ah - sorry indeed BOP recommendation would be for 20 and above. From what I understand stacking of 40's ... unless REALLY high and separated, doesnt provide much other than the ability to change dire
/archives//html/Towertalk/2017-07/msg00294.html (11,794 bytes)

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