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References: [ +from:akozak@hourglass.com: 249 ]

Total 249 documents matching your query.

241. Re: [TowerTalk] Long Term Connector Reliability (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Sat, 23 Jul 2022 18:09:34 +0000
The only caveat with N connectors is if you are running power into a load that is not mostly resistive. If you have a non-resonant or partially resonant antenna like an 80M dipole that you are using
/archives//html/Towertalk/2022-07/msg00087.html (13,463 bytes)

242. Re: [TowerTalk] Preserving K7NV's website (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Sun, 28 Aug 2022 16:55:15 +0000
Even without access to the current site, you can use a tool like HTTrack (there are many such tools) to copy a website to a new location. As long as there are no embedded active components it is very
/archives//html/Towertalk/2022-08/msg00136.html (8,347 bytes)

243. Re: [TowerTalk] Old Top Ten Devices Relay Switch Box (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Thu, 22 Sep 2022 20:45:03 +0000
DX Engineering now owns TTD. If they are just relays, the polarity doesn't matter. Whether you common +12V and ground to select or ground the common and apply +12V to select doesn't matter. Al AB2ZY
/archives//html/Towertalk/2022-09/msg00114.html (8,845 bytes)

244. Re: [TowerTalk] Portable soldering iron (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Thu, 29 Sep 2022 15:16:29 +0000
Don't overthink it. I recently did a project that involved some soldering of connectors for process instruments around a pyrolysis plant. Using a plug in soldering iron or gun would have involved car
/archives//html/Towertalk/2022-09/msg00147.html (9,448 bytes)

245. Re: [TowerTalk] stretched EHS (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Thu, 13 Oct 2022 00:08:38 +0000
Caveat - not an expert here. Steel wire is often stretched to increase its tensile strength at the expense of elasticity. I do not know if EHS is normally prestressed. If it is, then you would probab
/archives//html/Towertalk/2022-10/msg00087.html (11,448 bytes)

246. Re: [TowerTalk] Uneven Ground (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Thu, 13 Oct 2022 18:14:09 +0000
Why do you think they should be any different? The angles should be the same regardless of the length, no? Otherwise the preload would need to be different on each guy to exert a consistent downward
/archives//html/Towertalk/2022-10/msg00093.html (7,683 bytes)

247. Re: [TowerTalk] Uneven Ground (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Thu, 13 Oct 2022 20:12:30 +0000
Oh, I see what you are saying. It didn't sink in before. I was thinking that the anchor sould be placed along an imaginary line running from the top guy to your anchor point at grade. So an anchor up
/archives//html/Towertalk/2022-10/msg00098.html (9,704 bytes)

248. Re: [TowerTalk] Peak Voltage at the Tip of Antennas (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Thu, 20 Oct 2022 19:14:51 +0000
Aren't they in the MF/HF range? Isn't LF below 500kHz? Al AB2ZY Not blaming Ed, but is this for real?  I wonder what all the 75 and 160M phone guys think of this? 73, Pete N4ZR Check out the new Reve
/archives//html/Towertalk/2022-10/msg00145.html (8,819 bytes)

249. Re: [TowerTalk] More Radials = Higher SWR??? (score: 1)
Author: Al Kozakiewicz <akozak@hourglass.com>
Date: Sun, 5 Feb 2023 23:58:32 +0000
A 1/4 wave vertical over perfect ground will have an impedance of 36 ohms. That would be a roughly 1.3:1 SWR with 50 ohm feedline. Without radials, you will have a complex impedance of real and imagi
/archives//html/Towertalk/2023-02/msg00013.html (15,454 bytes)


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