Author: "R. David Eagle via TowerTalk" <towertalk@contesting.com>
Date: Wed, 25 Aug 2021 02:47:19 +0000 (UTC)
Im looking to add some surge protection on my rotor control wires and was wondering if anyone has any input as to which ones work the best? Source and part numbers would be appreciated! Thanks, DaveK
I have been using these for years: https://www.arraysolutions.com/surge-and-rf-protection/as-12sp John KK9A Im looking to add some surge protection on my rotor control wires and was wondering if anyo
Author: Gene Smar via TowerTalk <towertalk@contesting.com>
Date: Wed, 25 Aug 2021 15:26:47 +0000 (UTC)
Polyphaser makes control line surge arresters, too. 73 de Gene Smar AD3F John KK9A Im looking to add some surge protection on my rotor control wires and was wondering if anyone has any input as to w
Ive bought the ones Chris / KF7P mentioned for Rotor control lines and also for the relay lines to antenna switches and stack matches. I think I have 4 of them. I havent had a direct hit but I havent
Author: "Kenneth R Goodwin" <krgoodwin@comcast.net>
Date: Wed, 25 Aug 2021 17:17:02 -0500
You have two options in rotator control line solutions. My source on this topic is Jeff at Green Heron Engineering. MOV's protection is normally at 60 - 80V and a spike of that magnitude will undoubt
As Ken points out, MOVs degrade a bit every time they absorb a surge. This can lead to either no protection or a dead short. A nearby ham had a major fire created by a shorted MOV inside a plastic ou
Author: "R. David Eagle via TowerTalk" <towertalk@contesting.com>
Date: Thu, 26 Aug 2021 01:55:10 +0000 (UTC)
Grant et al, I really appreciate all the feedback that everyone has provided. I recently put up my glen Martin tower and have been boosting my grounding and protection around the shack. I have nume
Dave, I have had to replace several of the MOV's in Green Heron rotator controllers. I called Green Heron in the past and ordered several extra to have on hand. One is labeled as 1.5KE82CA. Here is a
Hi Ray, Looking a the links that you kindly provided. One TVS is a 70.1V device and the other is rated at 17.1V I imagine that the higher voltage one is used to protect the motor lines and the lower
John, What values would you recommend for the MOV and capacitor? 73, Gordon Beattie, W2TTT 201.314.6964 Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: TowerTalk
They appear to be V10H40P (Littelfuse P/N) MOVs or equivalent, which cost about $0.35/ea. Capacitor value unknown, but I'd use .01uF/1kV like the Vishay 75-562R5HKMS10RR or similar, which are about $
10000 pF / 1KV capacitor 82V Varistor 6.5KA Cost ~$1.00 for the capacitor and varistor from Digikey or Mouser. Andy / NC4AB John, ground. The Array Solutions boxes are really nice and convenient, bu
Steve, Sounds about right. I will make up some and see how they perform. As long as they don't mess up the primary function of the lead, this is a winner. Hope that you are well! 73, Gordon Beattie,
Andy, Thanks! Between you and Steve, we're on the right path. Thank you! 73, Gordon Beattie, W2TTT 201.314.6964 Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: T