Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Mon, 27 Nov 2006 20:47:12 -0500
Jim already covered where to find these. In my case I had some flat plate laying around. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhalstead.com
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 29 Nov 2006 14:20:14 -0500
As others have already noted penetrating oil and heat, but I'd add a caution about heat. As for penetrating oils, PB-Blaster is one of the best along with MouseMilk (really). You'll probably be more
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Wed, 29 Nov 2006 17:23:10 -0500
"I think" it'll work well with Aluminum too, but I make no gurantees and I'm not running out to the shop to read the lable as it's pouring rain as in visibility no more than a couple hundred yards.
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 30 Nov 2006 01:35:20 -0500
I have several of them from the little "Mouse" (TM) to the larger ones. At least two of them have rubber pads and I have used "shakers" in industry to move things in "tight places". This might make
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Thu, 30 Nov 2006 19:41:46 -0500
I started out to address this through Dennis's answer, but then though I'd start with the original. Not normally. Under *some* conditions you can use relatively stiff cables like LMR400 and even 600
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 1 Dec 2006 04:00:22 -0500
I think some one put up a link with photos but here's what I do: Sorry about the extra spacing but I just switched to open office and this is what I get when I paste it into OE. Installing N-Type cri
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 1 Dec 2006 15:12:42 -0500
Good old precipitation static. I think it's sorta like a giant Vandergraph generator and there is no convective activity within a distance to induce anything more than QRN. Tops are only 5 to 10,000
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 1 Dec 2006 18:25:01 -0500
<snip> Precip static should not be capable of damaging coax. It should flash over at the connector(s) well before it is capable of damaging the coax itself. Of course there is some cheap coax floatin
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 1 Dec 2006 19:19:56 -0500
The talk about breakdown voltage which is basically air across the space between the inner and outer conductors at the PL-259. Given LMR-400 has roughly 34 pfd per foot (23.9) or 230 pfd per hundred
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 2 Dec 2006 00:46:06 -0500
Not at all. It's called short hand math. My professors had the same problem understanding it in college as you are seeing I drop the zero and you, or the reader is supposed to automatically put it b
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 2 Dec 2006 22:02:50 -0500
You mean it's supposed to be straight AND true? I've always taken the "That looks arbout right" approach. OK, maybe not as the sole means of determining it's straight and true, but I don't go much be
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 3 Dec 2006 02:54:31 -0500
<snip> Reallllyyyy go...don't they? When cutting the end off you really only have the short piece to worry about unless they are both short. In the cut-off, or chop saw the cable is clamped in place.
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 3 Dec 2006 21:57:05 -0500
And not all of them. I purchased some wide black ties that were supposed to be UV resistant. In less than two years they were so brittle you could break any of them with just a light pull. The only
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Tue, 5 Dec 2006 02:32:43 -0500
For those who use the TB-3 and 4 to support much weight, I'll try to get some photos up in a day or two. I had to use BP-Blaster to get the bolts out of a TB-3 that hadn't been doing much of anything
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Fri, 8 Dec 2006 22:26:57 -0500
If you want it to look nice and it will probably stand up well to the elements, although probably not a practical approach you could alodine the outside shell. Other than looking nice at first I don'
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 9 Dec 2006 03:40:51 -0500
Unless they've changed the way they rate them, those are way too low a voltage . Line voltage is 120 * 1.414 or basically 170V PP. The MOVs should be at least a little above this voltage. With DC I
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sat, 9 Dec 2006 21:32:21 -0500
I don't know if you can still find the *big* MOVs, but they must still be available. They have an Aluminum bottom plate that can be bolted right to the ground buss. Bolt 'em in and tie one to each si
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Sun, 10 Dec 2006 15:05:06 -0500
Dozens? For a while we were keeping three cats happy with the ... ah...daily fall out. One cat is big at 17# and not fat. I've seen him take birds off the feeder at 7 feet above ground. He got smart
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Mon, 11 Dec 2006 04:07:56 -0500
We are on a migratory flight path (Midland MI). During a similar time, but in daylight it's quite common to receive traffic advisories from ATC of primary echos on some heading, altitude unknown. Th
Author: "K8RI on TowerTalk" <K8RI-on-TowerTalk@tm.net>
Date: Tue, 12 Dec 2006 18:58:28 -0500
That'd be interesting. I keep seeing references to 200 foot cell towers. There are a lot of towers around there with two self supporting 400 footer cell towers a little over a mile to the east of me