Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 30 Jan 2006 11:39:09 -0500
Delrin is very easy to machine and mechanically stable unlike Teflon, but I don't know about its resistance to UV. "I think" it's pretty good. I used to make bearings out of the stuff. It's much bett
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 30 Jan 2006 11:41:04 -0500
We can always hope<:-)) Might be a good time for some HF digital work. I understand there are a lot of RTTY and Packtor operators down there. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 30 Jan 2006 16:00:11 -0500
I can't find it now, but it seems like I read some where in "the book" while installing my tower, not to weld the rebar for the tower foundation. Maybe it's just a faulty memory. Roger Halstead (K8RI
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Tue, 31 Jan 2006 20:14:37 -0500
This was my thought. The industry is growing so fast that they are hiring minimially (*trained*?) climbers and the safety record is not really representative of tower climbing in general. Given, it'
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Fri, 3 Feb 2006 14:22:00 -0500
All mail, or just responses to your posts? I only receive two replies when it's in response to one of my posts. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 9 Feb 2006 01:15:10 -0500
I'd cheat, call "Miss Dig" and tell them I was going to do some digging and didn't want to hit anything important. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair C
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Wed, 25 Jan 2006 23:30:46 -0500
How many of each in a tube? Are you sure the ones in the packs at Lowes were graded? The only Grade 5 and 8 I've found there were in the drawers. All of the local packs of two I looked at were witho
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Wed, 25 Jan 2006 23:35:35 -0500
Note on ROHN hinge baseplate in catalog. "Use only with guyed towers." Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhalstead.com __________________
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sat, 11 Feb 2006 16:49:21 -0500
In my system, http://www.rogerhalstead.com/ham_files/Tower29.htm "As I recall" none of the elements of the 144 and 440 antennas are grounded. (top array at 130 feet) I believe all elements are groun
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 12 Feb 2006 14:00:12 -0500
I worked on some high powered RF equipment that used spark gaps for over voltage protection. They contained enough radioactive material to require a license. The radioactive material provided a mean
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 13 Feb 2006 23:52:29 -0500
45-G is 1' 4 3/4" between centers for the legs while 55-G is listed as 1' 5" so they should not match up directly. 45-G legs are constructed of 14 Ga tubing while 55-G is 11 ga. Both should be 1 1/2
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 16 Feb 2006 15:19:23 -0500
Time to get a good engineer and have them look at it. Much depends on the kind of rock and the integrity of the rock. If it's granit with no cracks that's great, but shale can be fragile. Roger Hals
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 19 Feb 2006 01:21:33 -0500
I treat it just like installing a pl-259, but add a 1/2 compression coupling. Clamp the coax in one end and the pl259 in the other. Leave enough center conductor sticking out to allow soldering to t
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 19 Feb 2006 03:03:04 -0500
Unfortunately I don't have a photo of the half inch coupling, although if need be I could make up a connector and shoot some photos (if I can find some half inch stuff. The compression coupling is "d
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 19 Feb 2006 03:04:17 -0500
I love Generators! I've been reading a lot about the ice storm in the east, but they haven't said much about what it did here in Michigan. In just the single state we had over 100,000 without power.
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 19 Feb 2006 13:29:24 -0500
Part of it is. The threaded portion is the standard barrell connector (double female) with the threads cleaned off one end and then soldered into the back side of the 3/4" connector. I don't remembe
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 19 Feb 2006 14:48:52 -0500
Some places have stopped carrying the 500 as they have found little demand for it. That's not to say it isn't worth the money, but most either elect for the 400 or 600. Connectors for the 600 are a
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 20 Feb 2006 12:33:36 -0500
You didn't say how high a tower and you did not say why hardline is not an option, but you did say good, low loss feedline which requires making a number of assumptions. As you said, good and low lo
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 23 Feb 2006 19:15:46 -0500
It seems like I saw something to that effect on the Times Wire pages, but ... it was a while back. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhal
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 23 Feb 2006 21:33:45 -0500
I don't know what heat shrink tubing you've been using, but I use good quality commercial grade, flooded, that is widely used in industry and it works very well and has for some years. It does not le