Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 26 Mar 2006 03:58:29 -0500
Although there is some general agreement, there seems to be wide disagreement among the experts. One thing the NWS taught me is there is no typical thunderstorm. Roger Halstead (K8RI and ARRL 40 yea
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 26 Mar 2006 14:50:59 -0500
Here there would be two issues. Our electrical code and the inspector will insist the cable that ties into the tower and station ground tie directly to the service entrance ground rods. It may not ti
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 26 Mar 2006 19:07:29 -0500
Just a note to those who require message confirmations. I never, ever reply to requests for message confirmations. My filters take them out and file them along with "digest" messages in the "junk" fi
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Tue, 28 Mar 2006 16:34:44 -0500
Just a word of caution when it comes to drain holes. It would seem something so simple can sometimes end up being a complex problem, but as has already been mentioned, the alignment can be critical.
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Wed, 29 Mar 2006 12:20:12 -0500
<snip> In Midland County, East Central side of the Lower Peninsula of Michigan, the regulations are set by the townships. Here in Homer there are rules that all structures must abide by. Set back rul
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 30 Mar 2006 13:29:31 -0500
Although my Dish Network satellite system is on the other end of the house the control cables and feedlines for the C and Ku 11' dish run in the conduit with my feed lines, rotator cable, and remote
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Fri, 31 Mar 2006 22:51:40 -0500
Can you imagine the signal density between the two antennas if this thing really did work (it wasn't 4/1)<:-)) 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: Sat, 1 Apr 2006 01:05:51 -0500
Like most circuits I'd assume you'd need two in series to double the voltage, but as they operate in the mircowave region the antenna placement would be critical for proper phasing. Now would you us
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sat, 1 Apr 2006 18:48:46 -0500
Coffee, or tea? 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, 1 Apr 2006 19:27:37 -0500
IF you don't mind the mess, can find it and do so at a reasonable cost, BR-2 grease should be ideal. It uses Beryllium oxide in a grease suspension for high pressure, low RPM applications. It will no
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 3 Apr 2006 04:06:07 -0400
This the stuff that looks like black "zip cord"? If so I had a *lot* of it at one time. I don't know if there's any left out back or not. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - Wo
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Tue, 4 Apr 2006 17:54:49 -0400
One thing I've not see listed is 200 fluid. It's not normally listed as transformer fluid, but of the right viscosity *range* it'd make very good fluid for dummy loads. The stuff is Silicone based an
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Tue, 4 Apr 2006 23:43:19 -0400
I just came back from a Google search on Silicone 200 fluid with a lot of results including the MSDS, and suppliers. The stuff is used in everything from food, to cosmetics, to the basis for many che
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Thu, 6 Apr 2006 21:05:44 -0400
How many elements will it use on 40? Roger Halstead (K8RI and ARRL 40 year Life Member) N833R - World's oldest Debonair CD-2 www.rogerhalstead.com Hi Wayne, The only 10 - 40 M beam I'm aware of is th
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sun, 9 Apr 2006 01:54:28 -0400
I wouldn't expect element thickness to play more than a small part unless the elements are very close together and then I'd not expect much gain. How long is the boom? Roger Halstead (K8RI and ARRL
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Mon, 10 Apr 2006 22:41:54 -0400
All you need is one of the modern metal detectors. Some of them will even show the shape of what's buried. I'd think something much simpler (and cheaper) could be build using a rectangular loop that
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Tue, 11 Apr 2006 15:07:32 -0400
Along the same lines you could use one of those cheap, low voltage buzzers feed the DC through the cable to the other end and the buzzer. They make enough hash the cable should be easy to find, unles
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sat, 15 Apr 2006 13:20:43 -0400
It sounds like your rotator is down in the tower as is mine. I have installed a muffler clamp with the proper fit around the mast above the rotator I hook a "come along" farther up the tower and run
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sat, 15 Apr 2006 13:35:17 -0400
A tower is like a very large torsion bar. It has lots of give for rotation with the guy lines serving as dampers that also limit the travel. When the rotator is moved closer to the bottom of the towe
Author: "K8RI on Tower talk" <k8ri-tower@charter.net>
Date: Sat, 15 Apr 2006 16:28:23 -0400
It's not bad on a 45G (My feet don't even touch the mast), but I'd hate to be doing it on a 25G. Otherwise find a climber with small feet. Roger Halstead (K8RI and ARRL 40 year Life Member) N833R -