Gary: The folks on this reflector have frequently recommended using Scotchbrite pads. These pads are green plastic scouring pads and can be found at most home supply stores such as Lowe's and Home De
Phil: How about this: http://www.qsl.net/n1lo/tower.htm ? 73 de Gene Smar AD3F _______________________________________________ _______________________________________________ TowerTalk mailing list T
Tom: I would urge you to run the wire OUTSIDE your home in the dirt with ground rods as needed along the way and connect to the electric service panel that way. I would not run the interconnecting th
Ted: Your method of calculation would give you the outer bound for the area of the mast. That is, it's the worst case number, as if your mast were actually a flat plate 2 inches wide and ten feet lon
TT: Speaking of lightning, this appeared on the ARRL's web pages today: http://www.arrl.org/news/features/2006/03/24/1/?nc=1 . FYI. 73 de Gene Smar AD3F ______________________________________________
TT: I found these articles to be of value in understanding how arresters from Polyphaser, ICE and Delta operate: http://www.iceradioproducts.com/33.htm http://www.iceradioproducts.com/33a.htm . Both
Gents: I ran across this today and immediately thought this would be a good technology to power tools, rotators and other accessories at the base of remote towers: http://www.thinkgeek.com/stuff/41/w
Dave: From the TT archives: http://lists.contesting.com/archives//html/Towertalk/2006-01/msg00537.html . 73 de Gene Smar AD3F _______________________________________________ _________________________
Jason: I think the other items you have for sale might be an interesting alternative to the T-shirts and the beer-can-toting hardhats for the next hamfest..... 73 de Gene Smar AD3F __________________
Olivier: I would also suggest you search on NVIS or Near Vertical Incidence Skywave and Vietnam. As Jim writes (below) much of the propagation research through forests was done in the 60s and 70s in
Bob: AB Chance galvanized guy anchors are the way to go: http://www.abchance.com/ho_home.html# . Probably available from local farm supplier, too. 73 de Gene Smar AD3F _______________________________
Bob: I used Cadweld's One-Shots for my ground system. These are single-use ceramic molds and powder shots, rather than the heavy-duty clamp and mold system of large commercial jobs. I got my one-shot
TT: Additional comments embedded below. 73 de Gene Smar AD3F Available from RFC for less than $8. To protect the tops of my ground rods from mushrooming, I constructed my own drive sleeve out of four
Dave: I can't anwer your questions regarding wind loading, etc. But I can offer a suggestion. I had one of these PU masts to my ATV Yagi and 2M vertical a few years ago and didn't like the thin cotte
Roger: I used a self-centering industrial bearing at the top of my tower, similar to: http://www.applied.com/catalog/ma/catalog.do?e=10&s=2000776&r=0 . I lube it once each year with marine grease. It
Julio: The ID of my mast bearing is in fact the next size up from 2 inches. I had originally purchased a 2 inch bearing but that was too small, so I returned it and asked for the next larger size. I
David: I recommend you use a two-hole crimp lug and stainless steel nuts, bolts and split lockwashers at the ground window end of a #2 solid copper wire. Try Harger ( http://www.harger.com/grounding.
Lee: I have a couple of suggestions for you to try. I'm assuming you are using an antenna analyzer to check SWR. If you are using your rig's SWR meter, that will change some fof the tests I suggest,
Ken: Back in 2001 I bought my CM mast from: Special Metals, Inc. At that time Joe was very helpful and willing to work with me on shipping. You might also try: Dillsburg Aeroplane Works Dillsburg, PA
JC: I constructed the tower exactly the way you're describing - piece by piece, bolt by bolt. The most critical part was getting the lower section perfectly straight and plumb. I used a level surface