One of the biggest reasons a chain and sprocket will wear out is over tensioning. Examine the sprocket closely and if you see even the slightest "hooking" of the teeth, you should replace it as well.
I use 3M's "Scotchbrite" pads. Less abrasive than sandpaper and easier on the hands than steel wool. I used a Tri-sodium phosphate (TSP) substitute to "wet" the pad. 73 de Perry - K4PWO _____________
Another idea is to look at a good hunting supply house. I have seen "tree climbers" which are a series of steps and bands/chain that allow you to climb trees for deer stands. The bands have teeth tha
WB0W sells an Aluminum thrust bearing that is a "clone" of a Rohn TB2. The race area appears to be much "beefier" and the mounting flange also is thicker. Does anyone use this bearing? How does it st
Check http://www.hyperlinktech.com/productfamily.aspx?id=249... They are $189.99 for a 500' roll of their LMR-400 clone. Or http://www.shireeninc.com/osc/index.php?cPath=25_48... Theirs is $184.95 fo
The original poster was talking about tying into the ground bus at his house panel. I believe that is a BAD idea. You don't want to create the possibility of dumping lighting current from an antenna/
I should clarify that a perimeter ground system IS tied to the electrical panel ground at the panels ground rod, not in the panel. Most ground bus strips in panels are not well suited for the large c
Try http://www.defusco.com/Drill-Bits-Rotohammer-Chisels-&-Ground-Rod-Ground-Rod-Drivers/c65_70_279/index.html?osCsid=8q972bvs7jtintgv4btgec59q7 or http://tinyurl.com/6bzgv3 if the link gets mangled.
I always tin the braid and then use a tubing cutter to trim it nice and neat. Makes soldering the braid to the shell easy. I do clean the goop first as I've never tried tinning through the goop. 73 d
Another cheap option is to use cold water pipe "tape" heaters. They are current limited so there temp varies some with outside air temp but is usually close to 70 degrees under insulation. 73 de Perr
Easy way to gage the relative suitability of a plastic for RF is the microwave test. Place a microwave safe container with one cup of water in the microwave and place your test item in the microwave.
Here is a source for a compressed air "tennis ball" shooter. They also sell a cheaper combustion model but the air model is safer and doesn't produce heat. The local high school bought a "T-shirt sho
I replied with the link to another poster but forgot that this reflector only replies to the sender and not to the group! Oops... here's the link... http://www.cajuncannons.com/store.php?crn=219&rn=3
Sear's Craftsman tools has them. They are all steel however, and not cheap! 73 de Perry - K4PWO _______________________________________________ _______________________________________________ TowerTa
JB Weld is RF "safe" (as they state on their Web site) and I have tested it (the old glass of water with a sample of JB Weld in the microwave test) and used it in RF environments. 73 de Perry - K4PWO
Only if its a 1/4 wave, or odd multiple, long... Otherwise, it'll just give you a 1.5:1 VSWR "IF" your antenna is a true 50 ohm match. Since it has lower loss than 50 ohm coax, its usually a wash on
You will see the type failure Larry outlines if... 1. the two mounts are too close vertically and 2. there is too much mast above the upper mount. Most of the wall mounts are intended to be used with
http://www.l-com.com/productfamily.aspx?id=6213 "N" male - $6.04 each in 10 unit quantity for LMR-600 series cable. 73 de Perry - K4PWO _______________________________________________ _______________
Here's my totals for my "on going" install to date... Excavation (backhoe operator) 6' x 6' x 5' (hit bed rock) = $150 Form material (elevated form to get 6' concrete depth) = $100 7 yards of concret