These bearings have been used by most of the major tower manufacturers over the last 40 years or longer. They are the bearings that are pressed into the aluminum cable pulley that guides the lifting
At night you can look for the Polaris star, also known as the North star. It will be above the horizon at the same degree of latitude as your QTH. It is quite bright so it should be easy enough to fi
Same here. I have a 70ft telescoping tower and a 90ft Sky Needle tublar tower, both with remote raising and lowering control boxes. I am always at the base of either tower when I raise or lower them.
I have recently had two PL 259s and mating SO234s develop black crud at their contact point. Rx was fine but on Tx a very high SWL resulted at the rig. In both cases I totally cleaned the male PL259
Where are they located? Ray, N6VR/W7YA _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.con
Bruce, I converted my older Skyneedle tower from 120 to 240 vac because there would have been too large a voltage drop with 120 vac for the run I have. It was not an easy job, and of the drawings I f
A good ham friend of mine in Southern California has been a broadcast engineer for most of his life. He has worked at several stations over the years, and by the FCC, he has to measure the field stre
Gary, I'd like a copy of the link. Tnx, Ray, N6VR/W7YA _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com
I've had a MA770 tubular tower in the air for the last 15 years. I got it second hand 20 years ago. It's probably 40 years old. I need to replace the raising motor starting cap.I have the old cap in
Thanks all for your inputs. I did order the caps mentioned. Dave, I remember as young ham, abt 17 - 18 yo, charging 2 -3 kv DC electrolytic caps then short them out with a screwdriver. It was fun to
For my MA770 install, it called for a 3X3X7ft hole. Well, I rented a Bobcat with a 12" auger and bored about 4 holes. I then went into the hole and used an electric jack hammer and made it deeper and