Ocean liners have sacrificial anodes on the hull. Especially in the area where the brass propellers are. Mark N1UK and the rust protects it from deeper corrosion (think: ocean liner)...galvanized anc
Yes I should have driven a galvanised steel pipe into the ground instead. Mark N1UK To connect an anchor to a copper ground rod is an absolute no-no. That will "eat" the anchor in no time. Old wisdom
Is this what happens when free climbing? http://www.wral.com/man-dies-after-fall-from-cell-tower-near-coats/12768142/ I am strapped on with a loop and a fall arrestor while climbing up, working and w
Yes I believe that they can be used to secure the guys. I chose not to do this since it is already cluttered up there and having the guys attached to the top plate makes working on the antennas more
Yes, I installed my guys about 5 feet down from the top of my Rohn 45 tower and the rotator is about 8 feet down from the top of the tower. It seems to work out pretty well. I took the advice of othe
I don't want to up there with a tram line dropping guys from the tower. Mark N1UK It's not a problem at all if you just drop two of the top guys when installing the antenna. John KK9A I agree. Having
I thought Rohn 25 should be guyed every 20 feet. If you are not using a wall bracket then I would install 3 sets of guys. Mark N1UK I am a newbie. I am putting up a 60' Rohn 25G with 2 sets of guys.
I guess it depends on what windload you want the tower to withstand. If it was my tower I would use more than 2 guy wires. Best to consult the Rohn 25 drawings. According to Rohn my tower can take 12
Yes they do...looks like I had wrong info. However I imagine that you would need to install temporary guys during erection. I wouldn't fancy being on a 30 foot length of unguyed Rohn 25 tower. 30 foo
I take it that you are going to run out a few radials. A choke balun at the inverted L feedpoint would not hurt. Mark N1UK Hey Gang, I've decided to replace my existing 56 ft TV Evans 17/80 trapped d
I preformed the copper strap around half of the copper clad ground rod and silver soldered the strap to the rod. Mark N1UK Has anyone come up with a way to connect flat copper straps to ground rods?
As another option, I believe that cadweld sells a form designed to work with copper strap and circular copper clad ground rods Mark N1UK -- Original Message -- From: "Mark Robinson" <markrob@mindspri
I did the same thing. I used Harris Stay Silv 15. It was a lot cheaper then http://georgiacopper.com/BrazingRod.html Since this is mainly molten copper, it won't flow very much when the heat is remov
Remove the u bolts. I think that the plate has to go in at the joint between sections and then taps with a rubber mallet will get the plate horizontal and then it can moved up inside the tower Practi
I was lucky to have the shorty Rohn 25 top section. I was able to install the plate, rotator and short mast in this section on the ground. Mark N1UK I found many areas on my 25G where I could tip the
The perfect tool that I found was the end weight that came with my Heil Boom Mike stand. The Heil instructions said not to use the counter weight as it must have fallen off and hurt someone. In fact
I looked at the LPDA and wasn't impressed by the front to back ratio, so I installed an Optibeam OB11-5. I have been very happy with it. Mark N1UK My Yaesu Mark 5 would begin to roll back its power o
I have used quite a few of the Amphenol 182134 and had no problems at high power levels Mark N1UK I don't always need a right angle connector but when I do I use Amphenol ., http://www.therfc.com/uhf
I have a Green Heron controller driving an M2 rotator. It uses a magnetic pulse encoder. I had a red and blue wire inside a foil shield with a drain wire inside. I grounded the drain wire and I also
oh I forgot I did this at the top of the tower, at the bottom of the tower and where the cable enters my shack. I also grounded the blue wire and shield at the back of the Green Heron box inside the