I am experimenting with a flag antenna and it is 55 feet from the vertical leg of my 160 inverted L which is suspended from near the top of my motorized tower. I am getting coupling I believe from th
I like both designs. One to get up to the base of the mast and the other hunters platform up high on the mast when working on antennas. I have 16 feet of 2 chrome moly mast out the top of my tower an
Tom, The reflector should be floating like the dipole driven element. You are creating a 2 element yagi only in vertical arrangement Bob K6UJ Sent from my iPhone _____________________________________
I am overhauling my rotator and thought it would be good to replace my thrust bearing also. I have the Rohn TB3 bearing now. It has been in use for 18 years and feels pretty rough. Im thinking of goi
Stan, Thanks for the info. It looks like what I am looking for except that I would prefer one that can be greased. (Thats just me) tnx es 73, Bob K6UJ _______________________________________________
Gene, That is a beefy thrust bearing ! Bob K6UJ _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://
I know the Johnson matchboxes have limited range, cant use on the WARC bands for instance, and they are designed primarily for balanced feebleness, but how do they perform using unbalanced coax fed a
First, thanks gentlemen for all your info on using the Johnsons on coax. Much appreciated ! I received information from Hank, W6SX last night with more feedback. He has five of the KW Johnson matchbo
Doug, Jim nailed it. That is how to set up a bearing with an eccentric ring. I have the same bearing only it is made by SKF and has a four bolt mounting flange. Don't forget to cinch down the set scr
Peter, I agree with Dave. Heres what I use: a 2" long radius (1 1/2" will work too for just a few cables) pvc 90 degree elbow, cut into into two pieces long ways along the sides, (I cut the bell end
As Tom said, it is firmly attached. The end of the cable is clamped down to the side of the drum. You are fine. 73 Bob K6UJ _______________________________________________ ___________________________
I agree Rick. I use the Kellems and they work great. BTW, I want order some more but I use the sliding clamp type not the braided ones. Only see the braided ones now when I search on line. They only
Me again. FWIW, these are the cable strain relief grips I use. One nice thing about these is you dont have to rull the cable through to attach as you do with the braided ones. These install right on
OK, I see the issue. Like Rick, I used to use N connectors and abandoned them because of the center pin migration. I now only use good quality Amphenol PL-259's and everything has been fine. I am ana
Roger, Looks good and great price ! 73, Bob K6UJ _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http:/
I dont want sabotage our worm gear discussion but wanted to throw in a question about gear lube for a worm gear box. I am going to change the gear oil in my US tower box. It is a Hub City worm gear.
Hi Rick, It needs to be a specific synthetic gear lube. I called Hub City and they recommend their 460 PAG for worm gears. They said that the Mobil 1 Glycol 460 is what they are using. My Hub City wo
Matt, The viscosity is only part of the equation. I might be a comparable viscosity but there are many other ingredients that are formulated into the lubricants for specific applications. The gear lu
Matt, The original question was which Mobil 1LS, 75W90 or 75W140 is correct for Hub City worm gears. The answer is neither one. The gear lube recommended by Hub City is specifically formulated for wo
Rob, Please keep us informed on what you find. I am installing a new M2 Orion 2800 this month. I am planning on improvising a sheet metal skirt that will attach to the top of the rotator that will ke