Having received such good assistance and info from this group, I am completing the cleaning of the Cushcraft A3 (w/ 40 meter addition) and am requesting further guidance from the group. The antenna i
Art, You have brought up a point that I have wondered about for sometime, and it is hose clamps. I have put up lots of yagis (including Cushcraft, KLM, Force 12, Hygain etc. Most use stainless steel
ORIGINAL MESSAGE: -- REPLY FOLLOWS -- If you suspect you have both stainless and non-stainless hose clamps, you can use a magnet to tell the difference. Good quality stainless is non-magnetic. Change
Also, make sure you check the worm screw with the magnet as there are some Chinese made clamps with low grade stainless with mild steel worm screws. Buy USA manufactured if possible. Mike --Original
had two experiences that made me reconsider what I was doing. The first was putting up a KLM 15 6 element yagi. It had been up for a few weeks when two of the hose clamps popped and broke. I have alw
This is only partially true. Some alloys of stainless are very definitely magnetic. YMMV 73, Doug W5GA Also, make sure you check the worm screw with the magnet as there are some Chinese made clamps w
Bill Did you still use the hose clamps too? I considered the SS screw idea but decided that I would use the rivets instead. One hole in the element not two. Years ago I used to use aluminum self tapp
I won't comment on the value of rivets vs. hose clamps since I have no experience. However, hose clamps I do know a little bit about having owned a 40' sailboat for nearly 30 years. My personal inter
Oops... While stainless steel screws may perform useful mechanical functions if applied correctly, they can NOT perform electrical functions at RF because of skin effect. 73 Frank W3LPL -- Original m
Oh.. I would think it more depends on what sort of electrical function you're worried about. SS isn't a great conductor, it's true, but, OTOH, the RF resistance of a clamp is still going to be a pret
Here is another alternative to hose clamps. Works for me. How to Use the Clamptite Tools as a clamp maker for 2 Different Types of Clamps http://198.63.56.18/pages/how2.html http://www.clamptool.com/
I'm sorry my previous comment about stainless steel screws was unclear. I'll try again. Yagi builders commonly use rivets, self-tapping stainless steel screws, or hose clamps to join and secure teles
Hi Bill Haven't used rivets here, but lots of clamps. I took 3 of my 40 meter verticals down to re-furb them and found that the screw assembly in the clamps had rusted badly. Don't know if it was bad
Tom, Its particularly difficult to maintain corrosion-free joints in verticals constructed of telescoping tubing. Inevitably, rain water washes through the joints and oxidation develops despite preve
ORIGINAL MESSAGE: -- REPLY FOLLOWS -- Definetly don't buy them. Ask any salt-water sailor how good the magnetic ones are. 73, Bill W6WRT _______________________________________________ ______________