My Round Tuit finally arrived and I?m hoping to have my single-point entry panel finished in a couple of weeks. What I?m trying to figure out the proper way of mounting the Polyphaser IS-RCT (8-termi
Author: "Richard M. Gillingham" <rmoodyg@bellsouth.net>
Date: Thu, 11 Jun 2009 22:24:12 -0400
I mounted mine using a piece of aluminum angle stock. Drilled 1/4" on one face for the Polyphaser and the mounting bolt throught the other face into a copper plate I use for my SPG. You can have one
The ICE might be a better solution, in any case. However, to each their own. I'd advise against the aluminum and seriously check out www.georgiacopper.com for their copper plates. VERY reasonable pri
http://www.rogerhalstead.com/ham_files/cablebox.htm (2nd image on left) shows a single Polyphaser, bulkhead mounted. They also have a right angle bracket so may be surface mounted on a flat Aluminum
I used small angle brackets from the hardware store to mount my IS-RCTs to the ground plates in a couple of metal utility cabinets back about 12 years ago, when IS_RCTs were somewhat reasonable in co
Why do you advise against an aluminum ground plate? Are you only against outdoor use or indoor as well? I have a pair of Hoffmann metal utility cabinets with aluminum grounding plates inside. They se
Mostly because of copper's improved conductivity over aluminum, as well as its electrical behavior when corroded, as opposed to aluminum's. However, I'm sure there are plenty of folks using aluminum
Why do you advise against an aluminum ground plate? Are you only against outdoor use or indoor as well? I have a pair of Hoffmann metal utility cabinets with aluminum grounding plates inside. They se
I have a similar situation to yours, but it's intentional. My outdoor NEMA boxes have an aluminum plate that mounts to the back of the box. But I wanted a bulkhead for mounting the suppressors so the
I was wondering the same. Aluminum is almost the same conductivity as copper and much cheaper and easier to machine. For the same money, one can probably get thicker aluminum (better mechanical prope
Aluminum has 60% of the conductivity of copper. That's not "almost the same." In order to get the equivalent conductivity out of aluminum, you have to make it thicker, which isn't always the best cho
All this discussion concerning how to mount the polyphaser to the SPG. If aluminum is so bad, why is the body and the mounting tab made of it? Follow the instructions provided with the item, or, chec
I (or my team) is in charge of about 4000 towers in the SE. They have from 1 to 15 carriers on the towers depending on the tower. Not one (yes, not one) has anything but a copper buss bar that the po
What are the buss bars connected to (besides the feedlines)? 73, Jim K9YC _______________________________________________ _______________________________________________ TowerTalk mailing list TowerT
For DC resistance.. for RF, it's actually better (skin depth is thicker because the conductivity is lower).. That's not "almost the Not sure about that.. AND, the resistance of the plate is insignifi
Clarification... better than 60% of copper, not better than copper overall! _______________________________________________ _______________________________________________ TowerTalk mailing list Towe
2 at the tower base to the Ground ring. 2 at the shack entrance where the polys are mounted. All connected to the ground ring. 73 Dave What are the buss bars connected to (besides the feedlines)? 73,
Sounds pretty good, as long as "ground ring" includes the building ground, telco ground, and the power system ground. 73, Jim K9YC _______________________________________________ ____________________