I have a US Tower MA-40, a MARB and MAF. I also have a SteppIR 3-element beam. What rotor do I need? One knowledgeable person about rotors has suggested thatSteppIR's put a lot of torque back and for
What windload and weight do you want on top of this tower? This should be mostly a matter of looking up the specs and picking from the "qualified" if you have those answers. I'm not even sure which "
Nonsense. I had an MA-550 up for 30 years with first a KT-34A and then a 2 element SteppIR. It was turned with an ancient Ham-M that over 10 years older than the tower. Except for the pot in the Ham-
On 6/25/2013 1:20 PM, Rick Karlquist wrote: Joe Nuccio wrote: I have a US Tower MA-40, a MARB and MAF. I also have a SteppIR 3-element beam. What rotor do I need? One knowledgeable person about rotor
Joe, I have a Force 12C4 on my MA-40 and use a Yaesu 2800 SDX. Works fine for the last five years. Of course YMMV. Chris K4WIN Sent from my iPad _______________________________________________ ______
Hi Chris, Thanks for the input and your experience. The concern seems to that the 36' elements on the SeppIR start 'whipping' back and forth while the antenna is being rotated which puts a lot of str
Maybe a different rotator controller with a different ramp-down speed control could be helpful. I really like the Green Heron controller that came with my K7NV Prop Pitch... 73 de Dick, K6KR --Origin
Any large beam, fiberglass tube or aluminum is going to potentially whip in wind. I've never seen any compelling evidence a SteppIR causes any more forces at the rotator than an *equivalently* sized
73 de Dick, K6KR --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Joe Nuccio Sent: Thursday, June 27, 2013 5:29 AM To: Chris Pinholster Cc: towertalk@contes
Dick, That might be an idea. But, right now I am looking into fabricating a rotor cage with a thrust bearing much like the very top of a Rohn 25. I have watched some yourtube videos of SteppIR's in
Steve, You may be right, but, I have just watched some youtube videos of SteppIR's in wind storms. The fiberglass elements really whip and move a lot. I was told the whipping effect when rotating th
Just look at the physics of it. Whipping of the elements represents stored energy, just as in a spring. If that energy is released at the end of travel it adds to the momentum of the elements that wo