s I know that at my QTH, about once a year, we get bad enough winds to buckle 30 ft of unguyed 3" irrigation tubing. YMMV. Rick N6RK _______________________________________________ __________________
Jay posted to TT a few months ago that he hasn't sold Titanex for years. Rick N6RK _______________________________________________ _______________________________________________ TowerTalk mailing l
Maybe we're talking two different things here. I had 60 ft of 3" tubing up with guys at the top and middle. The top guys failed in a wind storm and the top half folded over. Same thing happened sever
Save your money. You can do just as well by using a passive transformer to connect the whip to your transmission line. I actually tried this in an A/B test with the DX Engineering amplifier. You migh
To clarify my earlier posting: I am only talking about replacing the amplifier at the bottom of the whip with a transformer. You still of course need a phasing network. This phasing network will be t
That is easy to do, but then you have to worry about coordinating tuning of multiple elements in an array. Any mistuning will cause phase shifts and throw off the array phasing. Also, the antenna gai
We just built a switch box using two Matsushita RF Reed Relays (available from AG6K, http://www.somis.org/). One relay goes to each radio and either grounds its antenna connection or connects it to t
I am assuming "end fed zepp" refers to an end fed half wave. I did a comparison of half wave verticals vs quarter wave verticals posted at: http://www.n6rk.com/ground.pdf. There is basically no diffe
Anyone interested in this topic should read the recent QST article on the AIM-4170 antenna analyzer. The article has a shoot out of this unit vs other ham units and even an Agilent NA. It is a true v
As I said, QST published it as an "article", although you could argue that they should have called it a product review. That is why you did not find it under product reviews. Try November 2006, page
Correct. I meant to say that the N2PK is similar to the AIM-4170, not the broadband units. Rick N6RK _______________________________________________ _______________________________________________ To
I have a MonstIR that I am putting on an HDX5106. I am going to use the M2 rotator that I got with the tower. If it breaks, I am going to replace it with a prop pitch. The ProSisTel will not fit into
That's really helpful, Frank. I had no idea how inadequate the Orion was. On K7NV's web site, he talks about "small, medium, and large" prop-pitch units. Is the "small" one adequate for the MonstIR?
Now I'm confused again. Is the problem with the Orion that the mast clamp slips, or the rotor breaks? I purchased a heavy duty Slipp-Nott for my Orion to fix the mast clamp slipping problem. I though
The drawings for my HDX5106 have many obvious errors. Also, the base drawing is wrong, it calls out 1 1/4 inch bolts when you actually need 1 1/8 bolts. Rick N6RK ____________________________________
Someone told me that UST provides just such a trailer for customers buying towers. You get a one day permit for it from DMV. You should be aware that if the total length of your towing vehicle and tr
In my case, the only rotor that is strong enough for my MonstIR and small enough to fit in my HDX5106 is a prop pitch. Since the HDX5106 is a crank up, the rotor has to fit ENTIRELY inside the tower
Not tubular towers, rather lattice type crankups. UST has those dimensions on its web site. For the "5" series towers, the max diameter is 8.25 inches. Besides this constraint, you would like to be
The prop pitch is many 1000's to 1. Yes It would be great if you could do that for us and start a business selling rotors for crankups. We need some long term strategy to overcome the finite supply o
The problem is that big antennas have a lot of wind load and a lot of momentum. With any backlash at all, they can bang back and forth using the element flexing to store energy. This violent jerking,