Does anyone have any experience on phasing multiband verticals such as the Cushcraft R7000, R6000, or HyGain DX-77 ? It would be interesting to see how well such a setup would operate in a contest si
The ELECTRICAL spacing between antennas will be different on EVERY band, as will the PHASING from the feedlines (unless you use identical lengths). IF you use identical feedlines, you can feed them I
There IS one way to do a 2-element multiband vertical array, and that is described on pp. 10ff of the ARRL antenna compendium, volume 2. Most of the patterns are bidirectional, and the control scheme
To: <towertalk@contesting.com> It is possible to design a single phasing system that functions correctly over octave bandwidths, but there are problems. Here's how you do it... You simply invert the
Looking to phase two multiband verticals, probably Butternut HF6, for 40m, using 1/4 wave spacing and either phasing lines or a hybrid. Looking for suggestions on how to switch them so I could contin
Shouldn't be difficult at all. Find the remote switching circuit in the ARRL Handbook for 'over the coax' switching and you can use +/-/ac/nothing for 4-position switching. 1. normal [probably 2el 40
Jamie, I have two Force 12 160 mtr verticals that I have spaced at 1/2 wave and am using the ComTek PVS-2 system. It uses a three wire configuration to switch three directions. Before I bought that,
I am going to step in & out of this thread many times only because of my experiences/work at/on phased vertical arrays. Who and more importantly WHY was the decision made that the phasing must be don
Dick, I am in the process of installing a pair of 40 meter verticals and am awaiting delivery of a COMTEK PVS-2 for phasing. I have one antenna installed and about to plant the second. In your email
How about cost? I, personally, can hardly afford a single 325-foot run of coax to my 65-foot DX Engineering verticals, much less two! If you have deep pockets, go for it, but some of us don't! Jack,
Interesting, Jack. (really... this is a serious question.) What is the cost of doing it your way at the antenna? Thanks. == K8JHR == == _______________________________________________ _______________
I think one reason that hams would rather put the phasing network close to the antenna elements is that the pattern bandwidth is almost always better the closer these networks are to the antenna elem
I thought I would answer in one big email rather than 20 small emails so here goes: Jack W6NF said:""How about cost? I, personally, can hardly afford a single 325-foot run of coax to my 65-foot DX En