If the separation is significant in terms of wavelengths and you had a diversity receiver system which would have separate inputs for each antenna, under some types of QSB conditions it would favor t
I built a "Phase Box" with sections 2, 4, and 8 feet long. It can be used to vary the "phase" between two antennas - e.g. vertical arrays or stacked arrays, and also as a "Line Flattener" when using
Tonno - I hope you had success last night / this morning If you have a minute to spare, I 'm sure many of us would be interested to know how things went . 73's, Gene / W2LU -- Original Message -- Fro
Hi Steve - I am successfully using that type of construction on elements in my Log Periodic. I have as many as 3 or 4 layer of tubing and as a quick "swag" at strength I just added the resistance to
Hi Wayne - I'm sure you will get all kinds of suggestions. Mine would be to consider something like a Tennadyne T-10 or T-12 Log Periodic plus a good 2 or 3 element 40 meter yagi as high above it as
And, don't forget relay contacts. Vacuum relays are usually ok, but any crack in the glass or ceramic obviously could be a problem. And, self cleaning contacts may be probably ok. But plain old conta
And perhaps have the boom truck/crane follow you home, unload it and place it at or near it's new home. Gene / W2LU Anyway, my problem is how to lower it. I'd put a ladder up to the top to remove the
While we're at it, does anyone have any experience interlacing 6 meters on a TH-6 boom? Gene / W2LU _______________________________________________ _______________________________________________ Tow
My 160 meter "half slopers" work great. Maybe it's because I call them "quarterwave slopers". Or, maybe because I never tried to "tune" them - just use a little L network for matching to the coax. Or
I couldn't resist this but, - Haven't we more than beaten the "Screw Anchor" subject into the ground. Gene / W2LU According to Anchor Guard, an anchor even all by itself can act as a corrosion cell:
Has anyone out there tried interlacing a 6 meter yagi on the boom with a TH-6, or other tribander ? Since the tribander elements shouldn't be resonant on 6 it seems as though it should be feasible, j
Hi Dan - I have a TH-6 mounted at 45 feet on a home brewed sidegate. I need +/- 2 feet clearance around the mast to stay clear of the tower. I had to move the mast/boom plate slightly and move one el
I don't understand the problem with copperweld. I have three 160 meter quarterwave slopers and three 80 meter bent vertical dipoles using alumoweld that have been up about 40 years with no problems.
My "stack" consists of an LP at 100 feet and a TH-6 at about 47 feet with separate feed lines to the base of the tower. Certainly not the ideal "stack". After correcting for velocity factor, baluns,
All kinds of good possibilities with 70 feet. Great height for 10-20 m. Works for 80 m quarterwave slopers. Not bad for 160 meter inverted L. Good for a 40 m bent vertical dipole array or with a husk
Bill - I agree 100%. As an old airline ad once read - "Getting there should be half the fun" !! There is plenty of good reference material available for those who are willing to get their hands dirt
Hi John - My conclusion is that "there aint no free lunch". I have designed and installed a four direction, dual (spaced 140 feet) , phased, pennant, receive system. It works very nicely but nothing
These numbers looks like calc's for bending moment at the top of the tower. What about torque ? Would it be possible to put the rotor plate lower in the tower and pick up some extra restraining momen
Hi Tony - Some time ago I tracked a 60 foot pole. It worked fine but then I "inherited" a tower. I haven't seen the track/ "carriage" you reference but it sounds like a good starting point. However,
probably DBi plus 6 DB ground reflection gain. -- Original Message -- From: "Richard (Rick) Karlquist" <richard@karlquist.com> To: "Robert E G Earl" <bearll@telus.net> Cc: <towertalk@contesting.com>