I have received several requests for the revised 10M dimensions to improve performance in the CW / SSB portion of 10M on the TH7 so I decided to simply post them on TowerTalk (in addition to DX-News
My gut instincts tell me it is WRONG to loop big grips without *something* to prevent the loops from collapsing under tension. As I recall, Preformed Line Products, the manufacturer of Big Grips, spe
My gut instincts tell me it is WRONG to loop big grips without *something* to prevent the loops from collapsing under tension. As I recall, Preformed Line Products, the manufacturer of Big Grips, spe
Since posting Roger Cox's enhanced TH7 dimensions, I've received a few inquiries about TH6 performance so here is my response to that question. The TH6 manual has dimensions for CW, LOW PHONE, and HI
I favor the tower in the ground approach. I've started several towers in the ground with NO guys, going up to ~25 ft to connect the first set of guys. I also suggest one set of guys, even if they are
The SIMPLE solutions are a single band inverted L wire antenna (lowest cost) or shunt feeding your tower. Why pay high prices for trapped or loaded antennas when a low cost solution is available and
I agree, 40M beams play VERY WELL at 90 to 100 ft. when sunspot activity is Medium to High. I would hate to give up my 80M dipoles at 130 ft. I wish they were at 160 ft ! As someone else said, EVERY
Most of my Barrel Connector adapters failed after a few years for various reasons. One of my longest lasting splices was made by cutting down the hardline, exposing ~1/2 inch of center conductor from
Hello Tim, A few comments. First, I once had a 2L Delta Loop suspended from a 20 ft alumunum boom (2 inch O.D.) at 120 ft. I placed pulleys at each end of the boom with a closed rope loop (closeline
John, You REALLY need to have a Mechanical Engineer look at your design to be sure you are not overloading the tower and / or BASE during the raising process. A friend designed a 70 ft tilt base Rohn
John, You REALLY need to have a Mechanical Engineer look at your design to be sure you are not overloading the tower and / or BASE during the raising process. A friend designed a 70 ft tilt base Rohn
N4KG anecdotal supporting evidence follows W8JI comment. W8JI response: N4KG: I agree with W8JI's comment about SS hardware being adequate for guyed towers. My 130 ft of Rohn 35 (15 inch wide tower w
W6QHS / W6NL found severe interaction between his HyGain 5L monobanders on a single mast, regardless of the configuration. The most severe degradation occurred on 10M if I remember correctly. I think
You may want to obtain the data sheet for a TA32 and compare dimensions with the TA33. Parasitic elements have a strong effect on feed impedance of the DE. Removing an element without compensating fo
Do you have an HF Yagi on top of your tower? Your BEST bet for 40M would be a rotary dipole of some sort, such as a CC D40 on the mast above a High Band Yagi, or, Match the BOOM of a high band Yagi a
At 20 ft, MOST of the radiated energy will pass into outer space. As most readers of TowerTalk know, I strongly recommend 40 ft as the minimum height for effective coverage of the upper angles suppor
Hi Mark, I think our main disagreement comes over the the maximum angle that is supported on 10M. I believe that to be around 20 degrees (at very high MUF's). Some time ago, someone plotted his 10M S
Hi Mark, I think our main disagreement comes over the the maximum angle that is supported on 10M. I believe that to be around 20 degrees (at very high MUF's). Some time ago, someone plotted his 10M S
around At 18 MHz, the highest angle supported by the ionosphere is around 30 degrees, so ALL of the radiation from 30 through 75 degrees goes into space. Total WASTE of energy above 30 degrees. At 7
around At 18 MHz, the highest angle supported by the ionosphere is around 30 degrees, so ALL of the radiation from 30 through 75 degrees goes into space. Total WASTE of energy above 30 degrees. At 7