My neighbor has 150' of 45G with elevated guys due to a narrow and sloping lot. The anchors were H beams which have more strength than a I beam. He also purchased them and had cut to size at a scrap
It indeed uses a hairpin match, almost a clone of the HiGain 66 which has been described in several VHF pubs as a rather inefficient performer. Changing the DE to an all metal T Match as used by CC
Hank, I'm a bit confused with that last paragraph. As a for instance I have 70-80' trees at my QTH. Just about anytime I climb the 180' tower I can start with almost dead calm at ground level all the
It appears that I will have to replace the 4:1 balun on my KLM 40M-4. Symptoms indicate the case is cracked since the VSWR goes way up when it rains. I have two questions: What is the most rugged 4:1
Eric, The DE mounting method would appear to be marginal for QRO or rain also. I've built many HF and VHF antennas and would not want to use the specified phenolic or G-10 in that application. In add
On Thu, 15 Apr 1999 22:56:28 -0400 "Tom Rauch" <w8ji@contesting.com> writes: Try a scrap metal dealer. A place called Merrimac Metals in Nashua, NH often has rolls of copper at scrap prices. Not flas
I'm looking for some serious ideas and suggestions before I go to Dudley Tower Service for a price quote. The tower is very similar to Rohn 65, 20' sections and a 24" face. Triangle mounting plates w
I aint no injuneer! You should put some anchor rods into the rock Pretty much planned on that Steve but the big questions are: Should I use the original pivot pin base or go to a mount based upon the
Agreed. But after 40+ years playing around with BIG horsepower autos I feel that stainless is one of the worse materials to use under conditions of high stress and torque. Instead, consider the highe
On Mon, 22 Mar 1999 18:18:19 -0800 dan hearn <dhearn@ix.netcom.com> writes: He told me the same thing when my donut ( BMW vibration dampener) failed causing $1200 worth of repairs to the tower. Howev
Dont know if this info made it to the reflector when I posted it elsewhere back in January. Dispatch Communications in Hudson, NH is now a stocking Rohn dealer. They will meet or beat Texas Towers pr
Disagree. With 3/4" hardline the stub will have to be changed. K1EA found that out when the 87A amp wouldnt load properly. I have used RG-11 CATV foam for stubs for over 12 years and find that I do h
On Tue, 30 Mar 1999 10:48:03 -0800 "Mason, Ken R" <ken.r.mason@intel.com> writes: Given the overload , IMD and phase noise performance of most VHF multimodes and the latest 160M to light allbanders i
You didnt mention the wavelength and bands of interest Rod but: - A bi-directional Beverage will show about a 3dB loss in its favored direction compared to a terminated one. This is assuming a full w
Yeah, but you roll it all up during T Storm weather season Frank. I used to blow at least 4 2W carbons every summer; just from induced voltages. Finally went to three 180 Ohm 10W non-inductive in ser