And since very few of us operate in free space, dipole gain varies all over the scale dependent on hight above ground and the angle you want to measure the gain at. I have recently seen where a dipol
I agree with Bill, thats what Ive done. 160m antennas have changed over the years. It used to be that many of us just tied our HF coax together and fed it against ground and were happy to work a few
You are right, Jim, wider spacing is REQUIRED. From the ARRL Antenna Book: The line should be kept away from other conductors including downspouts, metal window frames, flashing, etc. by a distance o
You are right, Jim, wider spacing is REQUIRED. From the ARRL Antenna Book: The line should be kept away from other conductors including downspouts, metal window frames, flashing, etc. by a distance o
If I may ask, whats the appropriate tool when you have a rock layer 40 down? i tried a hammer drill, waste of time. I rented an SDS-MAX hammer and I got one in all the way, four others only made it m
Would grout provide an adequate electrical path to the rock ground? Does the rock itself provide an electrical ground? Ken _______________________________________________ ____________________________
It seems to me that the ground above my rock layer (@ 36-40) gets really dry during the summer. Does that dry dirt have enough conductivity to be useful? I do not know the answer to that question. Ar
You can rent the demo-hammer-ground rod driver adapter for about $8/day. Ken _______________________________________________ _______________________________________________ TowerTalk mailing list Tow
Oh, when we were younger (and dumber?), I had a 30 self supporting Dill tower in a 3x3x3 base that I climbed. I wouldnt do that today. Its not the base that worries me, its the metal structure. Who
On 26/03/2015 15:12, LY2KZ wrote: s there anyone who has had experience with fan dipoles? What should I keep in mind before starting to build? Yes, tuning perhaps will not be very simple, but hopeful
These concoctions are close to "Ed's Red" one of the better hombrew gun cleaners, developed by Ed Harris. It uses K1 kerosene, Dextron, mineral spirits, and acetone in equal proportion IIRC. Ed descr
I strongly agree with bending the ends in whatever direction works. My novice antenna was a 40/80 fan dipole with the 80m ends bent way back beyond 90 degrees. It worked. Another approach would the a
You say fan dipoles are heavy and difficult to get to behave. It all depends. You are right if done as a true dipole and for all the bands. I cannot envision a 160/80/60/40/30/20/17/15/12/10m fan dip
What about windmill towers, are any of them available? GL es 73, Ken WA8JXM _______________________________________________ _______________________________________________ TowerTalk mailing list Towe
I do not believe that is accurate. Black iron pipe is essentially the same as galvanized pipe. Neither are rated as structural material. Proper material is not pipe, but rather structural steel tubin
These are 10" standoffs for a $1.05. http://www.premier1supplies.com/detail.php?prod_id=35357&cat_id=46&species_id=4 You probably can find something similar at a local farm supply store. Ken WA8JXM O
I recently pulled a galvanized ground rod (a secondary power panel ground). In the 2' to 3' below ground section, more than half the rod was gone. This was in less than 10 years. A few more years and
The only recurring issue I have is debris collecting and blocking the rain gauge. From what I have read, the Davis units last longer than most. 73, Ken WA8JXM Questions: * anyone notice interaction/R
Aluminum fence wire stretches easily under load. It needs to be supported every ten feet or so, not ideal for long wire antennas. I won't even use it for electric fences ;-) Ken WA8JXM ______________
Patrick, Okay. You just said aluminum fence wire. I've used that for fencing and it stretches pretty bad. Steel core, aluminum coated would be different although myself I would go with copper coated