Fuller's Earth is different than bentonite. Bentonite is a type of clay. Fuller's earth is also known I think as diatomaceous earth Scott Sodium Bentonite, yes that's the stuff thank you very much fo
I use DXLabs Suite - excellent product and the best customer service! I have never had a product that had better support. I don't think Dave, AA6YQ ever sleeps - and the best thing, is that it is fre
One good reason is that copper is anodic to zinc and steel. You will get preferential corrosion of the zinc and eventually of the steel - eventually corroding the steel until it is unable to support
I have a full size 80M loop up approximately 40 to 50 feet in an approximate square. I also have a modest vertical, 40 feet tall, with capacitance hat. Comparing signals tonight, the loop is obviousl
6061-T8 is not a new alloy, but a relatively new temper. 6061-T6: Solution heat treated and then artificially aged. Mechanical property limits not affected by cold working. Most alloys in the -w and
I have decided to take the plunge and put up a simple antenna for 160M. Several comments: It has to be simple and not excessively expensive; I have limited room for antennas on my lot, and very limit
That looks like it would work well - but unfortunately I really don't have the room for it - I am really space constrained. I will be putting up the antenna in an area between my house and the neighb
There is a program called PolarPlot http://www.g4hfq.co.uk/plphelp/plphelp.htm )( that can help map out your pattern fairly easily. All you need is a constant RF source at the frequency desired, and
Any one have any quality photographs of the shaft failure? I am looking at photographs of the fracture surface. That should tell us the mechanism of failure. Scott Mike's tower sounds like the shaft
I guess it depends on what you want to accomplish. If short contacts on 80M are the primary goal, then lower (40/50 feet is good. I use this antenna to excellent effect on 80 and 40M during Field Day
Fatigue load is about 50% of the ultimate. However, this is on a perfectly polished bar. Any sort of oxidation or other flaws, such as a nick will reduce the life by a lot. Easily determined from an
Larger diameter Velocity factor of the wire?? Less resistance of the wire?? Gary J N5BAA I have been using an inverted l from my hdx 89 tower with much success. It is made of #12 stranded wire and I
That is why I gave up - my antennas were not worthy. I don't have multiple towers, with multiple wavelength mono-banders or stacked Steppers. So I figure that there was little point of continuing reg
What were the reported errors in measurement? Was it sensitive enough to differentiate the various measurements? I believe that the triband report was done as accurately as possible and the antennas
I personally like a simple 80M loop. Nice high angle of radiation, simple and inexpensive Looking at the number of states worked during CQ WW RTTY it is pretty obvious I need antennas for working the
I feed it with ladder line and use a tuner. Now it would be possible to use a 4:1 balun and coax into your internal tuner (a bit quicker because of memories). Alternatively you can put up a low dipol
Mineral oil with an antioxidant will work fine - or using straight mineral oil. Canola would work although also has problem of going rancid. But you can change it cheaply My Cantenna-type dummy load
Unfortunately they don't give the viscosity of the oil. Most transformer oil is mineral at a viscosity of 10-20 cst @ 40C. However, mineral oil can range from 10-1000 cSt. An identical viscosity mine
Several things: Water is no good for all the reason cited: Corrosive, and conductive. Ethylene Glycol suffers from the same fate - it is also corrosive and conductive. Antifreeze, contains corrosion
You are lucky you had a pension. Most are taken away or simply not there. This isn't a menial minimum wage job. This is a position that pays well - even by East Coast standards. You're partially righ