Since the original posting I have made some additional measurements and wish to comment on the 1850 kHz spur I observed. This spur is apparently caused by the following: The DXE Active Vertical is de
If people are going to speculate on applications why not consider replacing the Chrome-moly masts that weigh an incredible amount with a mast made from carbon-fiber composite. One would not need to w
Some links Comparison of properties of carbon fiber tubing and other types of material used to make tubing [e.g. 6063-T6 Al]. http://www.carbonfibertubeshop.com/tube%20properties.html Link to tubing
A nice discourse on this subject. Roger's statements support the Second Law of Life; "There are NO solutions in Life, only different sets of problems. You have to pick the problem you want to cope wi
Tom: I use about 45 feet following the trap. Am using it in vertical and a horizontal antenna may have a different requirement. Tod, K0TO _______________________________________________ _____________
The mystery tool is one that was designed to open cans, such as paint cans, with the non-looped end. The other end would open bottles that had "bottle caps" used to seal them. [An archaic form of sto
I have a small quantity of 51 ohm carbon film resistors which, when measured with my GenRad 1606A RF Bridge, indicate that they are 51 ohms (error is +/- 1 ohm or less) from 1-30 MHz. [This is the li
My MFJ 259B has provision for charging the batteries [internal jumper]. I use the trick Gene mentions to minimize drain when the unit is stored as well as to minimize drain from accidental turn on wh
While a graduate student at the University of Michigan in the late 1950's I made money replacing the lights on one of the AM station towers in Ann Arbor. I would put on the climbing equipment [such a
Terry: I think you have your numbers correct. I measure about 17-jX ohms for my 60 foot, top loaded vertical on 160. My ground system has about 40 radials but they are shorter than 1/2 wavelength on
Jay, you are entirely correct. I did garble your article and I apologize. I clearly remembered the inductor from the pictures and for some reason decided you had made the antenna 'long' and then used
I wonder what your total with the 100w and -6dbi antenna might be if you lived on the NW Coast of the US. It is better to be lucky [geographically] when operating 160m. Tod, K0TO ____________________
Don't forget to include the extra cost of shipping the 3000 extra pounds of metal. The land shipping might be like shipping three of the US Tower HDX-571MDPL's . Tod, K0TO ___________________________
Clay: On May 12 in a 65+ mph wind my telescoping tower and beams returned to the earth. After gathering the data to make an insurance claim I have been looking at options for a replacement tower. My
I sent out my request for information to Clay, W7CE, and accidently included the entire list. I apologize. However, I am very pleased with the several offers to answer questions I have received alrea
If you have an HDX572 which is surplus to your needs I would be interested in discussing it with you. Tod, K0TO Email direct => tod@k0to.us _______________________________________________ ___________
Is anyone using a Rohn TB3 thrust bearing at the top of a US Tower HDX series tower? Tod, K0TO _______________________________________________ _______________________________________________ TowerTal
I may have some straight forward, climb no higher than about 30 feet antenna work to be done in late August or early September. If there is anyone who does such [experienced but not necessarily full
Does anyone have a good email address for Tom Schiller, N6BT? I sent off a complimentary email to Force 12 and tried to copy him but my email address for him failed. Tod, K0TO _______________________
I would like to correspond with anyone who has experience with the US Tower MRF [mast raising fixture]. Tod, K0TO _______________________________________________ _____________________________________