Bob, If you want a good test, run it as a blind test. Get yourself a two position switch and ask someone else to connect the coaxes from the two antennas to the switch, and simply number the switch p
Jim, You're right, the orange trace on ScalarChokeMeasurements1.pdf is just a little difficult to correlate with its label. It'll be interesting to learn the experiences or test results from anyone w
Peter, You couldn't find a better professional in your area than W2GD. John has done much work on my 200 foot towers and he could resolve your unexpected problems quickly and easily. w2gd@hotmail.com
Gary, I use molded phenolic rod. This material is superior to the more common rod that is machined from flat sheet, at only a modest increase in price. It comes in 1/8 inch diameter increments in dia
Steve, You'll obtain better performance from dipoles or inverted vee's rather than from a vertical on 40 and 20. Two dipoles or inverted vees attached to a common feed will work well, especially if t
Lets hear some comments about this new MF broadcasting array: http://www.broadcast-transradio.com/Horizontal_Task_for_TRANSRADIO.pdf 73! Frank W3LPL _______________________________________________ __
It can be done! For several years in mid-1970s, the Potomac Valley Radio Club operated Field Day as W3AU/3 and W3GRF/3 from White Marsh Park in Bowie, MD (we now operate as W3AO in Glenelg, MD). You
Dave, Rugby was indeed a massive longwave and HF station. Unfortunately, technological progress made it obsolete. It was the fourth generation of transatlantic wireless stations in the British Isles.
Al, That old B&W insulator has a serious problem with water entry through the holes where the ceramic insulators pass through the body. Water inevitably gets inside via that path, then it gets inside
Gordon, Here are two useful Andrew Heliax connector installation instructions: http://www.avw.co.nz/images/Andrew/LDF4-connectorattach.pdf http://www.andrew.com/search/BN_50423.aspx You can purchase
Gotham advertised as the Gotham Hobby Company from New York in the early 1950s. They offered some antennas at less than $10.00. They moved to Florida in the mid-1950s and dropped "Hobby" from their n
Don, K1JYN is now K6LL. W1CMH is now W1RR, but has been inactive for some time. Another 1960s Providence, RI teenager was Ed, K1LDK, now AJ6V. I'm sure you'll find me in your 1960s index file, too. D
Baz, Forces on the short mast in a "assymetrical seesaw" would be very high. Here's how to do it safely: http://www.n6rk.com/falling_derrick_gme/falling_derrick_gme.html This can also be engineered a
Art, Maybe you shouldn't show your wife these photos: http://www.stuofdoom.com/blocks.html They're the guy wire anchors from the Tuckerton Wireless tower installed in 1913, and demolished more than 5
Ron, Here's the information you're looking for (and more). Not every field in the table is filled in. I've researched only the values of interest for my towers and guying hardware. The values given a
Gary, There's plenty of room on the rear panel of the Tailtwister control box to mount a filament transformer to boost the voltage. I did this successfully for years with cable runs well over 500 fee
John, Suggest u consider using a shackle to adapt the larger thimble to your existing brackets. I agree that your 2100 Phillystran is a more appropriate choice than 1200. Good luck with your project!
Dave, Many high power transmitter facilities have optical lightning detectors that almost instantaneously shut the transmitter down in the event of a nearby lightning strike or flashover. The consequ
George, I can supply the Joslyn J732 insulator shackles you need for much less than the wholesale vendors, just let me know how many u need. 73! Frank W3LPL -- Original message -- ___________________