Thanks for the reference, Paul. 73 from Ian GM3SEK it it is legs. phase that he shows an _______________________________________________ _______________________________________________ TowerTalk mail
No, it hadn't - thanks, Steve. 73 from Ian GM3SEK _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http
Several good points there, about the variability of ferrite cores. Ferrites are, quite literally, "bakery products". Just like bread and cakes, the properties of ferrites depend on the correct ingred
HFTA does not require evenly spaced data points, so the 149-point limit in the data file is not the problem it might seem. If you are prepared to remove some redundant data from the computer-generate
aluminum make always If the threads in aluminium rotator castings aren't too badly damaged, a simple alternative is to use RED Loctite to fix short threaded studs permanently into the rotator base. (
How There is no simple answer because SteppIR have gradually improved the design and quality of the fiberglass tubes and the EHU moldings. Today's SteppIRs might well survive in conditions where olde
with Good points from Jim. 1. Mesh grounds have multiple current paths in parallel, so the individual wires don't need to have especially high conductivity. What does matter in a mesh screen is that
the mesh radials The wires at right-angles to the main direction will probably have little electrical effect; but if the currents in those wires are small then the losses (depending on I-squared) are
I tried split bolts, and they were greatly inferior to the crossover clamps. Split bolts do not allow crossover connections and the incomplete threads aren't strong enough to allow the nut to be cra
I use Blue Loctite 2400 which comes in a simple no-mess squeeze bottle. Apply 2-3 drops on the bolt thread at the location where the nut will be tightened, and while still liquid the Loctite will act
using SS It varies - I tend to use whatever is supplied. With plain nuts I would always use the Loctite. With Nyloc nuts I would only add the Loctite if the hardware was showing any sign of galling.
RG59/RG8X. Thanks for last night's QSO in CQWW RTTY, Jim (with GM3W). A small clarification while waiting for 20m to wake up... The dielectric of the coax which affects the choke resonance is only t
Here in Scotland we're surrounded by mile upon mile of dry-stone walls, so I know the problem! Although no two walls are the same, my first choice would be to probe the gaps between the large stones