Looking at the chart of loss vs. frequency for Belden 1694A Coax I see
0.24 dB at 1 MHz, > 3 dB at 270 MHz and > 6 dB at 1000 MHz. I don't see any factor for frequency in I^2R. I suppose this could be skin effect increasing the conductor resistance.How do you tell when the losses are mostly due to the dielectric?
-- Rick
If you really want to get into it, here is a place that gives the info. Lots of math to look through. Much easier just to look at the chart for a good indication of where the losses are.
Nope. Copper plating is too thin. It is referred to as "copper clad".
Same thing for ground rods, except the reason in that case is abrasion durability.
Goddamned cross-posting retards.
Or I could go into the archives at work "Brand-Rex", and get the original designs specs and charts. Yes, those were the days.
We just retired the very first irradiation cross linking line ever made for production use of any product. The actual first cross linker irradiation unit for non commerical use was for the airforce, in a hanger.
Our unit now sits on the floor waiting for a home in some antique shop, 170k Watt version. It was getting hard to find chips to keep it operating. Many BB chips, round can op-amps. The osc for the magnetic amp was a UNI transistor that drove a transistor Flip Flip to generate a
100Hz sweep for the amp. In that circuit was wave shaping components to get a step peak on the out sides of the sweep before it changed direction.Neat stuff for back then, real engineers not uC coders!
Jamie
Did all this stuff make an electron beam?
Engineering schlip?
This reminded me that I once knew about "purple plague". There's an article about it in Wikipedia.
Mike.
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