K7ITM wrote:

Oh, crap. Let's try that again. I looked at the table above and it
did NOT look right. Wondered why the ratio of copper to dielectric
loss didn't get worse with increasing frequency. Made a mistake in
the spreadsheet that calculated it. Should have spotted it before I
posted it. This is probably better:

Total Copper Dielectric
1MHz 0.138 0.137 0.001
10MHz 0.442 0.433 0.008
100MHz 1.454 1.370 0.084
200MHz 2.105 1.938 0.167
500MHz 3.482 3.064 0.418
1GHz 5.169 4.334 0.836
2GHz 7.800 6.129 1.671
5GHz 13.869 9.690 4.179

So the contribution of dielectric loss by the time you get to 5GHz is
significant, but not dominant if the dielectric is high quality and
uncontaminated.


Still, nicely done. Thanks for your efforts and explanations.

tom
K0TAR