[Lowfer] Small loop calculator

[Laurence BY3A-KL1X China]

If been trying to calculate what sort of Voltages and impedances Im going to be faced with on my LF/MF loop in Alaska at 505-510kHz compared to 137khz and been fiddling with the values of

length diameter, capacitor values and voltages...

 

http://www.66pacific.com/calculators/small_tx_loop_calc.aspx

 

Im not sure given the real world of heights, ground permitivity, true conductor/skin whether it holds thru but plumbing in the figures for past oprations, in order of values it appears to give rationale figures. In all cases it tells me to keep the length less that 0,25Y...

 

Other good educational reading and the politicking of when a small becomes intermediate or large, and some good telling graphs on the links below.

 

http://personal.ee.surrey.ac.uk/Personal/D.Jefferies/loop.html and

http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=15200

 

 

Anyone have any novel methods of feeding say a 470ft circumference loop at 505khz down to coax in the end welcomed....

 

Laurence WE2XPQ as of next week...

BP51 Wasilla AK

 

Presently OM89UA China.

 

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