Re: SOME MEASUREMENTS of a SML
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My loop diameter is 36-inches.? That makes the circumference 113-inches.? That's what I measured.
Dave - W ?LEV
On Sun, Oct 13, 2024 at 7:02?PM Mark Whittington AG5RT via <mark-whittington= [email protected]> wrote:
On Mon, Oct 7, 2024 at 10:22 AM, Jim wrote:
Verification would be welcome.
I put the loop dimensions in an online calculator often used to design small transmit loops ()
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? ? ?Loop Diameter: 113 inches (9.417 ft)
? ? ?Conductor Diameter:? 0.5 inches
? ? ?Frequency: 7 MHz
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I got the same resistance:
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? ? Loss Resistance: .050 Ohms.
? ? Radiation Resistance:? .004 Ohms
? ? Inductive Reactance:? 74.6 Ohms
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My opinion echoes the point made by Fred.? For receive applications, the loss resistance is so much smaller than the inductance reactance (1/1400 in this case), it can be reasonably neglected.?
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- Mark
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