>
>Hung up trying to calculate the Q of a coil I want to
>build. It will be 2 inches in diameter with 26 turns
>of #10 wire. The length is 5.3 inches. 4.9 Turns per
>inch. HAMCALC computes this at 11uh of inductance.
>
>
>If I got it right
>Inductive Reactance of this coil on 10 meters=
>2*3.14*29000000*.000011 or 2003 ohms
>
>Q of this coil should be the Inductive Reactance
>divided by the internal resistance of the coil's wire
>(factoring in the RF). This is where I got bogged
>down. Couldn't come up with an appropiate number.
>Where am I going wrong?
// One needs to calculate, or preferably measure, the RF-R of the wire
at 29MHz. However, with #10 Cu, it should handle c. 7Arms with ok
efficiency at 29MHz. With XL=2k-ohms, this is much RF-V.
cheers, Bill
- R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures.
end
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