Topband: Q of inductors
Tom Rauch
w8ji at contesting.com
Fri Aug 31 13:01:27 EDT 2007
> Q is still about 160 with an RF resistance of approx 2.5
> Ohms.
> For comparison, a 28uH rotary measures about 210 and
> a piece of Miniductor is over 300. Are my measurements on
> target?
Roger,
If you look at:
http://www.w8ji.com/loading_inductors.htm
you'll see what I typically measure on inductors.
I virtually never find an inductor with a Q of 1000. When I
do they are large copper tubing with optimum form factor.
Most airdux and miniductors are in the 200-350 range, but on
occasion can be higher.
It looks like what you measured is within reason of what lab
measurement standard equipment indicates.
73 Tom
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