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Old April 17th 04, 08:43 AM
Robert Baer
 
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John Larkin wrote:

On Fri, 16 Apr 2004 19:10:18 +0000 (UTC), "Reg Edwards"
wrote:

Coaxial ceramic resonators are cool... they are small, extremely
stable, and have Qs in the thousands.

How do you measure the Qs of resonators in the thousands?


Well, all the usual methods: resonance width, phase shift, ringdown,
stuff like that. I work with gadgets with Qs over 1e9, and people
measure them without difficulty.

John


Ringdown is the easist way when Qs are extremely high.