[time-nuts] Question for the cesium nuts.

[Hal Murray]

> http://www.kvarz.com/pdf/05%20CH1-75A.pdf (Active MASER)
> http://www.kvarz.com/pdf/06%20CH1-76A.pdf (Passive MASER)

What do "active" and "passive" mean wrt masers?

>From the above data sheets, active means bigger and better.  (and probably 
more expensive)


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