[time-nuts] Question for the cesium nuts.

[Dr Bruce Griffiths]

Hal Murray wrote:
>> 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)
>
>
>   
Hal

Active  masers oscillate.
Passive masers don't.

Bruce