[time-nuts] Mercury Ion Clock

Alexander Pummer alexpcs at ieee.org
Sun Nov 2 20:22:59 EST 2014



what power is need at 40GHz?
73
Alex
On 11/2/2014 4:44 PM, Magnus Danielson wrote:
> Dave,
>
> On 11/03/2014 01:29 AM, Dr. David Kirkby (Kirkby Microwave Ltd) wrote:
>> On 1 Nov 2014 16:50, "Jim Lux" <jimlux at earthlink.net> wrote:
>> behind a scintillator)
>>>
>>> The 40 GHz stuff these days is not nearly as exotic as it used to 
>>> be. The
>> challenge might be test equipment when you're debugging your 40 GHz
>> synthesis chain.
>>
>> There's a fair amount of test equipment around to 40.0 GHz, but it is 
>> not
>> cheap even on the used market. But above 40.0 GHz it gets even more
>> expensive, as a lot of kit stops there. So a spectrum analyzer that 
>> works
>> to 40.1 GHz is going to cost serious money.
>>
>> I don't know what ones chances of feeding 10.04 MHz into the 10 MHz
>> reference input to 40 GHz test equipment to make it work to
>> 40*10.04/10=40.16 GHz. I suspect that you could get away with it.
>
> It would not really be needed. Only if you would be using a 40,5 GHz 
> oscillator and steer it, that 40 GHz would be exposed. However, I 
> would not be surprised if a source in the 100 MHz to 1 GHz range or so 
> would be used as an intermediary clock to a big 5 MHz fly-wheel. 
> Naturally that intermediary could be synthesized. There are many ways 
> to go about it.
>
> Cheers,
> Magnus
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to 
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



More information about the time-nuts mailing list