[time-nuts] Checking accuracy of Rubidium standards

Dave Brown tractorb at ihug.co.nz
Sat Nov 8 21:03:25 UTC 2008


----- Original Message ----- 
From: "Jeffrey Pawlan" <jpawlan at pawlan.com>
To: <hamradio at oz.net>; "Discussion of precise time and frequency 
measurement" <time-nuts at febo.com>
Sent: Sunday, November 09, 2008 7:40 AM
Subject: Re: [time-nuts] Checking accuracy of Rubidium standards


>
>
> On Sat, 8 Nov 2008, Randy wrote:
>
>> I was wondering if it is worthwhile or even feasible to compare an 
>> LPRO
>> Rubidium standard against a Z3801.  Since their frequencies are 
>> probably
>> going to be extremely close anyway it would seem some special
>> method/equipment would be required for high precision. 
>> Suggestions?
>>
>>
>> Randy, W7HR
>> Port Orchard, WA
>
> The best way would be to compare the highest possible frequencies 
> you can
> generate with these two sources. I use two 10GHz sources that are 
> each phase
> locked to an external 10MHz reference. <snip>

Jeffrey-
 Details on the 10 GHz sources? Are these commercial or home built? 
I've been looking at this kind of scheme on and off for a while now 
but other than collecting up some possibly useful ex-commercial 
multipliers (10 GHz o/p w/g  assys) I have not progressed any.
DaveB, NZ





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