[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z381...

Bob Camp kb8tq at n1k.org
Mon Nov 3 18:55:49 EST 2014


Hi

I got a chance to look at phase noise today. I’ll try to post the plots later. Quick summary:

10 MHz - ugly. Lots of spurs, many of them close in. Poor phase noise floor. 

15 MHz - pretty good. Noise floor is not as good as a TBolt (by 5 to 15 db). Far fewer spurs than the 10 MHz, fewer spurs than the TBolts I’ve looked at.   

ADEV on a short run looks better than an un-tuned TBolt. I’ll need a much longer run to see what it’s really doing.

Bob
 
> On Nov 3, 2014, at 1:20 PM, GandalfG8--- via time-nuts <time-nuts at febo.com> wrote:
> 
> Ah, that's interesting, perhaps it wasn't me after all then.
> 
> Did you have the same flashing ON light symptoms?
> 
> Regards
> 
> Nigel
> GM8PZR
> 
> 
> In a message dated 03/11/2014 17:56:56 GMT Standard Time,  
> hmurray at megapathdsl.net writes:
> 
> 
>> It turns out this is what happens if you switch the "Output Level" from  
> 17
>> to 23, obviously an advisory indication to draw attention to the  higher
>> output. Switching it back reduces the level, as expected, and  returns the
>> LED function to normal. Phew:-)
> 
>>  I  can't remember switching it but don't suppose it arrived like that so
>> guess I must have done. 
> 
> My pair came with Ref-0 set at 17 and Ref-1 at  23.
> 
> 
> -- 
> These are my opinions.  I hate  spam.
> 
> 
> 
> 
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