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

GandalfG8 at aol.com GandalfG8 at aol.com
Tue Nov 4 06:23:13 EST 2014

Hi Bob,
Thanks for that, I wasn't expecting too much from the 10MHz, thinking of it 
 as probably a quick and dirty reference for portable test gear, but maybe 
wasn't  expecting it to be quite that bad either:-)
15MHz I would have expected to be reasonable, and my goal is still to  
extract 5 MHz directly from the oscillator, buffered as necessary  but with as 
little degradation as possible, but for now I've had to content  myself with 
live monitoring of the plots on a couple of Pendulum counters, what  with 
all being as chaotic as usual round here and far too much test gear  stacked 
up in piles and nowhere near the bench:-)
You've whetted my appetite though so will try and stretch some cables later 
 and take a closer look at the outputs.
In a message dated 03/11/2014 23:55:52 GMT Standard Time, kb8tq at n1k.org  


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 

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 

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.


> 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
> 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 
>> LED function to normal.  Phew:-)
>>  I  can't remember switching it but  don't suppose it arrived like that 
>> 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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