[time-nuts] retry: PRS10 has spurious frequencies
Brooke Clarke
brooke at pacific.net
Tue Apr 24 18:12:15 EDT 2007
Hi:
Sorry. That was a phase plot in the same folder on my computer. Here's my
spectrum plot.
Have Fun,
Brooke
http://www.PRC68.com
http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com
Brooke Clarke wrote:
> Hi Henk:
>
> Here is a spectrum plot from my PRS10. But it's also connected to the
> SR620 so I'm not sure where the spurs are coming from.
>
> Have Fun,
>
> Brooke Clarke
> http://www.PRC68.com
> http://www.pacificsites.com/~brooke/PRC68COM.shtml
> http://www.precisionclock.com
>
>
>
> Henk ten Pierick wrote:
>
>> Hi Said,
>>
>> Thanks for the picture.
>> I have inserted a 100MHz lowpass between the PRS10 and the Wavecrest
>> tot remove the spurious signals.
>> There is a large difference in phase noise close to the carrier as
>> calculated by the Wavecrest.
>> It is unclear to me if the spurious is normal or not. The spurious of
>> my PRS10 is 60dB down the 10MHz so it is strange that you see no
>> spurious.
>>
>> Henk
>>
>>
>> ------------------------------------------------------------------------
>>
>>
>> On Apr 24, 2007, at 20:18, SAIDJACK at aol.com wrote:
>>
>>>
>>>
>>> In a message dated 4/23/2007 10:51:38 Pacific Daylight Time,
>>> henk at deriesp.demon.nl writes:
>>>
>>>> Your picture's input level is 5dBm.
>>>> The SRS spec for PRS10 is 7dBm output. Were is the difference?
>>>
>>>
>>>
>>>> Did you measure wideband spectrum of the PRS10 output? Up to 1GHz?
>>>
>>>
>>>
>>>
>>>
>>>
>>> retry: the attachement was too big first time I tried sending this:
>>>
>>> Hi Henk,
>>>
>>> I measured my PRS-10 tonight on an 8563E, you can see the output is
>>> +6dBm.
>>>
>>> There are a bunch of spurs up to 200MHz, nothing noteworthy above
>>> that, I
>>> checked to 1GHz. See the attachement. Some of these spurs don't look
>>> like they
>>> are harmonics, but it would take time to investigate all spurs.
>>>
>>> Hope this helps you,
>>> bye,
>>> Said
>>>
>>>
>>>
>>>
>>>
>>>
>>> ************************************** See what's free at http://
>>> www.aol.com.
>>> <prs10.jpg>
>>> _______________________________________________
>>> time-nuts mailing list
>>> time-nuts at febo.com
>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>
>>
>>
>>
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> time-nuts mailing list
>> time-nuts at febo.com
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> time-nuts mailing list
> time-nuts at febo.com
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
-------------- next part --------------
A non-text attachment was scrubbed...
Name: PRS10.pdf
Type: application/pdf
Size: 10972 bytes
Desc: not available
Url : http://www.febo.com/pipermail/time-nuts/attachments/20070424/fcbf30c5/attachment.pdf
More information about the time-nuts
mailing list