Thanks for that.
It does seem the specification of the 10811-60111 is poorer than the 10811A, as the formers time domain stability at 1s is twice as bad (10^-11) compared to that of the 10188A (5x10^-12), and just about every other parameter is "not specified" on the 10811-60111.
It is particularly annoying when I has some suspicions it was not an 10811A, so asked the seller
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7505853855
and he confirmed it was, and then said I could have an 10811-60111 if I wanted for the same price. I made it clear I did not want it, so he sends me it anyway!
I sent him a mail saying:
"I have sent you payment for this. Please ensure it is the HP10811A and not the HP10811-60111, which you said in an email you also had"
So he sends me an HP10811-60111 anyway!
Dave Kirkby
Hubert v. Bonhorst wrote:
Sorry for page flipped. Attached pdf is for 10811-60111 Best regards Hubert DB7ME
-----Ursprüngliche Nachricht----- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Im Auftrag von David Kirkby Gesendet: Samstag, 23. April 2005 16:32 An: Discussion of precise time and frequency measurement Betreff: [time-nuts] HP 10811A vs 10811-60111
Can anyone tell me the difference between the two above oscillators? I have the manual for the 97page manual (page 2 is upside down), but it does not mention the latter.
However, I think I have seen a small couple of page document somewhere which listed the 10811-60111 as having no specification for phase noise, and so therefore not an ideal choice for a low phase noise oscillator. One might as well start with something that is specified for a low phase noise.
I can't however now find the exact spec of the 10811-60111. Can anyone give me it?
I won an auction for a 10811A on eBay and the seller said I could have a 10811-60111 for the same price if I wanted it too. I said no, I wanted the 10811A, but he has sent me the 10811-60111 instead.
Is the 10811-60111 inferior? How does it differ from the 10811A?
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