Re: [time-nuts] Road-trip and rubidium fiddles

2012-04-09 Thread Azelio Boriani
OK, thanks for the clarifications. On Mon, Apr 9, 2012 at 9:08 PM, Magnus Danielson wrote: > On 04/09/2012 06:40 PM, Azelio Boriani wrote: > >> Interesting, now two questions: >> >> >> It is clear that the short term is limited by the instrument trigger >>> >> jitter. A mixer pre->scaling is cl

Re: [time-nuts] Road-trip and rubidium fiddles

2012-04-09 Thread Magnus Danielson
On 04/09/2012 06:40 PM, Azelio Boriani wrote: Interesting, now two questions: It is clear that the short term is limited by the instrument trigger jitter. A mixer pre->scaling is clearly needed. that is, a mixing to take down the 10MHz to a lower frequency? Mixing with a higher stability sour

Re: [time-nuts] Road-trip and rubidium fiddles

2012-04-09 Thread Magnus Danielson
On 04/09/2012 06:55 PM, Attila Kinali wrote: On Mon, 9 Apr 2012 18:40:47 +0200 Azelio Boriani wrote: It is clear that the short term is limited by the instrument trigger jitter. A mixer pre->scaling is clearly needed. that is, a mixing to take down the 10MHz to a lower frequency? Mixing with

Re: [time-nuts] Road-trip and rubidium fiddles

2012-04-09 Thread Attila Kinali
On Mon, 9 Apr 2012 18:40:47 +0200 Azelio Boriani wrote: > >It is clear that the short term is limited by the instrument trigger > jitter. A mixer pre->scaling is clearly needed. > > that is, a mixing to take down the 10MHz to a lower frequency? Mixing with > a higher stability source? He probab

Re: [time-nuts] Road-trip and rubidium fiddles

2012-04-09 Thread Azelio Boriani
Interesting, now two questions: >It is clear that the short term is limited by the instrument trigger jitter. A mixer pre->scaling is clearly needed. that is, a mixing to take down the 10MHz to a lower frequency? Mixing with a higher stability source? And, >I also gave a quick tour of just how m

[time-nuts] Road-trip and rubidium fiddles

2012-04-09 Thread Magnus Danielson
Fellow time-nuts, I spent Easter leave to go on a road-trip, taking me by fellow time-nuts Björn and Poul-Henning, and naturally lots of other good friends. On my way out I lent Björn one of my HP5065A and a SR620. On my way back I looked at his measurements. One of the things which was obvio