Re: [time-nuts] "The Penultimate HP5065 A15"

2020-08-03 Thread Bob kb8tq
Hi > On Aug 3, 2020, at 6:32 PM, Poul-Henning Kamp wrote: > > > Attila Kinali writes: > >>> The main reason I dont just repair/replace the A15 is that >>> I want to find out how much instability the PSU contributes. >> >> There are very few points where supply voltage (in)stability

Re: [time-nuts] "The Penultimate HP5065 A15"

2020-08-03 Thread Bruce Griffiths
> On 04 August 2020 at 10:32 Poul-Henning Kamp wrote: > > > > Attila Kinali writes: > > >> The main reason I dont just repair/replace the A15 is that > >> I want to find out how much instability the PSU contributes. > > > >There are very few points where supply voltage

Re: [time-nuts] "The Penultimate HP5065 A15"

2020-08-03 Thread Poul-Henning Kamp
Attila Kinali writes: >> The main reason I dont just repair/replace the A15 is that >> I want to find out how much instability the PSU contributes. > >There are very few points where supply voltage (in)stability >contributes to long term frequency drift in a Rb vapor cell standard.

Re: [time-nuts] Understanding the 5371A TIA

2020-08-03 Thread Magnus Danielson
Hi Walter, On 2020-08-03 19:50, Walter Shawlee 2 wrote: > I recently got a 5371A, and it's working to at least some degree, now > I have to learn the interface > and controls to really be sure. > > The thing I am having trouble with is that the main reference is just > a regular 10811A OCXO. > as

[time-nuts] Understanding the 5371A TIA

2020-08-03 Thread Walter Shawlee 2
I recently got a 5371A, and it's working to at least some degree, now I have to learn the interface and controls to really be sure. The thing I am having trouble with is that the main reference is just a regular 10811A OCXO. as a result, and measurements cannot be any better than that

Re: [time-nuts] "The Penultimate HP5065 A15"

2020-08-03 Thread Attila Kinali
Hoi Poul-Henning, On Fri, 31 Jul 2020 21:31:13 + "Poul-Henning Kamp" wrote: > The main reason I dont just repair/replace the A15 is that > I want to find out how much instability the PSU contributes. There are very few points where supply voltage (in)stability contributes to long term