Re: [time-nuts] Z3801A and Z38XX Issues

I have a better idea ... anyone want a Z3801A ? I'll swap it for a late model, working Trimble T-Bolt. Problem solved. 73, Dick, W1KSZ Sent from Outlook From: time-nuts on behalf of Scott McGrath

Re: [time-nuts] Z3801A and Z38XX Issues

One more suggestion... I keep a stash of DB9-TO-RJ45 and DB25-TO-RJ45 adapters around. These come unassembled. I use these on all my Z3801A's, Z3815A's, and pretty much all other serial gear. You just put together the adapter you need by placing the pins appropriately on each adapter. With the

Re: [time-nuts] R XSRM Rubidium Standard

correct ! In a message dated 9/17/2017 1:51:30 P.M. Eastern Daylight Time, cjaysh...@gmail.com writes: Yes. An instrument with a calibration certificate is not necessarily accurate but it's inaccuracies are known and can be compensated for (but only to the accuracy of the calibration

Re: [time-nuts] R XSRM Rubidium Standard

good point In a message dated 9/17/2017 2:01:01 P.M. Eastern Daylight Time, jim...@earthlink.net writes: On 9/17/17 9:42 AM, KA2WEU--- via time-nuts wrote: > Simply call it " Make it to meet specification", N1UL > > > In a message dated 9/17/2017 12:39:32 P.M. Eastern Daylight

Re: [time-nuts] R XSRM Rubidium Standard

On 9/17/17 9:42 AM, KA2WEU--- via time-nuts wrote: Simply call it " Make it to meet specification", N1UL In a message dated 9/17/2017 12:39:32 P.M. Eastern Daylight Time, mag...@rubidium.dyndns.org writes: Hi, The word "calibration" is overloaded with multiple meanings, and

Re: [time-nuts] R XSRM Rubidium Standard

Yes. An instrument with a calibration certificate is not necessarily accurate but it's inaccuracies are known and can be compensated for (but only to the accuracy of the calibration reference of course.) On 17 Sep 2017 17:39, "Magnus Danielson" wrote: > Hi, > >

Re: [time-nuts] R XSRM Rubidium Standard

Simply call it " Make it to meet specification", N1UL In a message dated 9/17/2017 12:39:32 P.M. Eastern Daylight Time, mag...@rubidium.dyndns.org writes: Hi, The word "calibration" is overloaded with multiple meanings, and incompatible too. "calibration" is often used to describe

Re: [time-nuts] R XSRM Rubidium Standard

Hi, The word "calibration" is overloaded with multiple meanings, and incompatible too. "calibration" is often used to describe adjustments to make a device operate correctly, such as passing the performance checks. "calibration" in legal traceability is about measure the performance

Re: [time-nuts] R XSRM Rubidium Standard

As to the point most modern instruments have self calibration, Most of the time 'calibration' is simply the performance check adjustments are not performed unless necessary The difference being the instruments used in performance test are traceable to a national standards body. So whats

Re: [time-nuts] R XSRM Rubidium Standard

And if the performance is not validated, then they fix it.. I hope. I do a lot of phase noise measurements , spectrum analysis and power measurements and S/N ratio measurements so I need correct tool . In a message dated 9/17/2017 11:23:31 A.M. Eastern Daylight Time,

Re: [time-nuts] R XSRM Rubidium Standard

Modern test and radio equipment have self calibration capabilities, older analog do not. Calibration is not always need for just simple test, but for specification conformation it is useful. A bit of luck also helps. In a message dated 9/17/2017 8:08:00 A.M. Eastern Daylight Time,

Re: [time-nuts] R XSRM Rubidium Standard

On 15 Sep 2017 10:45, "Scott McGrath" wrote: > > Precisely my point, But when purchasing i expect to pay for a calibration at a minimum. I have on occasions requested sellers to send an item to the manufacturer (Agilent or Keysight) for calibration *before* shipping it to