Re: [time-nuts] Microsemi 3120A sold on eBay

It is interesting to note that the seller is in Salem, MA, a few miles south of Microsemi in Beverly, MA. PS: Here is a list of the many acquisitions they have made: https://www.microsemi.com/company/acquisitions John K1AE -Original Message- From: time-nuts

Re: [time-nuts] CSAC Project(was CSAC purchase)

Hi Yes, I have set up a CPU to dump all the data from a CSAC. Everything they list in their data sheet can easily be dumped via a standard UART interface. The serial protocol works exactly the way they describe. There is no “built in clock” so no ability to dump the time and date. You can

Re: [time-nuts] CSAC Project(was CSAC purchase)

Bob: Interesting but too general for me. Has anyone used a CPU to read the CSAC outputs for time/date, and for improving frequency stability? Ronald Hi “Included software” on the CSAC is a pretty short list …. There is not much past the “stuff” to set it on frequency and read

Re: [time-nuts] Microsemi 3120A sold on eBay

They're essentially the same as the original TimePod 5330A specs ( http://www.miles.io/TimePod_5330A_user_manual.pdf page 11). The 3120A doesn't display noise at offsets below 1 Hz, though, while the 5330A went down to 0.01 Hz. Also, some of the TimePod features are "added-value" software

Re: [time-nuts] Microsemi 3120A sold on eBay

On 1/27/18 3:33 PM, Bruce Griffiths wrote: http://www.chronos.co.uk/files/pdfs/mic/3120a.pdf Bruce On 28 January 2018 at 11:57 "Dr. Ulrich L. Rohde via time-nuts" wrote: What are the specs ? 73 de N1UL Sent from my iPhone > > On Jan

Re: [time-nuts] Microsemi 3120A sold on eBay

http://www.chronos.co.uk/files/pdfs/mic/3120a.pdf Bruce > > On 28 January 2018 at 11:57 "Dr. Ulrich L. Rohde via time-nuts" > wrote: > > What are the specs ? 73 de N1UL > > Sent from my iPhone > > > > > > On Jan 27, 2018, at 5:38 PM, John

Re: [time-nuts] Microsemi 3120A sold on eBay

What are the specs ? 73 de N1UL Sent from my iPhone > On Jan 27, 2018, at 5:38 PM, John Miles wrote: > > So, who's the lucky winner? Anyone on here? That's the first one of these > I've seen in the "secondary market," so to speak. > > > >

[time-nuts] Microsemi 3120A sold on eBay

So, who's the lucky winner? Anyone on here? That's the first one of these I've seen in the "secondary market," so to speak. https://www.ebay.com/itm/332531180078 -- john Miles Design LLC ___ time-nuts mailing list -- time-nuts@febo.com To

[time-nuts] CSAC Project(was CSAC purchase)

Well, if somebody will give me a CSAC, I'll add support for it to Lady Heather ;-) Heather runs on Windows, macOS, Linux (including the RasPi), and FreeBSD. --- > “Included software” on the CSAC is a pretty short list …. There is not much past the “stuff” to set it on

Re: [time-nuts] CSAC Project(was CSAC purchase)

On 1/27/18 8:10 AM, Bob kb8tq wrote: Hi “Included software” on the CSAC is a pretty short list …. There is not much past the “stuff” to set it on frequency and read out a few alarms. There's a half dozen serial ascii commands to the CSAC, and a corresponding number of output messages. None

Re: [time-nuts] CSAC Project(was CSAC purchase)

Hi “Included software” on the CSAC is a pretty short list …. There is not much past the “stuff” to set it on frequency and read out a few alarms. One thing that gets into a lot of these projects: We are Time Nuts and spec things in terms of time. This error over that period is some specific

Re: [time-nuts] Trimble Thunderbolt Issue

On Sat, January 27, 2018 9:47 am, J. L. Trantham wrote: > I remember an issue with another OCXO where the output coupling capacitor > connection failed and outputs were low. The thunderbolt uses the output of the OCXO for driving internal clocks, so likely the OCXO output is OK, but a buffer

Re: [time-nuts] Trimble Thunderbolt Issue

I agree with Bert. I remember an issue with another OCXO where the output coupling capacitor connection failed and outputs were low. Opening the OCXO and resoldering the connection returned the output to normal. Morion I think. I've never heard of this issue with the Trimble but not to say

Re: [time-nuts] CSAC Project(was CSAC purchase)

Bob: That makes sense, since you need some display short of the included software. Might end up giany cell phone size? Beyond my abilities, since I am a software guy, not hardware. Ronald Hi One way or the other you will need some “smarts” to do aging compensation. That implies

Re: [time-nuts] Trimble Thunderbolt Issue

Do not toss, first check output of OCXO if good keep if you do not fiend the problem. If no output replace. If L H shows that it works bring OCXO output directly.Bert Kehren  Sent from my Galaxy Tab® A Original message From: Richard Solomon Date: 1/26/18

[time-nuts] Trimble Thunderbolt Issue

I have a T-Bolt whose 10 MHz output has dropped off to about 6 mV. Using T-Bolt Mon, all the Alarms are Green and it shows Tracking 3 or 4 Satellites (small Hockey Puck Antenna). Without a schematic I am lost as to where to look. Anyone have any suggestions ? I had to toss an otherwise