[time-nuts] FS740 Thoughts?

2021-11-16 Thread Matt Huszagh
Hi, I'm curious to hear people's thoughts on the SRS FS740 (https://www.thinksrs.com/products/fs740.html) as a lab frequency standard. The phase noise performance of the OCXO and Rb options seem quite good (the same specs apparently apply during GPS disciplining too) | offset | TCXO | OCXO/Rb

[time-nuts] Re: GPS Elevation Mask Values.

2021-11-16 Thread Dan Kemppainen
Hi, I've recorded a log of the NMEA data from the three GPS Modules. I ran the Ublox through Ucenter, and the skyview plot doesn't show any tracks above the north pole (except the ones completely over and on the other side). The others are still running, but I expect the results to be similar

[time-nuts] Re: HP/Symmetricom 59551A showing wrong date

2021-11-16 Thread paul swed
Hal Thank you and I am cracking up, it is all about a persons perspective. Complicated or simple with the real answer being "Get-er-done!" because thats what matters. OK that makes sense to me in that it could be a single session. I would need to fire up the old z3801 and test. Currently its pretty

[time-nuts] Re: GPS Elevation Mask Values.

2021-11-16 Thread Dana Whitlow
Dan, in recent years I've read that DOD (or some such agency) has been running spoofing tests here and there, but always in remote thinly-populated areas (for what should be obvious reasons). As to why not all your receivers exhibit the "finger", I point out that the appearance of a GPS satellite

[time-nuts] Re: HP/Symmetricom 59551A showing wrong date

2021-11-16 Thread Hal Murray
> Not sure why I would need two sessions. Hal can you explain please? One for reading, one for writing. They probably aren't necessary. putty and similar serial control programs are complicated. I don't use one often enough to have one I'm familiar with. So I tried the low tech approach.