[time-nuts] An Other Ublox 8

[ew]

One more comment thank you Juerg for all the data analysis.                                     Bert Kehren In a message dated 1/27/2021 7:33:09 AM Eastern Standard Time, time-nuts at lists.febo.com writes: 
Over the last couple of years I have looked at the LEA M8F, it is a GPSDO with 1 pps.  not needing Saw Tooth correction. How ever its frequency output is not time-nut friendly. 10 MHz is only 5 E-9. An ebay post showed an 8F board with intriguing 24 MHz data. Juerg did some tests with an SI 5351 at 24 MHz. Spec is 25 to 27 MHz but his tests at 24 MHz shows 10 MHz at 1 E-12.  So I bought some, one on the way to Switzerland. Also made some of our heavies aware of our work. The seller initially was not going to make more boards but changed his mind. I suspect the parts a pulls and he has to make boards to make sure the F8's work. My goal is to use it for aging tests always use 24 to 48 hour average testing. See my attached results exceed my expectations. 2.39 E-13 mean! Will update once Juerg has his unit and uses a SI 5131 to generate 10 MHz.  I can use the 24 MHz it is a true representation of the GPS signal. Can also use other GNS signals. Leave that up to others.                                                                         Bert Kehren_______________________________________________
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