Hi; It has been a while, I think in Auto Mode it will determine it's location in Survey Mode 1SW4?, and if stationary will switch to Stationary Mode 3SW4? as a Freq Standard. FW is Free Wheel Mode where the oscillator is undisciplined. These units with the Ovenized Quartz option have Phase Noise usally about -85/90 dB @1Hz with a floor of about 155/160dB max which is pretty good, but not quite as good as a units based on a 10811 for example. But quartz unit to unit vary widely and like the 10811 the datum oscillator is quite common. You most likely can find a premium one with far better specs. Where the ET6000 shines is features such as programmable inputs and outputs. The manual should be easy to find on line. Best Wishes; Thomas Knox
> Date: Tue, 22 May 2012 09:15:45 -0700 > From: [email protected] > To: [email protected] > Subject: [time-nuts] Datum ExacTime 6000 > > Hi, > > I have just acquired a Datum ExacTime 6000 GPS Time Code And Frequency > Generator. So far, I am impressed how fast this unit has stabilized into the > low 10e-11 accuracy range... I verify this against the CHU station carrier > (located 15 Km away) . The version of ExacTime 6000 I have is equipped with > an OCXO mounted on the motherboard. The former owner told me that the unit > had been upgraded to fix an IRIG B format issue. I cannot find the info on > that upgrade. > > > So I have the following questions: > > - What is the general impression on the performance of this ExacTime 6000 box? > > - The SELECT MODE menu shows possible selections as AUTO, 1SV4, 2SV4, 3SV4, > FW or something close to that (I go by memory)... but the manual provided by > Symmetricom suggests selections as Auto, STATIONARY, DYNAMIC, FW... I would > like to set it to stationary. What selection should I make? > - The latest manual provided by Symmetricom is version 8500-0105. Is there a > newer manual available? > - I saw a claim that there is a Windows software to manage the device. Where > can I get it? > - I tried to output the 1PPS signal throught he rear BNCs. I can set all > rates from 10MHz down to 0.1Hz, but I don't see anything triggering on the > scope when I set it to 1PPS. Am I missing something here? > > I hope this is not too much work. I would appreciate any assistance, even > partial, with these questions. > > Thanks in advance, > > Bert, VE2ZAZ > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
