Re: [time-nuts] Symmetricom ET-6000 TCXO receivers

2016-04-17 Thread Robert Watzlavick
Erik, I upgraded my ET-6000 TCXO receiver to an OCXO. I was able to get Symmetricom to send me all three ROM images (TCXO, OCXO, Rubidium) so I uploaded them to the KO4BB website: http://www.ko4bb.com/getsimple/index.php?id=manuals=01_ROM_Images_and_Drivers Get the file called

Re: [time-nuts] Symmetricom ET-6000 TCXO receivers

2016-04-17 Thread Bob Camp
Hi You are correct in your observation that the short term stability of a TCXO *does* impact GPSDO performance. An OCXO (once it has warmed up and stabilized) will do better than a TCXO. Because of the higher sensitivity of a TCXO on the EFC, there will be some change to the firmware when

[time-nuts] Symmetricom ET-6000 TCXO receivers

2016-04-17 Thread Erik Thomassen via time-nuts
Good evening  group ! I am in the fortunate situation to have "inherited" two Symmetricom ET6000-TCXO receivers. Seemingly  fine receivers but i do not like the way they "drift" plus /minus. They never seem to settle, even free-running OCXO's seems to be far better over short time. Yes, I