[time-nuts] NTGS50AA, better than Thunderbolt?

[Mark Sims]

An interesting test would be to test a Nortel unit and a Tbolt with the same oscillator and see if the basic hardware had any difference in performance (I bet they would be very close).  One issue is the Tbolt can swing the DAC -5V .. +5V,  the Nortel from 0V .. +10V (with a default of 0V .. 6V).  The standard Tbolt osc EFC has a -3.5V/Hz gain.  The Nortel has a +1.5V/Hz gain.  The Tbolt can easily be driven with high quality/low noise linear supplies.  The Nortel limits you to the onboard DC-DC power supply (unless you want to do some hacking).