The world's most accurate clock

[Rob Seastrom]

Mike ODELL <mo at ccr.org> writes:

> Alinco has a new(ish) "hybrid" HF+6 transciever (Classic analog superhet 
> with integrated what looks to be quality 24/192k quadrature ADCs
> after the last mixer with USB connectivity) but the thing most interesting
> is provision for input from a GPS to discipline the Master Oscillator.
> dunno if it has a 10MHz output but that would be nice.

Are you referring to the DX-SR9T/E ?  I couldn't find anything about
GPS-in and its stability is listed as 1 ppm, which is nowhere near GPS
land... http://www.alinco.com/Products/DX-SR9/

Do we really care that much about long term stability for the
frequency of our signals, so long as the effects of oscillator ageing
don't put us outside of where we're supposed to be transmitting?  I
mentioned at the technical meeting earlier this month that GPS is
fairly lousy for short term stability...

http://www.febo.com/pages/stability/

Is GPS slaving on HF radios just the equivalent of a wing and a big
loud muffler on your car?

-r