Re: [Openbts-discuss] FA-SY

[Joshua L. <jl...@th...>]

Quoting Sylvain Munaut (24...@gm...):
> > Are fa-sy series clock an accurate clock?
> 
> It doesn't stay stable very long.
> 
> Once you've calibrated it, you can use it for a while, but a few hours
> later, you'll need to re-calibrate from what I've seen.
> Good enough for research, but certainly not to run a network

The FA-SY (1) kit I have includes a warming resistor that heats the
oscillator up to a fairly constant temperature.  Once the clock warms
up, I found that I didn't have to keep calibrating it -- at least for my
research purposes.

However, I have to say that my ClockTamer is much better.  I'm patiently
waiting for ClockTamer-1.2 to come out...

Also, from what I've seen, the clocks on the USRP2 (and N210) are more
accurate and may not require an external reference.  Since OpenBTS works
with UHD now, anyone that hasn't purchased a USRP yet should seriously
consider the newer USRPs.