Bruce Griffiths wrote:
Only if the noise figure of the following amplifier is 4dB or so.
With no extra amplification is used one only needs a signal level of
+1dBm to achieve a phase noise floor of -178dBc/Hz if the output is
extracted through the crystal in such a way that the thermal
Richard (Rick) Karlquist wrote:
Bruce Griffiths wrote:
Only if the noise figure of the following amplifier is 4dB or so.
With no extra amplification is used one only needs a signal level of
+1dBm to achieve a phase noise floor of -178dBc/Hz if the output is
extracted through the crystal in
Garry,
Are you also saying your 100 MHz OXCO is making -178 dBc/Hz?
Unless your 100 MHz OXCO is some special $10k type, there's no way your OXCO
has a -178 dBc/Hz floor noise?
Regards
Martyn
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Martyn Smith wrote:
Garry,
Are you also saying your 100 MHz OXCO is making -178 dBc/Hz?
Unless your 100 MHz OXCO is some special $10k type, there's no way your
OXCO
has a -178 dBc/Hz floor noise?
Regards
Martyn
Can you explain this further?
It isn't clear to me that there is any
and frequency measurement
Subject: Re: [time-nuts] 74AC gates phase noise
Martyn Smith wrote:
Garry,
Are you also saying your 100 MHz OXCO is making -178 dBc/Hz?
Unless your 100 MHz OXCO is some special $10k type, there's no way your
OXCO
has a -178 dBc/Hz floor noise?
Regards
-nuts] 74AC gates phase noise
Martyn Smith wrote:
Garry,
Are you also saying your 100 MHz OXCO is making -178 dBc/Hz?
Unless your 100 MHz OXCO is some special $10k type, there's no way your
OXCO
has a -178 dBc/Hz floor noise?
Regards
Martyn
Can you explain this further
Rick Karlquist wrote:
I think I could approach this noise floor by taking a 10811
and bringing the signal directly out of the grounded base
buffer, and then readjusting the ALC to double or triple
the crystal current. The biggest unknown is at what point
the crystal sustains damage. The 10811
