[time-nuts] Loran and SRS FS700 in the UK
GandalfG8 at aol.com
GandalfG8 at aol.com
Sat Jul 11 12:04:35 EDT 2015
The FS700 data sheet specifies the standard oscillator to be be an ovenised
oscillator using an AT cut crystal, and the option 01 oscillator to be an
ovenised oscillator using an SC cut crystal.
The SC10 data sheet specifies it to be a "10MHz high stability oscillator
using an SC cut crystal for low phase noise".
All my units contain the SC10 SC cut crystal oscillator and all have
identical markings with nothing to indicate any degree of selection, this was a
significant factor in reaching my original conclusion.
However one describes them these oscillators certainly don't match the
specification for the standard oscillator but do seem to match that for the
option 01 oscillator, soooooo........:-)
Regards
Nigel
GM8PZR
In a message dated 11/07/2015 12:34:03 GMT Daylight Time,
phk at phk.freebsd.dk writes:
--------
In message <12d5cf.69a88993.42d22055 at aol.com>, GandalfG8 at aol.com writes:
>Another possibility of course is that the first unit was incorrectly
>marked and none of them have the option 01 oscillator:-)
I wouldn't trust selected OCXO's to be marked systematically
in that case.
--
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