[time-nuts] Loran and SRS FS700 in the UK

GandalfG8 at aol.com GandalfG8 at aol.com
Sat Jul 11 16:04:35 UTC 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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