[Lowfer] 10MHz GPS locked source G3RUH

[ToddRoberts2001 at aol.com]

Hi Laurence,
I am using a Thunderbolt GPSDO with output at 10MHz. This goes into a Dave  
Powis G4HUP tripler, model DFS30. The output of the tripler at 30MHz 
directly  drives the R75 timebase circuit in place of the built-in
oscillator. I don't notice any 0.1Hz wanderings or long term drift so far  
on QRSS60 or QRSS120 as far as I can tell. The line on the ARGO screen stays 
as  straight as an arrow when receiving WWVB on 60KHz
for example.
73 - Todd WD4NGG
 
 
In a message dated 10/12/2011 9:11:59 P.M. Eastern Daylight Time,  
hellozerohellozero at hotmail.com writes:
the scope says its locked - the output  at divide by at LF appears 
completely stable using SL so perhaps I shouldnt  worry :-) Does anyone with an R75 
with a similar set up using GPS "locked" get  the same long term wanderings 
- say up to 0.1Hz over an hour :-) at  10MHz...

thanks 
Laurence of Bartlesville  OKie