[time-nuts] Updated Shera controller

[Arnold Tibus]

No problem for the PRS10 - there is an external pps input.

For the FRK-RbO I don't have a practical solution yet,
because I don't have a manual with circuit diagram found
for this 5 MHz model. This RbO is actually running free,
drift controlled by an external resistor set by two 10 turns
potentiometers. I think it should be possible to inject a
current instead. The control by eg. the Shera controller
need some modifs for this purpose which I have not yet done.
The time constant need to be modified too I think.

Arnold

Am 29.07.2010 18:09, schrieb EWKehren at aol.com:
> Arnold
> how are you controlling the Rb with the Tbolt?   Bert
>  
>  
> In a message dated 7/29/2010 11:10:16 A.M. Eastern Daylight Time,  
> arnold.tibus at gmx.de writes:
> 
> Bert,
> I'm using at the moment a thunderbolt (with spare for  testpurposes
> using ext. other oscillators), a nice PRS10, a FRK-HLN-1A  (5MHz with
> external doubler to 10 MHz) and several HP10811.
> I would like  to build up with this a good and reliable reference
> (PPS and Frequ.). My  dream would be a good autonom. TIC with timestamp
> possibility. At the  moment the 53132A is doing a good job, but I miss
> the time stamp  possibility and single measurements at defined time  
> steps...
> regards
> Arnold,DK2WT
> 
> 
> Am 29.07.2010 13:50, schrieb  EWKehren at aol.com:
>> Arnold
>>  what do you use?  Bert  Kehren
>>  
>>  
>> In a message dated 7/29/2010  7:02:06 A.M. Eastern Daylight Time,  
>> arnold.tibus at gmx.de  writes:
>>
>> I do,  and I am also interested on other   improvements!
>>
>> Regards,
>> Arnold
>>
>>  
>> Am 29.07.2010 12:49,  schrieb EWKehren at aol.com:
>>>  Hi
>>> I think it would be nice to have  a show of hands as to  how many are 
>> locking 
>>>  a Rb to GPS and what   they  use. 
>>> Bert Kehren
>>>  
>>>   
>>> In  a message dated 7/29/2010 4:00:31 A.M. Eastern Daylight  Time,  
>>>  phk at phk.freebsd.dk  writes:
>>>
>>> In  message   <60EB5E7C69594F49B830463DC322EDB4 at athlon>, "Ulrich 
> Bangert"   
>>  
>>> writes:
>>>>> Uhm, isn't this  exactly where you want to use  the  
>>>>>  still-smelling-like-brand-new-car PICTIC II with a  good DAC   
>>>>> and a microcontroller   ?
>>>>
>>>> I guess the PICTIC II is  not very good  when  stop pulses arrive 
> BEFORE 
>>> start
>>>> pulses  which is a   normal condition if a average time interval of  
> zero
>>>> between local  pps  and GPS pps is the  aim.
>>>
>>> So configure it to use a  standard offset of  one  Xtal/Rb period ?
>>>
>>>  
>>  
>