[time-nuts] Z3815A Internal SMA 10Mhz Output

[Azelio Boriani]

Not necessary in the Z3815A: it has already a 10MHz output. There are 3 SMB
connectors near the rear connector, they are labelled so it should be easy
for you to locate the 10MHz and the PPS output. Now I can't open my Z3815A
to help, it is in use but from the picture found in Internet I see that the
SMB have labels.

http://www.vk3hz.net/riglock/VK3II_FT-736_Rig_Locking.pdf

It seems (the picture is a little blurry) that the 10MHz output is the
central SMB and the 1PPS is the one near the card edge. Then there is a SMB
near the Furuno GPS unit but I can't decode from the picture what it is for.

On Tue, Aug 21, 2012 at 4:11 PM, Adrian <rfnuts at arcor.de> wrote:

> Nigel,
>
> you can easily divide the 16.384MHz by 16.384 (2^14) to get 1 kHz for
> phase locking a 10 MHz oscillator with your GPS box.
>
> Adrian
>
>
> GandalfG8 at aol.com schrieb:
>
>> Not "every" GPSDO has a 10MHz OCXO.
>>   5MHz is, or was, quite common, and I've come across at least one GPSDO
>> with a 10MHz output that I assumed would use a 10MHz OCXO but that  also
>> turned
>> out to be based on a 5MHz unit.
>>   Then there's the variant of the Trak Microwave 8821B, as just one
>>  example,
>> that uses a 16.384MHz OCXO from which they derive  a 2.048MHz output
>> without 10MHz anywhere in sight.
>> When I bought one of those a few years ago I assumed that  all 8821Bs
>> would
>> be 10MHz GPSDOs, or some nice round figure  anyway, and it never even
>> occured to me to ask whether it might be  otherwise, which in this
>> particular
>> instance turned out to be a rather  expensive mistake:-)
>>   regards
>>   Nigel
>> GM8PZR
>>     In a message dated 21/08/2012 09:39:09 GMT Daylight Time,
>> azelio.boriani at screen.it writes:
>>
>> Every  GPSDO has only one 10MHz signal: the one coming from the OCXO. If
>> there are  many outputs they must always be the same. When the GPS has the
>> 3D fix (or  the position hold) and the algorithm has synchronized the
>> OCXO,
>> the 10MHz  can be said "locked" but, when speaking about GPSDO, the
>> correct
>> word  should be "disciplined". Yes, maybe there are NCOs and/or
>> synthesizers
>> to  put out different synchronized frequencies and signals based on the
>> OCXO
>> 10MHz.
>>
>> On Tue, Aug 21, 2012 at 1:14 AM, Jerry  <jsternmd at att.net> wrote:
>>
>>  In ZL1BPU's  GPSR-A User  Manual, it mentions that there are internal
>>>
>> points
>>
>>> that provide access  to regenerated system 1pps, 10MHz and 19.6608MHz
>>>
>> square
>>
>>> wave signals  which are present even before the system is locked.  After
>>>
>> GPZ
>>
>>>   lock is the internal 10Mhz SMA connector output identical to 10MHz
>>>  sine
>>> wave
>>> reference available from the rear coaxial connector  block?
>>>
>>> Jerry
>>> K1JOS
>>>
>>>   _______________________________________________
>>> time-nuts mailing list  -- time-nuts at febo.com
>>> To unsubscribe, go to
>>>   https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>> and follow the  instructions  there.
>>>
>>>  _______________________________________________
>> time-nuts  mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the  instructions there.
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
>>
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>