[time-nuts] Spectracom problems - was, "used Spectracom"...

[paul swed]

Tnx hav data
Trvling

On Thursday, January 17, 2013, Burt I. Weiner wrote:

> Paul,
>
> I don't know if this will be of any help for your particular situation,
> but several years ago I had a problem where my Spectracom 8170 would not
> lock.  I checked and found that I had good, clean signal at the input
> spigot and the voltage going to the antenna was clean and correct.  After
> being patient with him for plenty of time, I finally broke down and called
> Spectracom and reached someone in service.  What he said to me was:
>  "There's a board with 4 electrolytics on it.  Change the electrolytics and
> he'll be fine."  (This is not the receiver board)  I did and my 8170
> started working again.  In fact, he was locking up and staying locked
> better than he had in all his previous life with me.  A few years later,
> and for some reason that escapes me now, I shot-gunned the entire receiver
> with new, high quality electrolytics.  I do not use him as a frequency
> standard, only for a fancy-shmancy clock.
>
> As far as how well he keeps time these days; he agrees with my two DATUM
> 9390-52054 receivers as best as my eyes jumping between the three of them
> can see.  By the way, speaking of my two 9390's, since I replaced the
> Caritronics switching power supply module inside with an external Cisco
> ADP-30RB, both are working fine and seem happy around 1E-12 and a DAC of
> about 29000.
>
> Burt, K6OQK
>
>
>  Burt
>> I don't know what to say at all but the bpsk signal does a number to my
>> 8170. So all I can do is scratch my head. Lucky you.
>> Regards
>> Paul.
>>
>> On Wed, Jan 16, 2013 at 7:01 PM, Burt I. Weiner <biwa at att.net> wrote:
>>
>> > Paul,
>> >
>> > I just went out to my shoppe and looked.  Mine is locked and has been
>> for
>> > most of the day, with two green lights.  Some time ago I added a meter
>> to
>> > the front panel that I connected to one of the test points.  It's
>> currently
>> > fairly steady except for the normal dips in carrier strength.  About
>> this
>> > time of day it usually starts to go nuts because of the Diurnal shift.
>>  I'm
>> > in Glendale, CA, just north of Downtown Los Angeles.  My WWVB antenna
>> is a
>> > ferrite rod type in a PVC tube.  It's been laying by the side of the
>> house
>> > on the ground for over 15 years.  That's where I've always gotten the
>> > cleanest signal - found that out when we re-roofed the house.
>> >
>> > Burt, K6OQK
>> >
>>
>
> Burt I. Weiner Associates
> Broadcast Technical Services
> Glendale, California  U.S.A.
> biwa at att.net
> www.biwa.cc
> K6OQK
>
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