[time-nuts] Spectracom 8161 "Standard Frequency Receiver - Oscillator" for WWVB (and question...)

[Burt I. Weiner]

The 45 degree phase shift was a form of identification for WWVB and 
also served as a marker for chart recorders.  The shift occurred from 
10-minutes past the hour until 15 minutes past the hour.

Before GPS came along, WWVB was my main frequency 
standard/reference.  I had two Gertsch RLF devices and a "thumper" 
chart recorder.  It was really a lot of grief trying to keep my 
relatively poor crystal oscillators on frequency.  If I was able to 
see the 45-degree shift I felt as though I was really accomplishing 
something.  :]  I now have two DATUM 9390-52054 GPS units.  GPS has 
really spoiled me!

Up until the phase shift was added I used a Symmetricom 8170, not so 
much as a frequency reference, but as a clock in my shoppe.  The 8170 
is still running, but displays some strange combination of numbers 
that actually tell me the status of it trying to set.  I suppose I 
should build a de-psk-er thingy, but I lost the paper work on how to 
do it.The 8170 presently serves as a night lite.

Burt, K6OQK

At 08:36 AM 10/4/2020, someone wrote:
>Now, there is a 45 degree (2.1 micro) modulation on the WWVB 
>signal, > that shows up as time-tags on the strip-chart, so it is 
>not trivially...

Burt I. Weiner Associates
Broadcast Technical Services
Glendale, California U.S.A.
biwa at att.net
K6OQK