CCWN 76:69
                                            
PHASE ADJUSTMENT FOR CCW KEYING Ralph E. Tyrrell

           The diagram below shows the modifications I have made
to my frequency standard to make it possible to adjust the phase
of the keying to agree with WWV second pulses. See Woodson (CCWN
75:22).             Depressing the STEP switch will move the
output .5 ms for each depression. Depressing the switch to RUN
causes the output to move 10 ms per second. Set the
advance-retard switch in the direction you wish to move.          
  I feed the 1 pps to the trigger input of a-triggered sweep
scope and the audio from WWV to the vertical input of the scope.
The phase of the keying pulses is adjusted so that the 1 pps WWV
pulses ( which are 5 cycles at a frequency of 1000 Hz) (The WWVH
pulses are 6 cycles of 1200 Hz. The JJY pulses are 8 cycles of
1600 Hz. MSF pulses are 5 cycles of 1000 Hz.) are received 11 ms
after the start of a keyed pulse. The propagation delay
(approximately, delay in seconds= distance in km/300,000) from
Bolder to New Hampshire is 11 ms.             We haven't tried
this on the air yet but it seems to be working as designed.