I sent the following to John Lowe of the NIST regarding the WWVB change
proposals. His comments follow.
Dear Sir,
I just read your whitepaper on the new modulation scheme proposed for WWVB.
It seems that you and the other authors of this paper have addressed the
concerns of people that use WWVB
So I gather from this they are working on something, but no details were
given.
One possibility for a workaround to keep the classical receivers happy
is to leave some residual carrier. Instead of a 180-degree phase
shift, make it 90 or 120, so that the signal can be regarded as the
sum of a
