A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Bill Ritchie
Date: 2017 Apr 28, 13:59 -0700
This link gives some useful information. radioandtelly.co.uk/timelag.html I have also seen an (unverified) internet report of some analogue stations 'relaying' their digital signal, thus questioning the accuracy of some analogue signals too.