[Comment on “Accurate clock for remote areas” by J. Bonanomi] For clock watchers



Your news item in Eos (63(4), January 26, 1982, p. 129) refers to an accurate clock for remote areas that utilizes Omega signals to synchronize clocks to 0.01 s.

A system utilizing GPS satellite signals is also currently available for synchronizing remote clocks to an accuracy of better than 100 ns! GPS is presently in its validation phase and can now provide worldwide time transfer capability. The very stable satellite atomic clocks are routinely monitored and correction parameters are broadcast as part of the GPS message.