At Cumiana Italy 44.96N,7.42E run by Renato Romero IK1QFK:

Examining 9177Hz S/N and phase in 1 hour steps (278uHz)

 20:00   2.9dB
 20:30   3.2dB
 transmission started around 21:20
 21:30   6.2dB  -102.3
 22:00   1.8dB
 22:30   6.1dB  -159.4
 23:00   5.3dB   155.1
 23:30   4.1dB   172.9
 00:00   6.4dB   151.8
 00:30   6.4dB  -173.8
 01:00   4.4dB  -174.5
 01:30   6.2dB  -174.0
 02:00   8.9dB  -165.6
 02:30   8.1dB  -161.3
 03:00   6.8dB   151.3
 03:30   9.8dB  -178.6
 transmission ended around 04:30
 05:00   -1.2dB
 06:00   -2.6dB

Undoubtedly a signal there.  The steady phase tells us it is a
properly disciplined source, a spurious signal from an ordinary
xtal source would show lots of drift.  A mains harmonic would
be invisible at this bandwidth (it would just add to background
noise as it drifted by).

So, is it W4DEX?  A repeat test with a small frequency shift
would provide confirmation.   S/N is about right given the
extra 1Mm beyond Todmorden.  Frequency is exact which is
improbable otherwise.  The signal vanishes after Dex switches
off. Signal not present before 21:30, therefore not a harmonic
of Renato's GPS timing system.

S/N is 13.7dB in this 4 hour spectrum:

 http://abelian.org/vlf/tmp/141214f.gif

It is the strongest signal in 23000 neighbouring bins.

With the above, and this one by DL4YHF from the 2nd,

 http://abelian.org/vlf/tmp/141202j.gif

we have two good candidate detections of W4DEX in Europe, awaiting
confirmation.

See Renato's website http://www.vlf.it/ for lots of articles
about VLF/ELF reception techniques.
--
Paul Nicholson
--