This plays into the relevance of LF broadcast antenna
directionality, a la Saarlouis-to-ZL, long-or-short path.
Playing with a new untuned loop (late) last night it was quite
a 'good' night, in that Allouis (162) was louder than normal,
the audio being 'armchair' in normal AM bandwidth. True
with Junglinster (234) too; quite noticable QSB on both,
though. The other usual suspect, Saarlouis (183) was
notable by it's weakness. Now, this was odd in and of itself;
they're usually all there. Droitwich (198) wafted up and down
but never amounted to much (on a really, really good night it's
like being at home in Henley again).
The big surprises though were Atlantic 252, normally only
barely detectable, fading up a few times for short durations
to perfectly audible in the same league as Allouis, some 10-
15 min. at a time. This station is beamed east-ish to
England, away from here, so the ERP this way is much less
than the nominal 500kW. On a second receiver, at the same
time as one of these lifts, Droitwich was still a mere mumble.
In lifts definitely not correlated with those for 252, a borderline
audible station (like 198) on 171kHz came up and down;
now this is a first here - presumably Nador, Morocco.
The rapidity, selectiveness and extremes of the QSB were
the most dramatic ever noted; 252 was a stunner. (Shame
about the programming, though it was 5am there. . .)