Re: LF: RE: Larry's signals last night 22/23 Jan

["Mike Dennison" <mike.dennison@rsgb.org.uk>]

G4JNT wrote:
> I agree with the best times, certainly after 0700z signals rise and
> noise levels fall.  In fact, most mornings I see a quite abrupt drop
> in noise level a bit before 0700, well before streetlights go off. 
> Haven't been able to identify the source of this noise change so far. 
>  Also short lived periods during the night.
My experience is that SMPSUs are noisier when the equipment is in 
'standby' (can any of the clever chaps here explain?) so the 
decrease at 0700 could be people switching on TVs, viedo 
recorders etc.

Mike, G3XDV (IO91VT)
http://www.lf.thersgb.net