On Wed, 21 Feb 2007 23:25:31 -0500, Jim Shaffer
wrote in :

On Thu, 22 Feb 2007 03:09:28 GMT, Larry Dighera
wrote:
Is it just me, or does anyone else find a virtually 24/7 repetitive
pinging tone spread entirely over the 100 kHz from 13500 to 13610 kHz?

I'm not hearing it at 11 PM local time in central Pennsylvania.

It's not being generated in the receiver, as it is received in other
radios also. It's probably a local transmitter, but I'm surprised by
wide the bandwidth it occupies.

On the other hand, I've been having something trashing the lower half
of the longwave band lately. It turns on and off cleanly at intervals
I haven't had time to determine yet. It's probably local, but I have
no idea what it is. It just started a week ago or so.


I haven't heard that, but there is a tone that descends in audio
frequency steps that can be heard faintly under nearly all the
stations on entire SW frequency band. I need to check and see if that
is audible on another receiver to determine if that signal is external
or internal.