On 3/25/2010 7:44 PM, Antonio Vernucci wrote:
snip
The consequence was that, at 5 kHz selectivity, I experienced the very
strange effect to hear the same AM station at two distinct frequencies,
a few kHz apart from each other.

But then, moving the notch knob, such "doubling" effect disappeared and
I could hear the AM station just at a single frequency, though with a
much higher bandwidth.
In conclusion, I had to put the notch knob at the other extreme with
respect to the OFF position, and the problem seems to no longer exist.


Ah, very good info, thanks, Tony.

I will try shifting the SX-115 notch to the other extreme
when in a.m.

73,
Ed Knobloch