On Sat, 3 Dec 2005 22:03:59 -0500, "Brian Denley"
wrote:

David wrote:
On Tue, 29 Nov 2005 23:08:57 -0500, "Brian Denley"
wrote:

David wrote:
http://www.sherweng.com/table.html

The 390s have a great noise floor when properly tuned up. Other
than that, a modern PLL receiver has many more features.
The question was about AM mode. There's no bells and whistles on an
R8B that make it better than an R-390A for AM radio.

David:
Don't get me wrong - I love that R-390. But you're wrong about the
bells a whsitles. A sync detector is a wonderful AM tool. A
sideband selectable sync detector is even better: reduced fading
distortion AND less adjacent channel interference.
Am old-style Collins Mechanical Filter (with the trimmer mod) is just
as advantageous. You can work the passband against the steep skirt.

And how does an 'old style' Collins mechanical filter reduce distortion
during deep fades? That's what a sync detector does. No filter can do
that.
We were talking about DXing, not program listening.