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.

David wrote:

We were talking about DXing, not program listening.



I use sync for DX all the time - it often helps weak signal copy.

--
Brian Denley
http://home.comcast.net/~b.denley/index.html

In article ,
"Brian Denley" wrote:

David wrote:

We were talking about DXing, not program listening.



I use sync for DX all the time - it often helps weak signal copy.

People that do not have a receiver with a properly operating sync
detector do not understand how it improves reception.

These poor souls don't understand what they are missing.

--
Telamon
Ventura, California

Telamon wrote:
In article ,
"Brian Denley" wrote:

David wrote:

We were talking about DXing, not program listening.



I use sync for DX all the time - it often helps weak signal copy.

People that do not have a receiver with a properly operating sync
detector do not understand how it improves reception.

These poor souls don't understand what they are missing.

--
Telamon
Ventura, California
----------------------------------
You can say that again.

Since I built an outboard synch detector with the AD607 I have been
amazed
each and every time I receive a signal with fading. The difference
between
a synch detector and a standard diode detector is HUGE. Even the simple

improved AM
detectorat:http://www.amwindow.org/tech/htm/alowdisdet.htm
will offer significant improvements over most stock detectors.

The addition of an AD607 to my R2000s and my R390 has given me what
amounts
to new radios.

I have listened to SW since 1962 and I still can't get use to lack of
"flanging"
distortion on DX stations.
I almost miss it.
Almost.

I would love to have the Kiwa MAP and the Sherwood SE-3 outboard
detectors
to compare to my simple efforts.

Terry