On Sun, 05 Feb 2006 02:52:46 GMT, Telamon
wrote:

In article ,
"Frank Dresser" wrote:


"Doug Smith W9WI" wrote in message
...

[snip]


That said, I think IBOC is going to fail of its own volition. On
AM, it'll never sell to the vast majority of stations unless it can
be left on all night. But if it *is* left on all night, the
massive interference will kill the AM service altogether.

Nighttime IBOC might not kill AM radio, but it sure will make most
fringe reception impossible. I've recently spent some time in
California and the nighttime jumble of ground wave, skywave and
adjacents is even worse than what I'm used to here in the Midwest. I
can imagine the damage IBOC will cause.

Snip

I grew up in western New York and don't recall AMBCB stations having
the amount of selective fading as they do here in southern california.
Night time AM broadcast band here in southern California is terrible
most nights with selective fading where the station can be completely
unintelligible for up to a minute or two even with continuously strong
signal levels. Back east the AMBCB or short wave stations would just
have the "normal" signal strength fading where the signal strength
would drop so it could not be heard momentarily. I have as a
consequence found sync detection indispensable for night time AMBCB and
the majority of short wave reception is much improved with it. Recall
that I am a program listener so I spend hours listening to a broadcast
and don't want to miss parts of it.

I'm 25 miles North of Hollywood. KNX comes in OK at night. The rest
of my listening is S. F., Reno and Las Vegas. I can get KOMO
(Seattle) better than 90% of L.A. at night.