I agree on the point of myself having any appreciable effect. I did receive
an e-mail response from Mr. Miller of the FCC this morning. He wants me to
send him some spectrographs of the stations in question. I am going to see
if I can take one of the 8560 spectrum analyzers home for a day or two. This
way, I can use the marker function and show the delta between the carrier
and the adjacent channel sideband power. The VSA would be even better,
because it could measure ACCP (adjacent channel coupled power).
I did get a response from one of the managers from WTMJ 620 this afternoon.
Nothing from WBBM yet, but I won't hold my breath on this one.
I do believe that if many people expressed their concern there would be a
very small chance that it would have some effect. Unfortunately, money makes
the world go around and if the radio stations think IBOC can increase their
revenue they will go for it.
I don't think it will succeed.................at least I hope not.

Pete

"Doug Smith W9WI" wrote in message
...
Pete KE9OA wrote:
Ann Gallagher

Charles Miller

These are two people in the FCC that you can contact about the
interference that IBOC transmissions are causing. Will it do any good to
complain? Who know? I took the gamble, and I also e-mailed the local
radio stations about this issue.

IMHO IBOC was not a technical decision. The Commission's technical staff
answers to the Commissioners, none of whom have a technical background. I
think the technical staff has been *ordered* to implement IBOC on both AM
and FM stations, and is doing the best they can to comprimise between the
technical consequences of doing this, and the employment consequences of
not doing it.

In the LPFM proceeding they saw exactly what happens when the technical
truth gets in the way of the will of lobbyists.

I don't think any complaint against IBOC will be listened to unless it's
accompanied by large campaign contributions. The chances of KE9OA
outbidding WOR are pretty much zero.

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.

On FM, I think it'll simply never sell. IBOC-FM will fade away, as the
digital transmitters suffer inevitable breakdowns & budget-conscious
managers decide not to spend money repairing transmitters nobody is
listening to.

On the receiver end, set prices will have to pretty much equal those of
existing analog sets if they're to compete with satellite. They have a
VERY long way to go to reach that point!
--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com

Ham stuff for sale:
http://www.w9wi.com/articles/4sale.htm