In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
...
In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
.
..
In article ,
"David Eduardo" wrote:

"IBOCcrock" wrote in message
oups.com...

The digital signals are only 1% of the analog - IBOC's
coverage isn't even 50% that of analogs !


Digital has totally different properties than analog. I have
seen plenty of data showing the HD signal, on a 3rd generation
receiver, is robust beyond the "usable" signal range of analog
AM or FM, which is the 10 mv/m AM curve and the 64 dbu FM
contour.

Gee, to bad you don't understand what that means.

I understand perfectly. I did one of the first studies of
listenership vs. signal strength over a decade ago.

I'm pretty sure reading your posts you have no understanding volts
per meter means. I don't think you know what dBu is either.


As stated previously, I actually built the first FM station in
Ecuador from scratch, including transmitter, studio gear and antenna.
I certainly know what the terms of field strength mean. I think
anyone who can build an FM exciter from scratch probably can
understand voltages pretty well.

I have also lugged field strength meters around various FCC
jurisdictions while working on directional antenna patterns ranging
from WEEL to WQII to KTNQ.

I didn't ask you about your fake imagined history that you shoe horn in
at every opportunity.

The minimum contour for FM stations to get significant listening is
the 64 dbu, roughly 1.5 mv/m. For AM in metros, it is about 10 mv/m.
Both AM and FM are measurements of the strength of the EMF from a
transmitter at some point of distance from it dBu used to be called
dBv but got confused with dBV, and was changed. It's a decibel
measurement of voltage.... as my equivalency shows.

dBuV is not the same thing as dBV. Care to try again.

While you are at it explain how 1.5 mV/m equates to either 64dBuV or
64dBV.

You mentioned these voltage numbers are in decibels so does that
mean a change from 32 to 64 is twice as much?

And just what does 1.5mV/m mean anyway to a person reading this post?

The whole point here is that the average listener... about 96% to 97%
of them, in fact, will not listen to a signal below a certain level
and all but three to four percent of stationary AM and FM listening
in rated metros comes from areas within the 10 vv/m and 64 dbu
contours of AM and FM stations.

My radio needs 10V/m to receive a station decently? My God no wonder you
didn't believe my posts on the signal strength of local stations. I'm
glad we finally figured that out.

--
Telamon
Ventura, California