On Sep 5, 12:35 am, "David Eduardo" wrote:
"Telamon" wrote in message

...



So try again marketing hack. Explain the terms you use to express what
it takes for good reception.

"Good reception" is a perception of the listener, not a technical term.
However, based on an enormous amount of data over many many years it can be
seen that outside the 10 mv/m contours of an AM or outside the 64 dBu
contours of an FM, listeners are not interested in tuning in to any
station... there is very close to no reported listening, in fact.

A good example, which obviates "well, at the fringe of a metro, there are
less people to listen" is to take stations that do not fully cover the most
densely populated parts of a metro. On FM, we have looked at over 30 survey
periods in LA with a total sample of over 7000 persons per survey and
plotted the returns for KRCD and KRCV, which are class A FMs. There is
nearly no listening at home or at work outside the 64 dBu contours during
the last 8 years, despite the stations frequently being in the top 10
(simulcast) in LA... all the listening is in a very small area.

Years ago, we looked at the same thing for AMs in general, and found that
the 10 mv/m was the barrier to sustained listening, and, of recent, perhaps
the 15 mv/m is the limit where listeners consider a station listenable.

People listen if the signal is strong, easy to tune, and free of nose,
fading, etc. It's totally subjective, but can be easily quantified.

How can you expect us to follow your posts when we're running low on
colloidal silver and the amazing HGH.