Advent 300 User Manual

FM reception
and antennas
Muting
As you
tune to
FM broadcasts
with the
Muting
circuit
On, the
annoying rushing
sounds
between stations
are suppressed,
and listen-
able broadcasts
“pop”
into
range.
Be aware,
ON
however,
that rapid
rotation
of the
tuning
knob
may
cause you
to miss stations,
as
high
perform
ance
muting
circuits are
then
unable
to
act fast
enough
to
distinguish
them. Therefore,
you
should
tune
slowly while
searching
out
stations.
Because
of the Model
300’s
exceptional
sensi
tivity and
steep
“limiting”,
weak stations
don’t
sound weak
and noisy.
If
a station
is
received
at
all, it comes
in clearly,
with little
or
no back
ground
noise. However,
a
slight change
in
received
signal
strength
can
cause
a weak
sig
nal to cut
out intermittently,
and
a
very
weak
sig
nal
that may be
listenable
can be suppressed
entirely
by the muting
circuit. While
listening to
or searching
for these
stations
that may be
lis
tenable, switch
Muting
Off, and
experiment
with
antenna
orientation
to improve
signal strength.
Multipath
distortion
FM
broadcast signals
travel
a
line-of-sight
path
from the
transmitter,
and
a
variety
of factors
that are mostly
geo
graphical
can interfere
with
FM
reception. If
your receiver
is located
some
distance
from the
transmitter,
trees, hills,
and
buildings
can
all
weaken
the
signal. An
urban location
can
sometimes
result in
“multipath”
distortion
on
some
or all
broadcasts,
as
FM signals
are
reflected
off large buildings.
The
reflected sig
nals
are
received “out
of
step”
with the
primary
broadcast signal,
causing
audible
distortion
that is equivalent
to the
“ghosts” visible
in a TV
picture.
Antenna
orientation
Experimentation
with
orientation
of
the short-wire
whip antenna
pro
vided can
improve
reception
or allow
you to
receive additional
stations,
and
should
result
in
satisfactory
reception
of most
stations in
most
locations.
If you
are
in a very
difficult reception
area
you may
find
it necessary
to
regularly
change the
antenna’s
position
for
particular
stations. If antenna
orientation
does not
solve a
particular
distortion
problem,
switching a
stereo
broadcast
to
the Mono
mode
may
improve
its
reception.
Antenna
improvement
If consistently
bad
reception
calls for
antenna
improvement,
we
suggest the
following,
which
are listed
in
order
of increasing
complexity
and
or
expense:
OFF
MUTING

Advent 300 Specifications

General

Brand	Advent
Model	300
Category	Stereo Receiver
Language	English