518%LEEQEEEEE‘BE
In
positions
”MPX l”
and
”MPX
2"
of
the
indication
selector
switch
1,
it
is
possible
to
observe
the
output
level
on
the
upper
scale
of
meter
Q.
The
measure—
ment
range
can
be
extended
by
+10
dB
with
slide
switch
g.
The
meter
indication
represents
the
peak
value
of
the
complete
signal
(MPX
+
pilot
+
SCA
+
additional
signals).
2.4.}
M
OutEut
Connections
L
E
R
(mono
or
centre
signal)
is
floating
and
available
at
The
signal
M
=
the
parallel—connected
outputs
Eujo
(29)
and
Sthl.8ab-c
(£2).
The
nominal
output
level
is
fixed
to
+6
dEm;
there
is
no
preemphasis.
Signal
indication
In
position
"L
+
R"
of
indication
selector
Z,
the
level
may
be
observed
on
the
upper
scale
of
meter
é.
Note
for
measurements
with
discrete
frequencies
The
output
voltage
is
obtained
by
adding
the
L
and
R
signals
after
the
pre-
emphasis
sections.
This
causes
an
increase
of
13.6
dB
at
15
kHz
when
the
preemphasis
is
switched
to
50
us
and
of
about
17
dB
with
75
us.
A
deemphasis
section
compensates
for
this
increase
so
that
a
flat
frequency
response
is
obtained.
The
overload
limits,
such
as
mentioned
in
section
2.4.1,
have
to
be
taken
into
account.
2.4.4
Stereo/Mono
Switchover
_____._______L_—_—-——————
For
monaural
transmissions,
the
signal
on
the
left
or
right
ohanneL
depending
on
the
setting
of
link
BRIO},
can
be
directly
taken
to
the
MPX
outputs.
The
changeover
can
be
carried
out
either
on
the
front
panel
or
via
remote-control
lines.
All
switch
positions
are
stored
and
unaffected
by
AC
supply
failure.
For
pin
assignment
of
Sthl
see
Fig.
3.
R
38122
-
ll