AUDIO
WATTS
AND SPEAKER SUB
CI
RF
TUNIR
...
/cg
nnn:Jnn
UUUL.UU
a_NCO
__
..
,."
co
".",,,
••
0 0 0 0
0
I
I P
II
...
lS
DIOITAL AfADOUT
.UICTOR
•
0
0
0
·:Ot
....
"
I
II
I
S'EAKER
lUll
0
0
0
"
.....
~."
Moon
DIGITAL
RUDOUT
INPUT
SIGNALI
CIU
.........
•
•
,
rn
I
NOTE: F
..
_
..
id1
....
moI_
ONL
....
SooZbbol
__
INTERNAL
LOADS
Fig.
12-{:o71trol
Setup
for meawring Audio Power.
The internal SPEAKER SUB providM a
ma\.chE'd
and
calibrated load for audio power
measurements and
eliminates unwanted
audio noise during routine test.-
ing.
The
SPEAKER SUB used in conjunction with
the
AUDIO WATTS function
of
the
DIGITAL
READOUT provides
a convenient
method
of
<teter.
mining
r~iver
outpu~
power and reoeiver sensitivity.
To
use
~he
AUDiO WATI'S and SPEAKER SUB:
1.
Connect
the
speaker
outpu~
to
the
SPBAKER
SUB
input
jack using one
of
thc
supplied audio
cables. Sinoe
most
reoeivers have a miniature
phone
jack for
the
external speaker
output,
one
of
the
audio cables is supplied with a miniature
phone
plug. The
other
cable provides alligator
connectors for direct
ronnection
to
a speaker
or
internal connection.
2. Select a rated speaker load using
the
SPEAKER
SUB
swi\.ch.
a.
The internal
10
Watt load is used to provide
4, 8,
or
16
Ohm
tennination. When the
18
internal SPEAKER SUB is used,
the
AUDIO
WArt'S
function reads the
output
power
directly.
b.
If
an
external speaker or load
if
used, select
the
SPEAKER position on the SPEAKER
SUlI
swikh.
In
this position,
the
AUDIO
WArrs
fundion
will read directly
if
an
8
Ohm load is used.
If
a 4 Ohm load
i.
used.
the
reading
of
the
AUDIO WATIS function must
be doubled.
If
a
16
Ohm
load
is
used.
the
reading
mus~
b/!
halved for the
ac~ual
audio
power.
3.
Set
the
DIGITAL READOUT SELECTOR
to
the AUOiO
WATIS
position. The DIGITAL
READOUT
will now read
the
audio
output
power
of
the
amplifier section
in
RMS
Watts.
NOTE: For specific appliClltionr
of
lhe
A
UDIO
WATTS funclion,
.ee
the AppliCll-
tions
Section.
To Next Page
Loading...
Need help?
General
