Philips AS660C/41 - Page 4

2-2
MEASUREMENT SETUP
Tuner FM
Bandpass
250H2z-15kHz,
LF
Voltmeter
RF
Generator
e.g.,7122
707
48001
e.g,
PM2534
ae
S/N and distortion meter
le.g. Sound Technology ST1700B
C—-Q
fe} ie)
Use
a
bandpass
filter
to
eliminate
hum
(50Hz,
100Hz)
and
disturbance
from
the
pilottone
(19kHz,
38kHz).
Tuner AM (MW,LW)
Bandpass
250H2-15kHz
LF
Voltmeter
e.g.,7122
707
48001
e.g,
P2534
a ee heme
RF Generator
IS/N and distortion meter
le.g. Sound Technology ST1700B
Frame aerial Ca
ie}
e.g. 7122 707 89001
To
avoid
atmospheric
interference
all
AM-measurements
have
to
be
carried
out
in
a
Faraday’s
cage.
Use.a
bandpass
filter
(or
at
least
a
high
pass
filter
with.250Hz)
to
eliminate
hum
(50Hz,
100H2z).
cD RECORDER
Use
Audio
Signal
Disc
SBC429_
4822
397
30184
Use
Universal
Test
Cassette
CrO2
SBC419
4822
397
30069
(replaces
test
disc
3)
or
Universal
Test
Cassette
Fe
SBC420
4822
397
30071
DUT
aL LF Generator
i
H
i
'
SIN and distortion meter i
@.9. Sound Technology ST17008 '
|
|
i
i
LEVEL METER
2.9. Sennheiser UPMS50
with FF-fiter
CS 52 128
‘S/N and distortion meter
‘e.g. Sound Technology $T1700B
LEVEL METER
e.g. Sennheiser UPM550
with FF-fiter