Philips CED750/55 - Page 4

MEASUREMENT SETUP
Tuner FM
DUT
RF Generator
Bandpass
LF Voltmeter
e.g. PM5326
250Hz-15kHz
e.g. 7122 707 48001
e.g. PM2534
S/N and distortion meter
e.g. Sound Technology ST1700B
Ri=50Ω
Use a bandpass filter to eliminate hum(50Hz,100Hz) and disturbance from the pilottone(19kHz,38kHz).
Tuner AM (MW,LW)
DUT
RF Generator
Bandpass
LF Voltmeter
e.g. PM5326
250Hz-15kHz
e.g. 7122 707 48001
e.g. PM2534
S/N and distortion meter
e.g. Sound Technology ST1700B
Ri=50Ω
Frame aerial
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,100Hz ).
'
DUT
DUT
L
R
LF Generator
e.g. PM5110
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)
Cassette
Use Universal Tes t Cassette CrO2 SBC419 4822 397 30069
or Universal Tes t Cassette Fe SBC420 4822 397 30071
CD
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