Read Harman Kardon AVR 147 (serv.man3) EMC - CB Certificate online
Reference No. : 54120707A Page 8
◀ Anam EMC Test Laboratory ▶
6. DISTURBANCE RADIATION IN THE FREQUENCY RANGE 30MHz
TO 1,000MHz
6.1. Operating environment
Temperature
: 30℃
Relative humidity : 50%
6.2. Test set-up and procedure
The measurement was performed on an open area test site with a reference
ground plane and at a distance of 3m. The height of the measuring antenna was
varied between 1 to 4m and the table was rotated a full revolution in order to
obtain maximum value of the electric field intensity. The measurement was
made in both the vertical and horizontal polarization, and the maximum value is
presented in the report.
The measurement was performed with a quasi-peak detector.
Disturbance radiation due to the fundamental and harmonic frequencies of the
local oscillator and the other source were measured on a selected number of FM
sound broadcast channels. About the Disturbance radiation value from the other
source, the sixteen maximum values were recorded.
The test was measured with the main unit and the remote control unit.
obtain maximum value of the electric field intensity. The measurement was
made in both the vertical and horizontal polarization, and the maximum value is
presented in the report.
The measurement was performed with a quasi-peak detector.
Disturbance radiation due to the fundamental and harmonic frequencies of the
local oscillator and the other source were measured on a selected number of FM
sound broadcast channels. About the Disturbance radiation value from the other
source, the sixteen maximum values were recorded.
The test was measured with the main unit and the remote control unit.
6.3. Measurement uncertainty
Radiated disturbance electric field intensity, 30 ~ 300 ㎒: ±2.0 ㏈
Radiated disturbance electric field intensity, 300 ~ 1,000 ㎒: ±2.0 ㏈
The Measurement uncertainty describes the overall uncertainty of the given
measured value during operation of the EUT in the above-mentioned way.
measured value during operation of the EUT in the above-mentioned way.
6.4. Test instrumentation
Equipment
Manufacturer
Type No.
Serial No.
Test site
Open area test site
-
Measurement
Receiver
R & S
ESVP
861743/024
R & S
ESCI
100348
Signal Generator
Anritsu MG3632A
MT79870
R. C. Oscillator
Kenwood
AG-203A
3090241
Bi-conical Ant.
Schwarzbeck
VHA9103
9103 1135
Log-periodic Ant.
Schwarzbeck
UHALP9108-A
91098(0793)
Ant. Master
EMCO
1051-12
90121554
Turn table
EMCO
1080-1.211
90121504
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