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Page 5 of 143

 
 
Test Number- 250-05 
 
 

 
 
See product technical file.

 

 
 

Page 6 of 143

 
Test Number- 250-05 
 
 
TEST PROCEDURES 
 
1.   TEST EQUIPMENT 

 

A. HP 8546A (9 kHz - 6.5 GHz) EMI Receiver w/ RF Filter Section, S/N 

3704A00323 / 3650A00360.  Calibration Date 1-5-2005, calibrated 
annually. 

 
B. Com-Power Biconilog Antenna, Model AC220, S/N 25509.   
   Calibration Date 7-11-2005, calibrated annually. 
 
C. EMCO LISN, Model EM 3825/2, S/N 9109-1860. 
   Calibration Date: 12-15-2004, calibrated annually. 
 
D. Fischer Custom Communications, Model F-201-23mm Absorbing Clamp, S/N  
   118. Calibration Date: 10-6-2004, calibrated annually. 

 
2. FREQUENCY RANGES TO BE SCANNED. 
 

 

A. 

Radiated Test from 30 MHz to 1.0 GHz. 

 
B. 

Conducted Test from 150 kHz to 30 MHz. 

 
C. 

Disturbance Power Test from 30 MHz to 300 MHz. 

 

 
 
3. TEST PROCEDURES. 
 
Radiated test procedure: 
 

 

The EUT, associated cables and peripheral devices are placed on the 

supporting table with any support equipment placed off the site.  The EUT is 
turned on and any necessary operating or test software installed and is 
allowed to warm up. The EUT is pre-scanned in our ferrite tile lined chamber 
where it is rotated 360 degrees and examined in both horizontal and vertical 
polarization, all emission frequencies are identified and recorded. The EUT is 
then moved to the OATS and the frequency band from 30 MHz to 1 GHz is scanned, 
all frequencies identified in the chamber are investigated. When a signal is 
found the emission is maximized by varying the bundle position of the 
connecting cables, the antenna height, the antenna polarization (vertical and 
horizontal) and the table orientation (360 degrees).   The maximum reading is 
recorded and the next signal is searched for. 

 

 
 

Page 7 of 143

 
Test Number- 250-05 
 

TEST PROCEDURES and EQUIPMENT 

 
 
3.   TEST PROCEDURES (cont.) 
 
 
Conducted test procedure: 
 

 

The power line of the EUT is connected to the LISN (Line Impedance 

Stabilization Network).  A measurement of the emissions are made from the 
power line for both phase A and phase B on the analyzer in the frequency range 
from 150 kHz to 30 MHz.  The maximum readings are recorded for each phase. 

 
 
Disturbance power test procedure: 
 

 

The EUT, associated cables and peripheral devices are placed on the 

supporting table with any support equipment placed off the site.  The EUT is 
turned on and any necessary operating or test software installed and is 
allowed to warm up.  A cable of 6 meters (or maximum length possible) is 
placed into the clamp.  The frequency band from 30 MHz to 300 MHz is scanned.  
The clamp is moved along the length of cable.  When a signal is found the 
emission is measured by moving the clamp to the area of the cable where the 
maximum signal can be obtained.  The maximum reading is recorded and the next 
signal is searched for.  The test is repeated on all interconnecting cables. 
 
 
 

 
 
 
 

All measurements are made according to the procedures defined  in:  

"EN55013: 2001 Sound and television broadcast receivers and associated 
equipment- Radio disturbance characteristics- Limits and methods of 
measurement." Also, the procedures defined in "EN55022: 1994 Limits and 
methods of measurement of radio disturbance characteristics of information 
technology equipment" & "ACA AS/NZ 3548:1995 Limits and methods of measurement 
of radio disturbance characteristics of information technology equipment" are 
taken into account during Radiated and Conducted measurements for the purpose 
of including FCC and Canadian Requirements. 

 

 

 
 

Page 8 of 143

 
Test Number- 250-05 
 

EN 55013 TEST LIMITS 

 
 

 
This limit takes into consideration lowest limits in EN55013, EN55022 
Class B and FCC Part 15 Class B. 
 

Frequency 

MHz 

Distance 

meters 

Quasi-Peak Limit 

dB

µV/m 

 

30 - 88 

 

3 

 

39.5 

 

88 - 300 

 

3 

 

40 

 

300 - 960 

 

3 

 

46 

 

960 - 1000 

 

3 

 

47 

 

Above 1000 

 

3 

 

54 

 
 

Note; this limit is equivalent to the CISPR22 and new FCC P15 Class B limit. 

dB(

µ

V)

MHz

Television and sound receivers
and associated equipment

0,15 to 0,5

0,5 to 5

5 to 30

66 to 56 

a

56

60

56 to 46 

a

46

50

a 

Decreasing linearly with the logarithm of the frequency.

 

NOTE 1   If the limits for the average detector are met when using the quasi-peak detector, then the limits for the
measurements with the average detector are considered to be met.

NOTE 2   The higher value measured with and without the outer conductor screen of the antenna terminal
connected to earth is considered.

NOTE 3   Television receivers with teletext facilities should be tested in teletext mode with teletext picture.