Guide to EU standard 55013 (CISPR13) As/NZ standard 1053

Laplace Standards

EU standard 55013 (CISPR13)
As/NZ standard 1053

Limits and methods of measurement of radio disturbance characteristics of broadcast receivers and associated equipment.

This standard specifies limits and methods of measurement of electromagnetic disturbance caused by sound broadcast receivers, television receivers and associated equipment. It also covers cable and satellite receiving equipment.

Associated equipment is either intended to be connected directly to sound or TV receivers, or to generate or reproduce audio or visual information. (E.g. Audio amplifiers, active loudspeaker units, record players, CD players, magnetic recording and playback systems and electronic organs).
Information technology equipment is excluded even if it is intended to be connected to a TV broadcast receiver.

Clause 3.2: Mains terminal disturbance voltage: The RF conducted back down the mains lead is measured preferably with a LISN (Line Impedance Stabilisation Network), or alternatively with a voltage probe if a LISN is not suitable, and from other terminals with a voltage probe. Frequency range 150KHz to 30MHz.
Clause 3.3: Antenna terminal disturbance voltage: The antenna terminals on the EUT are connected to an auxiliary signal generator and an EMC analyser via a combining network and matching pads. The auxiliary signal generator feeds the EUT with a standard test signal at the receiver tuning frequency during the test. Frequency range 30MHz to 1000MHz.
Clause 4.3: Disturbance radiation (commonly called cabinet radiation): Requires the use of a broadband antenna to measure the level of RF energy radiated from the product into ‘space’. Ideally an Open Area Test Site (OATS) or equivalent should be used. Uncalibrated test sites will require the use of an ERS to quantify test site distortion. Frequency range 80MHz to 1000MHz.
Clause 3.5: Disturbance power of associated equipment (excluding video recorders). Requires the use of an RF Absorbing clamp to measure the level of RF energy transmitted from the product back down the mains lead or other connected lead. Does NOT require any other antenna or the use of open area test sites. Frequency range 30MHz to 1000MHz.

The signals from the antenna, LISN or absorbing clamp are all analysed in a CISPR16 EMC analyser.

Equipment common to all tests: SA1000 EMC analyser with pre-amplifier and near field probe set ....RFG- Equipment specific to each test:

Clause 3.2	LISN (line impedance stabilisation network)	add -4
	Optional: Preselector RF910	add -R
Clause 3.3	Requires combining network and matching pads to suit EUT.
Clause 3.4	RF200 broadband antenna	add -B
	Emissions reference source (ERS)	add -C
Clause 3.5	RF400 absorbing clamp	add -A

For example, a complete basic kit to cover clauses 3.2 and 3.4 for cabinet radiation and conducted emissions would be RFG-4BC with optional -R

SA1000 EMC analyser
RF200 broadband antenna
RF400 RF absorbing clamp
ERS
LISN
Voltage probe (PLIP)
RF800 Band B filter

Help in the selection of the appropriate measurement techniques and automatic display of the relevant limit levels are standard features in the software provided with all Laplace EMC analysers.
Note The above is for guidance only. Refer to the published standard for definitive details, exclusions and exceptions and detailed test technique.


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