Specifications

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AS/CA S002:2010 COPYRIGHT

OCTOBER 2010

FIGURE 27

Test circuit for measurement of longitudinal power level

Note 1: If the equipment has separate protective and signal earth terminals

they are connected together.

Note 2: The two resistors R1 are to be matched to within 0.01%.

Note 3: The measuring instrument is of high impedance, and capable of

measuring over the frequency range 3.4 kHz to 30.175 MHz.

Note 4: The measuring instrument is calibrated in dBm as if it was measuring

across a resistive load.

Note 5: The adequacy of the balance is checked by repeating

measurements with appropriate connection reversal, or equipment

disconnection.

Note 6: The value of the resistors R1 and R2 are to be 70 Ω for CE signals with

fundamental frequency components in the 3.4 kHz to 30.175 MHz

range when the CE is not being tested with any associated

equipment.

Note 7: If required, blocking capacitors with a value of 4uF may be placed

in series with each R1 resistor during the idle, hold or ringing states.

Variations of this arrangement are permitted if necessary for correct

operation of the CE, but must be carefully considered to ensure

correct longitudinal power level measurements.

(Note 7)