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EMC Report No: 3109178NYM-005
Page 9
5.0 TEST PROCEDURES
5.1 Emissions Testing
5.1.1 Radiated and Conducted Emissions Testing
The sites used for CISPR testing are a three-meter indoor and 10 & 30 meter open site. The three meter site is a
Panashield fully anechoic chamber. The chamber has been tested to show conformance with the site attenuation
requirements of the CISPR standards.
Measurements for this unit was conducted in the 3 meter anechoic chamber.
Measurements are taken with Schaffner’s X-Wing BiLog antenna which has been correlated to dipoles from 30
MHz to 2000 MHz. The mast to support the antennas is capable of a 1 meter to 4 meter height range, which meets
CISPR requirements. The antenna mast is non-conductive and remote-controllable.
Since radiated emissions, and, to a lesser extent, conducted emissions, are a function of cable placement, the cable
placement is varied to encompass all configurations that an end user would encounter to determine the
configuration resulting in maximum emissions. At least one cable for each I/O port type is attached to the EUT. If
peripherals or modules are available, at least one of each available type is installed and noted in the report.
Generally, only one of each type is used, unless good engineering judgment dictates that the use of more will
affect emission levels. Excess cable lengths are arranged into a 30 x 40 cm bundle. Cables requiring non-standard
lead dress are recorded in the report.
For conducted emissions testing the equipment is moved to an insulated platform over the ground plane and the
EUT is powered from the LISN. Both sides of the AC line are measured and the results are compared to the
applicable limits. Measurements are taken using CISPR quasi-peak and average detectors when the peak reading
approaches or exceeds the average limit. Only quasi-peak readings are taken when the EUT’s emissions meet the
average limit as measured with the quasi-peak detector.
(6 pages)
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