A.H. Systems AK-285R Shielding Effectiveness Antenna Kit
GENERAL INFORMATION
INTENDED PURPOSES
This equipment is intended for general laboratory use in a wide variety of industrial
and scientific applications, and designed to be used in the process of measuring
high levels of electromagnetic Radio Frequency (RF) energy. It is the responsibility
of the user to assure that the device is operated in a location which will measure
the radiated energy such that it will not cause injury and will not violate regulatory
levels of electromagnetic interference.
GENERAL DESCRIPTION
The A.H. Systems AK-285R and AK-285T antenna kits includes all of the required
antennas needed to perform shielding effectiveness. Each component has a
specific storage compartment in the carrying case therefore, loss and breakage
are virtually eliminated. Cables, a tripod with azimuth and elevation head, and a
tripod carrying case accompany each antenna kit. Each of the antennas, and
cables, are provided with calibrations when connected to a 50-ohm input receiver
or spectrum analyzer.
Each of the E-field antennas mounts directly to the tripod azimuth and elevation
head. The azimuth and elevation head allows the operator to vary the antenna
azimuth (direction) and tilt the antenna up and down. The antenna polarity can
also be rotated (horizontal or vertical).
Cables and an adapter are provided to connect each antenna and probe to either
a BNC or N type connector on the receiver.
To obtain the field strength of the signal being measured, the operator must add
the receiver reading in dBuV, the antenna factor in dB, and the cable attenuation in
dB. This yields the field strength in dBuV/m. Calibrations for the E-field antennas
are supplied at appropriate distances (1, 3, and 10 meter) to comply with various
specification requirements.
A.H. Systems inc. – August 2011
REV A
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