Quantum Receiver User Manual
General Information
Issue No: A
Page: 11
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Copyright © 2021 Vislink is a Vislink Technologies Inc. companies
1.5.
Maximum RF Power Density Limits
The RF Radiation Power Density limit figure recommended by Vislink is based
upon guideline levels published in:
a.
IEEE standard C95.1 1999 - IEEE Standard for Safety Levels with respect to
Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300
GHz.
b.
Guidelines for Limiting Exposure to Time-varying Electric, Magnetic &
Electromagnetic Fields (up to 300 GHz) published in 1998 by the Secretariat of
the International Commission on Non-Ionising Radiation Protection (ICNIRP).
Both documents define guideline RF power density limits for "Controlled" and
"Uncontrolled" environments. An uncontrolled environment is defined as one
in which the person subjected to the RF radiation may be unaware of and has
no control over the radiation energy received. The uncontrolled environment
conditions can arise, even in the best regulated operations and for this reason
the limits defined for the uncontrolled environment have been assumed for the
Vislink recommended limit.
Documents a) and b) also show the RF power density guidelines to be
frequency dependent. Different power density / frequency characteristics are
presented in the two documents. To avoid complexity and to avoid areas of
uncertainty, Vislink recommends the use of a single power density limit across
the frequency range 100 kHz to 300 GHz. The 1w/m² power density limit we
recommend satisfies the most stringent of the guidelines published to date.
NOTE: The IICNIRP document is freely available for download from the
internet at www.icnirp.de/emfgdl (PDF file) the IEEE standard is
available on loan from Essex County Library on payment of a search
fee.
