Vislink InCam-HS, Руководство пользователя

Страница: 9 / 43

Template Operators Manual
General Information
Issue No: 1
Page: 9
Ref:INHS-ASUM-700X
Copyright © 2020 IMT and Vislink are 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.