FCC Record, Volume 34, No. 14, Pages 11031 to 11845, November 25 - December 6, 2019 Page: 11,763
iv, 11031-11845p. ; 28 cm.View a full description of this book.
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Continuous exposure refers to the maximum time-averaged exposure at a given location for an RF source
and assumes that exposure may take place indefinitely. The exposure limits in Section 1.1310 of this chapter
are used to establish the spatial regions where mitigation measures are necessary assuming continuous
exposure as prescribed in Section 1.1307(b)(4) of this chapter.
Effective Radiated Power (ERP) is the product of the maximum antenna gain which is the largest far-
field power gain relative to a dipole in any direction for each transverse polarization component, and the
maximum delivered time-averaged power which is the largest net power delivered or supplied to an
antenna as averaged over a time-averaging period; ERP is summed over two polarizations when present;
Exemption for (an) RF source(s) is solely from the obligation to perform a routine environmental
evaluation to demonstrate compliance with the RF exposure limits in Section 1.1310 of this chapter; it is
not exemption from the equipment authorization procedures described in Part 2 of this chapter, not
exemption from general obligations of compliance with the RF exposure limits in Section 1.1310 of this
chapter, and not exemption from determination of whether there is no significant effect on the quality of
the human environment under Section 1.1306 of this chapter.
Fixed RF source is one that is physically secured at one location, even temporarily, and is not able to
be easily moved to another location while radiating;
Mobile device is as defined in Section 2.1091(b) of this chapter;
Plane-wave equivalent power density is the square of the root-mean-square (rms) electric field
strength divided by the impedance of free space (377 ohms).
Portable device is as defined in Section 2.1093(b) of this chapter;
Positive access control is mitigation by proactive preclusion of unauthorized access to the region
surrounding an RF source where the continuous exposure limit for the general population is exceeded.
Examples of such controls include locked doors, ladder cages, or effective fences, as well as enforced
prohibition of public access to external surfaces of buildings. However, it does not include natural
barriers or other access restrictions that did not require any action on the part of the licensee or property
management.
Radiating structure is an unshielded RF current-carrying conductor that generates an RF reactive near
electric or magnetic field and/or radiates an RF electromagnetic wave. It is the component of an RF
source that transmits, generates, or reradiates an RF fields, such as an antenna, aperture, coil, or plate.
RF source is Commission-regulated equipment that transmits or generates RF fields or waves,
whether intentionally or unintentionally, via one or more radiating structure(s). Multiple RF sources
may exist in a single device.
Separation distance (variable R in Table 1) is the minimum distance in any direction from any part of
a radiating structure and any part of the body of a nearby person;
Source-based time averaging is an average of instantaneous exposure over a time-averaging period
that is based on an inherent property or duty-cycle of a device to ensure compliance with the continuous
exposure limits;
Time-averaging period is a time period not to exceed 30 minutes for fixed RF sources or a time
period inherent from device transmission characteristics not to exceed 30 minutes for mobile and portable
RF sources;11763
Federal Communication Cmision
FCC 19-126
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United States. Federal Communications Commission. FCC Record, Volume 34, No. 14, Pages 11031 to 11845, November 25 - December 6, 2019, book, December 2019; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1637223/m1/741/: accessed July 18, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.