The Maximum Permissible Exposure limits are for spatially averaged exposure, which means the field strength is evaluated based on the average exposure over the height of a person. From a safe SAR, the Standards and regulations set MPEs that vary with frequency. (See Table 1.) However, several non-government MPE: Maximum Permissible Exposure. Time averaging over 6 minutes for Occupation/Controlled exposure below 15 GHz is specifically called out. These MPEs are the same outside of the retinal hazard region from 400-1400nm. Maximum Permissible Exposure (MPE) The regulations have specific MPE requirements for radiated electric fields, magnetic fields and power density. •Maximum permissible Exposure (MPE) according to field strength and power density limits based on whole- body SAR averaging concepts are used for evaluating the exposure conditions of fixed and mobile exposure conditions. Regulations & Guidelines FCC –Maximum Permissible Exposure (MPE) Limits 21 Two tiers: 1. 2 The new FCC Form 605 requires that all applicants now sign an RF Safety Certification. General Population Exposure: Exposure limited to the general public. Human-body resonances fall in the frequency range from 30 to 300 … The limit for Maximum Permissible Exposure (MPE), specified in FCC §1.1310, is listed in Table 1-1. The purpose of this code is to specify maximum levels of human exposure to RF fields at frequencies between 3 kHz and 300 GHz, to prevent adverse human health effects in both controlled and uncontrolled environments. Table 1-1. FCC MPE Limits. health) evaluation for RF exposure prior to equipment authorization or use by the FCC. The limit for Maximum Permissible Exposure (MPE), specified in FCC §1.1310, is listed in . Petition for Clarification concerning application of the Commission’s rules governing radio frequency (RF) exposure limits and policies to Part 97 Amateur Radio licensees.1 This Petition addresses RF evaluations for fixed amateur stations in the 2200 meter (135.7-137.8 kHz) band and, more generally, for mobile and portable transmitters.

They became fully effective on September 1, 2000. Raytheon’s RF safety group is involved in all testing that requires free space radiation to ensure that no personnel are subjected to RF power density levels exceeding the Maximum Permissible Exposure (MPE) limits of the Part 1.1310 of the FCC Rules and the guidelines in FCC’s OET Bulletin Number 65. According to FCC §1.1310 and RSS-102: the criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in §1.1307(b). According to FCC §1.1310: the criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in §1.1307(b).

The certification that applicants must now sign reads: "I have READ and WILL COMPLY with Section 97.13(c) of the Commission's Rules regarding RADIO FREQUENCY (RF) RADIATION …

General population/uncontrolled: The public Individuals exposed as a consequence of their employment, but who may not have been made fully aware of the potential for exposure or cannot exercise control over their exposure. Maximum Permissible Exposure (MPE) values are shown in Figure 1 for an example exposure of 1000s, which could represent a prolonged exposure to diffuse radiation. The regulations limit our signal strength in areas where it affects people.

It is a two-tier standard with frequency-dependent exposure limits, referred to as Maximum Permissible Exposure (MPE) limits. This is a measure of the power density—adjusted for duty cycle—that exists at a specified distance in the region around a transmit antenna. For purposes of these requirements a portable device is defined as a transmitting device designed to be used so that the radiating structure(s) of the device is/are within 20

The regulations cover RF exposure, not RF emission. The MPE is shown to drop by a factor of 300 in the UV at about 300nm. At the present time there is no federally-mandated radio frequency (RF) exposure standard. This is important because the RF field levels vary dramatically as a function of height above ground.