Section 95.2569 - MedRadio field strength measurementsCompliance with MedRadio equivalent isotropic radiated power (M-EIRP) limits can be determined by measuring the radiated field strength from the transmitter type, in accordance with the rules in this section.
(a) Radiated field strength values corresponding to the M-EIRP limits in § 95.2567 are given in the table in this paragraph, for an open area test site, and for a test site equivalent to free space, such as a fully anechoic test chamber. Field strength is measured at a distance of 3 meters from the equipment under test. M-EIRP
limit | Open
area
(mV/m) | Free
space
(mV/m) |
| 1 mW | 115.1 | 57.55 |
| 25 [MICRO]W | 18.2 | 9.1 |
| 250 nW | 1.8 | 0.9 |
| 100 nW | 1.2 | 0.6 |
(b) Compliance with the maximum transmitter power requirements in § 95.2567 is based on measurements using a peak detector function and measured over an interval of time when transmission is continuous and at its maximum power level. In lieu of using a peak detector function, measurement procedures that have been found to be acceptable to the FCC in accordance with § 2.947 of this chapter may be used to demonstrate compliance.(c) For a MedRadio transmitter intended to be implanted in a human body, radiated emissions and M-EIRP measurements for transmissions by stations authorized under this section may be made in accordance with an FCC-approved human body simulator and test technique. Guidance regarding dielectric parameters for the tissue-equivalent material can be found in the Office of Engineering and Technology (OET) Laboratory Division Knowledge Database (KDB). 82 FR 41104 , Aug. 29, 2017, as amended at 86 FR 53566 , Sept. 28, 2021 82 FR 41104 , 9/28/2017; 86 FR 53566 , 10/28/2021