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e-CFR data is current as of August 12, 2020

Title 47Chapter ISubchapter DPart 95Subpart I → §95.2569


Title 47: Telecommunication
PART 95—PERSONAL RADIO SERVICES
Subpart I—Medical Device Radio Communications Service


§95.2569   MedRadio field strength measurements.

Compliance 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 mW115.157.55
25 μW18.29.1
250 nW1.80.9
100 nW1.20.6

(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 SAR measurement techniques dielectric parameters for the tissue-equivalent material can be found in the Office of Engineering and Technology (OET) Laboratory Division Knowledge Database (KDB).

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