Goto Section: 15.507 | 15.510 | Table of Contents

FCC 15.509
Revised as of December 1, 2020
Goto Year:2020 | 2022
  §  15.509   Technical requirements for ground penetrating radars and wall
imaging systems.

   (a) The UWB bandwidth of an imaging system operating under the
   provisions of this section must be below 10.6 GHz.

   (b) Operation under the provisions of this section is limited to GPRs
   and wall imaging systems operated for purposes associated with law
   enforcement, fire fighting, emergency rescue, scientific research,
   commercial mining, or construction.

   (1) Parties operating this equipment must be eligible for licensing
   under the provisions of part 90 of this chapter.

   (2) The operation of imaging systems under this section requires
   coordination, as detailed in § 15.525.

   (c) A GPR that is designed to be operated while being hand held and a
   wall imaging system shall contain a manually operated switch that
   causes the transmitter to cease operation within 10 seconds of being
   released by the operator. In lieu of a switch located on the imaging
   system, it is permissible to operate an imaging system by remote
   control provided the imaging system ceases transmission within 10
   seconds of the remote switch being released by the operator.

   (d) The radiated emissions at or below 960 MHz from a device operating
   under the provisions of this section shall not exceed the emission
   levels in § 15.209. The radiated emissions above 960 MHz from a device
   operating under the provisions of this section shall not exceed the
   following average limits when measured using a resolution bandwidth of
   1 MHz:
   Frequency in MHz EIRP in dBm
   960-1610               -65.3
   1610-1990              -53.3
   1990-3100              -51.3
   3100-10600             -41.3
   Above 10600             -51.3

   (e) In addition to the radiated emission limits specified in the table
   in paragraph (d) of this section, UWB transmitters operating under the
   provisions of this section shall not exceed the following average
   limits when measured using a resolution bandwidth of no less than 1
   kHz:
   Frequency in MHz EIRP in dBm
   1164-1240              -75.3
   1559-1610               -75.3

   (f) For UWB devices where the frequency at which the highest radiated
   emission occurs, fM, is above 960 MHz, there is a limit on the peak
   level of the emissions contained within a 50 MHz bandwidth centered on
   fM. That limit is 0 dBm EIRP. It is acceptable to employ a different
   resolution bandwidth, and a correspondingly different peak emission
   limit, following the procedures described in § 15.521.

   [ 68 FR 19749 , Apr. 22, 2003]

   


Goto Section: 15.507 | 15.510

Goto Year: 2020 | 2022
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