Goto Section: 15.507 | 15.510 | Table of Contents

FCC 15.509
Revised as of October 1, 2008
Goto Year:2007 | 2009
  Sec.  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  Sec. 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
    Sec. 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, f[M], is above 960 MHz, there is a limit on the peak level
   of the emissions contained within a 50 MHz bandwidth centered on f[M]. 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  Sec. 15.521.

   [ 68 FR 19749 , Apr. 22, 2003]


Goto Section: 15.507 | 15.510

Goto Year: 2007 | 2009
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