Goto Section: 17.209 | 17.212 | Table of Contents

FCC 17.211
Revised as of July 19, 2007
Goto Year:2006 | 2008
Sec.  15.211   Tunnel radio systems.

   An  intentional radiator utilized as part of a tunnel radio system may
   operate on any frequency provided it meets all of the following conditions:

   (a)  Operation  of a tunnel radio system (intentional radiator and all
   connecting wires) shall be contained solely within a tunnel, mine or other
   structure  that provides attenuation to the radiated signal due to the
   presence of naturally surrounding earth and/or water.

   (b) Any intentional or unintentional radiator external to the tunnel, mine
   or other structure, as described in paragraph (a) of this section, shall be
   subject to the other applicable regulations contained within this part.

   (c)  The total electromagnetic field from a tunnel radio system on any
   frequency or frequencies appearing outside of the tunnel, mine or other
   structure described in paragraph (a) of this section, shall not exceed the
   limits shown in  Sec. 15.209 when measured at the specified distance from the
   surrounding structure, including openings. Particular attention shall be
   paid to the emissions from any opening in the structure to the outside
   environment. When measurements are made from the openings, the distances
   shown in  Sec. 15.209 refer to the distance from the plane of reference which
   fits the entire perimeter of each above ground opening.

   (d) The conducted limits in  Sec. 15.207 apply to the radiofrequency voltage on
   the public utility power lines outside of the tunnel.


Goto Section: 17.209 | 17.212

Goto Year: 2006 | 2008
CiteFind - See documents on FCC website that cite this rule

Want to support this service?
Thanks!

Report errors in this rule. Since these rules are converted to HTML by machine, it's possible errors have been made. Please help us improve these rules by clicking the Report FCC Rule Errors link to report an error.
hallikainen.com
Helping make public information public