Sec.  101.149   Special requirements for operation in the band 38,600–40,000 MHz

   Assigned frequency channels in the band 38,600–40,000 MHz may be subdivided
   and used anywhere in the authorized service area, subject to the following
   terms and conditions:

   (a) No interference may be caused to a previously existing station operating
   in another authorized service area;

   (b) Each operating station must have posted a copy of the service area
   authorization; and

   (c) The antenna structure height employed at any location may not exceed the
   criteria  set forth in  Sec. 17.7 of this chapter unless, in each instance,
   authorization for use of a specific maximum antenna structure for each
   location  has  been obtained from the FAA prior to the erection of the
   antenna.