Sec. 23.27  Experimental research.

    The licensee of a station may be authorized to use a transmitter 
which is licensed for fixed public or fixed public press service for 
experimental research in accordance with the rules and regulations 
governing the experimental service upon the condition that no 
interference will be caused to the public service. Experimental 
(Research) and Experimental (Developmental) Stations authorized to 
operate as point-to-point telegraph or telephone stations shall comply 
with the rules governing fixed public radio services in addition to the 
rules and regulations governing experimental radio services.