.~ Single adjustable length electrically long linear antenna
DEFINITION
Classification: 343/723
(under subclass 700) Subject matter wherein the antenna is a single end fed elongated linear mass of appreciable electrical length, and is physically adjustable in its length, usually for tuning the antenna.
(1) Note. A lattice type tower may be classified here, if it is the electrical equivalent of a single end fed elongated linear mass, and the other limitations of the definition are met.
(2) Note. For classification herein the resonant length of the linear antenna or some indication of appreciable electrical length together with adjustability must be claimed, as for example "adjustable in length for tuning" (see subclasses 825+ where a particular wave length is claimed but the adjustable feature is not claimed). Subject matter involving adjustable length linear antennas which are not of appreciable wave length, is not classified herein. For example, adjustable length rod type antennas are classified in subclasses 900+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
745+, for antennas with a variable reactance separate and distinct from the antenna for tuning.
750, for antennas for appreciable electrical length with adjustable reactance for loading.
823, for balance doublet antennas with adjustable length. 825+, for fractional, multiple or full wave length linear type antennas.
874+, for mast or tower type antennas.
900+, for rod type antennas which may be adjustable in length.
