Abstract: In an antenna configuration (3) having a first antenna arm (4) and having a second antenna arm (5), the two longitudinal directions (10, 11) of the two antenna arms (4, 5) enclose an acute opening angle (?) with one another, wherein the acute opening angle (?) has a value of between 15° and 90° and preferably between 25° and 45°.

Abstract: In multi-directional antennas connected to a digital TV broadcast signal receiver, when a receiving channel is selected, if an antenna is set to the same direction as a previously stored direction, and signals cannot be received, the previously stored direction data is deleted, and if the best receiving direction is searched by the auto-scan, and a receivable direction does not match the previously stored receiving direction, the stored direction information is all deleted, the entire area scan is performed over all directions for all channels, and a new receiving direction for each channel is determined by the obtained best receiving direction.

Abstract: In an antenna configuration (3) having a first antenna arm (4) and having a second antenna arm (5), the two longitudinal directions (10, 11) of the two antenna arms (4, 5) enclose an acute opening angle (?) with one another, wherein the acute opening angle (?) has a value of between 15° and 90° and preferably between 25° and 45°.

Abstract: A broad-band antenna includes in a common plane tow symmetrical parts (2,3) each including at least two interconnected conductor strands (4,5,7,8;19,20,21) powered by a double-wire line (10;22), each strand including in its portion opposite the double-wire line, a resistive load (11,12,14,15;23,24,25,26).

Abstract: A method and apparatus for measuring electrical characteristics (e.g. current, voltage, phase, etc.) between a power source and a load at a set of harmonic frequencies to determine information about the load (e.g., load impedance, power dissipation, etc). According to one aspect of the invention, a first circuit detects a set of electrical characteristics (e.g., current, voltage, and/or phase) of a signal between the power source and the load. A second circuit, coupled to the first circuit to receive the set of electrical characteristics, provides data representing the set of electrical characteristics at a harmonic frequency associated with the signal. A third circuit, coupled to the second circuit, receives the data and determines information about the load (e.g., impedance, power dissipation, discharge current, etc.) at the harmonic frequency.

Abstract: A combination of two juxtaposed rhombic antennas and a V-antenna on a single, longitudinal, non-conductive support boom. The two rhombic antennas lie flat upon one another in substantially the same plane and are supported on the boom with insulating transverse spreader rods.