Abstract: A method to detect and jars an electromagnetic transmission includes detecting electromagnetic radiation from an electromagnetic radiating source, determining the type of the received electromagnetic radiation by comparing the signature of the received signal with signatures from a database, selecting the waveform and frequency to disturb the determined type, and transmitting a waveform with a frequency to jam the electromagnetic transmission. A system to jam an electromagnetic transmission is also provided.

Abstract: An apparatus for analyzing a sample, including a sample receiving device, a gas chromatograph and a spectrophotometer, said spectrophotometer including a UV Light Emitting Diode as the light source, an elongated chamber and a detector. The UV light source is arranged to illuminate sample substances conducted through the chamber, and the detector is arranged to identify sample substances by UV absorption spectroscopy.

Abstract: The present invention relates in general to the radio communications field and, in particular, to a method and apparatus for detecting congestion in a spread spectrum Code Division Multiple Access (CDMA) cellular communication system. By measuring the number of Signal-to-Interference Ratio Error reports being received at the Radio Network Controller a potential congestion can be detected in the cell when the number of reports being received is above a threshold. Further can a differentiation be made between a potential or a serious congestion and different actions be performed dependant on if a potential or a serious congestion is detected.

Abstract: An antenna control system for setting the tilt angle of a main lobe of an antenna, in particular of an antenna constituting part of a base station in a mobile cellular communication system, said antenna comprising a plurality of antenna elements and phase shifting means for varying the phase of at least one signal being fed to said antenna elements, wherein adjustment of said phase of said signal is achieved by actuating an operating element, and wherein actuation of said operating element is achieved by operating an operating element actuator. The operating element actuator is coupled to the operating element of the phase shifting means by means of a force field coupling.

Abstract: The present invention relates to a method of increasing the range of air defense and artillery shells of the type which for reasons of firing technology have a rear surface which is at right angles to the shell axis, i.e. most conventional air defense and artillery shells. The invention also includes a design of air defense and artillery shells that corresponds with the said method. The invention is characterized by the rear surface of the shell which at the time of firing is at right angles to the shell axis being reformed to an aerodynamically more advantageous form (5, 9) when it has left the gun barrel and is on the way to the target.

Abstract: A power amplifier has a feedback loop to control the signal level thereof. A current sensing amplifier in the feedback loop is controlled to remove any offset. The input signal is compared with a reference level. When the input signal is below the reference level, an offset compensation value for the current sensing amplifier is stored. When the input signal is above the reference level, the previously stored offset compensation value continues to be applied. The circuit is of particular application in a TDMA radio transmitter.

Abstract: A method in charging a battery powered device (10) having a built-in charge control circuit (13) controlled by the device, and an apparatus for working the method, including said device. The device including the battery (11) is connected to a battery charger (17), and initially when the battery voltage is too low to initiate normal charging of the battery over the charge control circuit, the battery is connected to the battery charger via a current generator (25) which is switched off when the battery voltage has increased to a level which is high enough to support normal charging of the battery over the charge control circuit.

Abstract: An electric arrangement, a battery pack and methods for transmitting digitally encoded information from a first electric device to a digital processor in a second electric device, and a battery information signal transmitted between the devices. An encoder is located in the first electric device and contains the digitally encoded information. A communication line capable of conveying electric information signals representing the information connects the electric devices. A decoder is located in the second electric device and is capable of decoding the information signals into information and supplying the information to the processor in the second device.