| 摘要 |
PURPOSE:To simply meter the radiation power of TDMA carrier waves by metering the radiation power of the carrier waves locally transmitted and by metering the radiation power of the carrier waves received by the TDMA so that they are compared and operated. CONSTITUTION:The burst type local carrier waves, which are generated from a power amplifier 4, are transmitted through directive couplers 5 and 6 from an antenna and at the same time are added from the coupler 5 to a detector 12 so that they are held by a sample holder 13 for the transmission period. The carrier waves thus held are metered by a volt meter 14 so that they are converted to a voltage corresponging to the readiation power corresponding to the local transmission carrier waves. The radiation powers of the received carrier waves by the burst type TDMA systems, which have been transmitted locally through a received frequency converter 9 and a directive coupler 10, are metered by means of a volt meter 17. The voltages metered by the meters 14 and 17 are stored in a processor 18, and the ratio inbetween is calculated and added to the locally transmitted carrier wave radiation power by the volt meter 14. Then, it is possible to meter the transmission carrier wave radiation powers from other stations. |
