| 摘要 |
PURPOSE:To eliminate noise having no correlation with a transmission signal mixed to a reception signal and to measure data with reliability, by taking the transmission signal as a referece signal and calculating a coherent output power of the reception signal. CONSTITUTION:A continuous signal is generated from an oscillator 21 of a transceiver tester, power-amplified at a power amplifier 22 and transmitted to a transmitter T for the wave measurement. The reception signal from a receiver R to be measured is amplified at an amplifier 23 and the level is adjusted, then applied to a narrow band analyzer 24. The continous signal from the oscillator 21 is applied to the analyzer 24, where the coherent output power of the reception signal from the R is calculated by taking the continuous signal from the oscillator 21 as the reference signal. Further, the noise having no correlation with the transmission signal mixed in the reception signal is eliminated, the data with reliability are measured with the transmission of sinusoidal waves, and the constitution of the tester is simplified. |
