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4540厂生产的RS—12型微波测试接收机是一种精密微波测试设备。它用来测量接收机的噪声系数;计量高频和中频衰减,以及测量放大器的增益和线性、隔离器、调谐器、功率分配器等传输特性和选择性。整机包括1950—4200兆赫本振源和4000—8200兆赫本振源及相应频段的平衡混频器(RS—12—5、RS—12—6),使仪器能工作在30兆赫和2千兆赫至7.5千兆赫频率范围。主要技术特性 1.频率范围:2000～8000兆赫。 2.频率精度:±1％。 3.射频输出功率:大于5毫瓦(本振)。 4.射频输出阻抗:50欧姆。 5.频率漂移:优于2×10~(-4)/10分钟。 6.主中放中频频率:30兆赫±0.2兆赫。 7.主中放中频带宽:1兆赫±0.2兆赫(3分贝)。 8.中频输入阻抗:50欧姆。 9.电表指示满刻度时灵敏度度:优于
RS-12 4540 factory production of microwave test receiver is a precision microwave test equipment. It measures the receiver's noise figure; measures high frequency and intermediate frequency attenuation, as well as measurement of amplifier gain and linearity, isolators, tuners, power splitters and other transmission characteristics and selectivity. The complete machine consists of a 1950-4200 MHz local oscillator and a 4000-8200 MHz local oscillator with a balanced mixer (RS-12-5, RS-12-6) for the corresponding band, enabling the instrument to operate at 30 MHz and 2 000 MHz to 7.5 GHz frequency range. Main technical characteristics 1. Frequency range: 2000 ~ 8000 MHz. 2. Frequency accuracy: ± 1%. RF output power: greater than 5 milliwatts (local oscillator). 4. RF output impedance: 50 ohms. 5. Frequency drift: better than 2 × 10 ~ (-4) / 10 minutes. 6. The main release IF frequency: 30 MHz ± 0.2 MHz. 7. The main release IF bandwidth: 1 MHz ± 0.2 MHz (3 dB). 8. IF input impedance: 50 ohms. 9. Meter indicates full scale sensitivity: better than