品牌：罗德施瓦茨 R&S R/S

■ 在平均功率、平均突发功率、包络峰值功率 (PEP) 和峰均功率比（峰值因子）之间进行选择

■ 在正向功率和吸收功率之间切换

■ 功率差异测量（单位: dB或 %）

■ 在反射测量中的回波损耗或反射系数之间进行选择

■ SWR 监视

■ 指示大值和小值

■ 准模拟条形图显示

■ 在源或负载测量之间进行选择

Z44罗德与施瓦茨功率计NRT-Z44功率传感器

Rohde & Schwarz NRT-Z44

Directional power sensor, 200 MHz to 4 GHz, 30mW to 120(300)W, N female

Directional Power Sensors :NRT-Z14/NRT-Z43/NRT-Z44

These power sensors can be used as self-contained measuring instruments with digital interface even without the base unit. In addition to a directional coupler and analog section, they comprise a processor kernel for control of the hardware and remote interface and for processing the measured data (temperature compensation, linearization, zeroing and frequency-response correction). This compact concept provides a wealth of measurement functions without the restrictions of conventional analog solutions.

Many applications call for continuous monitoring of power and reflection, e.g. to enable fast reaction in case of any damage to the antenna. Apart from providing high accuracy, the measuring instrument must not affect SWR and attenuation in the antenna feeder nor should it generate any interfering signals. This means very good matching, low insertion loss and excellent intermodulation characteristics: all these features are of course provided by the Directional Power Sensors: NRT-Z14, NRT-Z43, and NRT-Z44 as standard. On of this, the sum power is indicated when a multicarrier signal is applied a feature rarely found in other directional power sensors. Since the length of the connecting cable is not critical because of digital datatransfer, the Directional Power Sensors: NRT-Z14, NRT-Z43 and NRT-Z44 can be fitted where they measure most accurately: at the antenna feedpoint.