微波发生器20 GHz | 845

信号

Berkeley Nucleonics公司的845型射频微波信号发生器是一种低噪声和快速切换微波信号发生器，覆盖频率范围从10 MHz到20 GHz+。845型微波射频信号发生器提供宽和准确的水平输出功率范围，具有高杂散抑制。采用分数n分频器的高级频率合成，可实现低单边带相位噪声和微赫兹频率分辨率。845型微波射频信号发生器还包括AM, dc耦合，低失真宽带调频，PM, FSK和PSK，频率啁啾，和快速脉冲调制与内部脉冲序列发生器作为标准。有三种内部调制源可用。845型的所有调制模式都可以组合。这使得现代通信和定位系统能够产生复杂的调制信号。845型非常适用于需要模拟调制的高质量连续波微波源的应用。它包括我;直流耦合宽带fm, PM, FSK和PSK，和快速脉冲调制为标准。 Optionally, frequency chirps and programmable pulse trains can be provided. The Model 845 operates with an ultra-stable temperature compensated 100 MHz reference (OCXO) and can be phase-locked to any external reference from 1 to 250 MHz. Additionally, The combination of pulse modulation and FM simulates Doppler effects or chirp signals. Simultaneous AM and pulse modulation provides the types of signal occurring in pulse radar applications with rotating antenna. The combination of FM and AM can be used to check fading effects of FM receivers.