二手 Advantest TR4133B 在 玛丽湖, 佛罗里达, 美国

The Advantest TR4133 / TR4133A / TR4133B spectrum analyzers are microprocessor based intelligent spectrum analyzers covering a broad frequency band from 100 kHz to 20 GHz. With an external mixer (accessory) the TR4133/4133B provide further expansion in the measuring frequency range. The TR4133 has no external mixer. The TR4133/4133B use to first-stage mixer: a 100 KHz to 3.6 GHz balancing mixer and a 10 MHz to 20 GHz (3.5 GHz to 20.0 GHz for the TR4133B) harmonics mixer. The low-loss balancing mixer featuring a low average noise level of -118 dBm (with a resolution bandwidth of 1 KHz) permits precise measurement.
The harmonics mixer enables frequencies up to 20 GHz to be measured by mixing the fundamental wave from the first local oscillator with harmonic waves. The higher the order of such mixing, the greater the conversion loss, impairing sensitivity. A 4 GHz to 8 GHz tuned oscillator used as the...