Advantest U3751 Spectrum Analyzer

The U3751 is an 8 GHz, portable spectrum analyzer that responds to a wide variety of demands covering production line to maintenance applications. The main unit weighs 5.6 kgs. or less and is designed to save space. The U3751 is twice as fast as the previous model, and is equipped with features such as LAN, designed specifically for the production line. Digitization of the IF section has enabled level measurements with outstanding reproducibility.

Furthermore, with a three-way power supply that includes battery operation,
better level accuracy, and a warm-up time of five minutes, this analyzer is easy to use in the field.

As well, the U3751 includes basic spectrum analyzer measurement functions and options such as an internal tracking generator. All of these features combine to make the U3571 a portable spectrum analyzer for both factory and field use.

Features

• Compact and light-weight
  308(W)x175(H)x209(D)mm
  5.6kg or less
  
  
• Improved through-put
  2x processing speed of previous model
  
  
  
• Best-in-class overall level accuracy
  0.8dB(10MHz-3GHz)
  1.0dB(3GHz-8GHz)
  
  
  
• RMS wave detector for essential power measurements
  
  
• Same operability as basic spectrum analyzers
  Compact panel with optimal key positioning
  6.5" TFT color LCD
  Standard-equipped processing functions
  Power/OBW/ACP/Counter/Harmonics/Spurious/....

Main Functions

• Frequency range
  9kHz 8GHz
  
  
• Frequency span
  10kHz 8GHz, or Zero span
  Span accuracy : <1%
  
  
• Resolution bandwidth
  300Hz 3MHz
  
  
• Frequency reference stability
  2x10-6/year
  
  
• Resolution bandwidth
  -85dBc/Hz (10kHz offset)
  
  
• Maximum input level
  +30dBm
  
  
• Average display noise level
  -118dBm+2f(GHz)dB (Preamp OFF)
  -133dBm+3f(GHz)dB (Preamp ON)
  
  
• Second harmonic distortion
  <-75dBc typ. (300MHz and above)
  
  
• 2-signal, third order distortion
  <-50dBc (mixer input -20dBm)
  
  
• 1dB gain compressor
  <-8dBm (Preamp OFF)
  <-25dBm(Preamp ON)
  
  
• Sweep Time
  20ms 1000s (at frequency sweep)
  50µs 1000s(at Zero Span)
  
  
• Detector
  RMS/Normal/Posi/Nega/Sample
  
  
• Tracking generator
  10MHz 3GHz (option)