Portable Spectrum Analyzer TW4950

Spectrum Analyzer

Portable Spectrum Analyzer TW4950


Product Overview :


Techwin Portable Microwave Spectrum Analy zer TW4950 is the new generation portable microwave spectrum analyzer developed by Techwin using broadband microwave component integration design technology, microwave multilayer PCB design technology, efficient voltage transformation system design technology and mu lti-band sweep & individual thread processing technology. Compared with the last generation pr oduct, its frequency range increases by 5 times, display average noise level decreases by 20dB, si ngle sideband phase noise decreases by 20dB and measuring speed increases by 4 times, featured by broad frequency band, high performance index, small size, light weight, flexible power supply and easy maneuvering, suitable for field service.
Available in the frequency range 1MHz ~ 18 GHz, Techwin Portable Microwave Spectrum Analyzer TW4950 can meet the ne ed of measurement from short-wave through to wave band Ku. It uses menu-type operation in terfaces and graphical display of measurement result, which operation is simple and result is direct viewin g. Portable microwave spectrum analyzer is internally built with a large-capacity FLASH memory and supports USB external memory by which the field measurement curves can be stored for subsequent analysis and processing and filing up for management.
Techwin Portable Microwave Spectrum Analyzer TW4950 is mainly used in the development, repair and maintenance etc. various sectors of radar and communication equipment as well as by the spectrum monitoring and management department for spectrum monitoring and management.


Main Features:


  • High measurement speed
  • Abundant measurement functions
  • Support both linear sweep and list sweep
  • Chinese/English menu for easy use
  • Available in battery power, convenient for field service
  • Built-in large-capacity memory and USB external memory extension supported
  • Intelligent battery management function, as long as 4 hours battery service life

Techwin Portable Microwave Spectrum Analyzer TW4950 can easily realize fast and efficient signal detection and measurement no matter in laboratory or in field.

High measurement speed

The minimum sweep time is only 600ms at 18GHz span.

Abundant measurement functions

In addition to spectrum measurement function, it also has the functions of occupied bandwidth measurement, channel power measurement, adjacent channel power measurement, etc

Field intensity measurement function

The field intensity measurement function can position the interference signal by measuring its field intensity; and allows users to edit the antenna factor.

Support both linear sweep and list sweep

The list sweep mode can help users easily realize fast measurement of sub-band

Chinese/English Menu for easy use

This instrument is available in menus in Chinese and English versions, the switching between which can be realized by one button conveniently.

Built-in large-capacity memory and USB external memory extension supported

Techwin Portable Microwave Spectrum Analyzer TW49 50 is internally built with a large-capacity memory and supports USB external memory extens ion, which can meet the requirements of trace storage in field measurement.

Typical Applications:

In the case of complex field measurement under special testing environment, Techwin Portable Microwave Spectrum Analyzer TW4950 can realize fast measurement of microwave signals, its features of high measurement sp eed, high measurement accuracy etc. allow it to meet the needs of spectrum monitoring and management departments for spectrum monitoring and management and render it a broad application prospect in mobile communication and radio & television, etc. fields.

Technical Specifications:

=-133dBm (10MHz ~ 7GHz,the preamplifier is off) =-127dBm (7GHz ~ 18GHz)
Model TW4950
Frequency Range 1MHz ~ 18GHz
Reference Frequency Nominal frequency: 10MHz
Aging rate: ±1×10-8/day, ±1×10-6/year
Temperature stability: ±1×10-6 (-15~60℃, relative to 25℃)
Frequency Readout Accuracy Frequency readout accuracy=±(Frequency readout × Frequency reference error+5%×Frequency span+25%×Resolution bandwidth)
Sweep Width 1MHz~18GHz or 0Hz
Resolution Bandwidth 1Hz ~ 3MHz (step by 1, 3, 10)
Video Bandwidth 1Hz ~ 3MHz (step by 1, 3, 10)
Noise Sideband <-80dBc/Hz (carrier of 18GHz, 1kHz offset)
<-89dBc/Hz (carrier of 18GHz, 10kHz, 20kHz, 30kHz offset)
<-91dBc/Hz (carrier of 18GHz, 100kHz offset)
<-100dBc/Hz (carrier of 18GHz, 1MHz offset)
Residential Response =-82dBm (the preamplifier is off)
=-95dBm (the preamplifier is on,10MHz ~ 4GHz)
Display Average Noise Level =-153dBm (10MHz ~ 4GHz,the preamplifier is on)
=-5dBm 1dB Compression Point
Second-order HarmonicDistortion =-43dBc (50MHz ~ 4GHz)
=-58dBc (4GHz ~ 18GHz)
Third-order Intermodulation =4dBm typical (50MHz ~ 4GHz)
=8dBm typical (4GHz ~ 18GHz)
Sweep Time 1ms ~ 100s (at zero-span)
100ms ~ 100s (at non zero-span)
Overall-level Uncertainty ±2.7dB (0?~ 50?, preheated for 30m)
Input Attenuation Range 0 ~ 30dB, 10dB step
Maximum Safety Input Level +27dBm
Standing Wave Ratio of Input Port Voltage =1.8:1 (<13GHz, typical) =2.0:1 (13GHz~18GHz, typical)
Power Consumption <28W
Power Supply Mode DC, rechargeable battery
Battery Service Life =2 hours
Input Interface N-female, 50? resistance
Dimension Length x width x depth=313mm x 211mm x 87mm
Weight Lighter than 7kg

Ordering Information:

  • Main Unit: Techwin Portable Microwave Spectrum Analyzer TW4950 Accessories
  • (1) User’s Guide
  • (2) AC-DC power adapter
  • (3) USB communication cable
  • (4) PC utility software CD
  • (5) Three-wire power cord
  • (6) Conformity Certificate
  • Main Options:
  • (1) Rechargeable battery
  • (2) N (male) – N (male) testing cable
  • (3) Instrument shipping case

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