4958 Multifunctional Microwave Analyzer


4958 Multifunctional Microwave Analyzer integrates multiple functions, such as tests of cable and antenna SWR, distance to fault(DTF), insertion loss and gain, spectrum analysis, and power measurement, etc.. It is flexible and convenient to carry with the frequency range from 1MHz to 20GHz. The battery is available for power supply, which makes it suitable for field tests. Used widely in several fields including field installation, performance test, daily maintenance, and emergency maintenance test of electronic equipment in terms of radar, communication, and ECM. The analyzer can help upgrade filed repair and support of users.

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    • Multiple measurement modes:

Cable & Antenna test: for test of cable and antenna (return loss, DTF, etc.);
Network analysis: for the test of full S-parameters (various display types);
Spectrum analysis: for spectrum analysis (channel power, occupied bandwidth, etc.);
Power monitoring: for power measurement;
Vector voltage measurement: for measurement of vector voltage;
USB power measurement: for power measurement of the USB interface.

    • High-performance:

The frequency range of Cable & Antenna test is 1MHz~20GHz, the frequency resolution is 10Hz;
The frequency range of network analysis is 1MHz~20GHz, the frequency resolution is 10Hz, dynamic range is 80dB~95dB;
The frequency range of spectrum analysis is 100KHz~20GHz, sideband noise is -105dBc/Hz@1MHz (1GHz carrier).

    • Flexibility:

Small and light with built-in battery, provides easy field operation;
Perfect auto diagnosis and auto status test;
Intelligent power management, the indication of remaining capacity and low capacity alarm.

    • Friendly man-analyzer interfaces:

Chinese and English menus with instructions and help info;
7-inch high-brightness true-color TFT LCD, good visibility even under direct sunlight.

    • Universal interfaces:

External input bias T is available, provides power supply for active DUT;
Two types of USB2.0 interfaces, for connection of portable storage device and communication with PC;
One 100M network interface, for construction of local network or remote control.

Cable & antennatest

Frequency range of the Cable & Antenna test is 1MHz~20GHz, frequency resolution is 10Hz. It can measure voltage SWR, return loss, impedance, cable loss of DUT and other parameters. DTF is also ailable to identify impedance mismatch precisely.

Cable & antennatest

Large dynamic range

With dynamic range up to 125dB (IFBW=10Hz), 3656A/B/D is capable of accurate measurement on devices with high rejection ratio.

Large dynamic range

Network analysis

Frequency range of the network analysis is 1MHz~20GHz, frequency resolution is 10Hz. Analysis and measurement of full 4S-parameters vector network are all ailable. The analyzer can test full S-parameters of amplifiers, filters, attenuators and diplexers, etc., with display formats as logarithmic, linear, phase, impedance, polar coordinates and so on.

Network analysis

Spectrum analysis

Frequency range of spectrum analysis is 100kHz~20GHz. With the features of wide frequency band, high resolution, high level of sensitivity, large dynamic range, etc., it can acquire special info which cannot be easily obtained from time-domain measurement, such as spectrum purity, signal distortion, spurious signal, inter-modulation and so on.

Spectrum analysis

USB power measurement(option)

Users may choose 8723X Series USB Power Sensor produced by CETI for power measurement, which can test the RF/microwa signal power at the frequency up to 40GHz.

USB power measurement

Power Monitoring(option)

Frequency of power test ranges from 100KHz to 20GHz. And power measurement of signal is ailable by spectrum input port.

Power Monitoring

Vector Voltage Measurement(option)

Frequency range of vector voltage measurement is from 1MHz to 20GHz. The analyzer can achieve accurate test of cables or other pieces under test by deploying integration scheme instead of a traditional vector voltage meter.

Vector Voltage Measurement



Test in multi fields:

  • Test of filter
  • Test filter specs like insertion loss, ripple wave, out-of-band rejection, etc..
  • Measurement of time domain
  • Test cable length and DTF by cable and antenna test or time domain of network analysis.
  • Test of radar and communication system
  • Measure radar cross parameters
  • Be used in the design of all kinds of military and civil radar systems to precisely test frequency, power and phase noise of all kinds of signals during R&D. It can also test different kinds of spurious signals, harmonic distortion and modulation characteristic of signals.
  • Monitoring and management of spectrum
  • Manage RF signals within the control range and identify and search all kinds of interfering signals, such as monitoring and management of military radio, broadcast station, communication equipment, airport, base station, and sensitive regions. Monitoring of radio is also available due to audio demodulation function of it.
  • Monitoring of communication satellite
  • Monitor spectrum quality, power and power control status of satellite signals, determine and search interfering signals to keep the safe, reliable and stable operation of a satellite network.
  • Test of RFID
  • For an RF identification system, the analyzer is used for transmitting spurious radiation by interrogator and tests on field strength, frequency deviation, occupied bandwidth, polling and timing measurement, etc..
  • Test of Bluetooth
  • For tests on transmitter power, power spectrum, modulation, spurious radiation of transceiver of Bluetooth system, etc..

Test of components, parts and instruments

To measure amplitude of S-parameters, phase and group delay of DUT with highly efficient and powerful capability at error correction, it is widely used in military and civil fields, such as components, radar, aerospace, electronic jamming and countermeasure, communication, radio and television.

For components like cables, connectors, amplifiers, filters, mixers, attenuators, isolators and couplers, the analyzer can conduct tests on parameters including gain, frequency response, bandwidth, insertion loss, conversion loss, isolation and distortion.

Be used for tests on several kinds of instruments and equipment. For example, the analyzer can test specs like frequency, power, phase noise, spurious, harmonic distortion and modulation characteristic in terms of maintenance, repair and monitoring of signal generators.


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