With frequency range of 6.5GHz/18GHz/26.5GHz/40GHz, 4957B/D/E/F microwave analyzers integrate multiple functions such as dual-port vector network analysis, cable and antenna feeder test, vector voltage measurement, spectrum analysis (channel power, adjacent channel power, occupied bandwidth, interference analysis and frequency counting), field strength measurement and power measurement, providing you with powerful comprehensive test capabilities.
Dual-port vector network analysis can make comprehensive RF network parameters measurement quickly and accurately, providing logarithmic, linear, phase, group delay, impedance chart, polar coordinate, SWR and other display formats, and providing time domain measurement options.
Cable and antenna feeder test can measure the SWR, return loss, impedance, cable loss and other parameters of microwave networks such as antenna feeders, transmission lines and cables, and can conveniently measure impedance discontinuity points in feeders and cables, with DTF function.
The vector voltage measurement function adopts an integrated solution instead of the traditional vector voltmeter to accurately test the electrical length of cables and some other devices under test.
Spectrum analysis is a spectrum analyzer with standard functions, which can measure the spectrum characteristics comprehensively in an electromagnetic environment.
The field strength measurement function has a friendly user interface and higher test sensitivity. With the corresponding test antenna, it can effectively monitor the electromagnetic spectrum and is widely used in space electromagnetic environment monitoring and radio management.
The USB power sensor is configured to achieve large dynamic range and high-precision power measurement, and can also carry out power monitoring through the spectrum input port.
Main Characteristics
- Rich test functions: antenna feeder test, vector network analysis, spectrum analysis, field strength measurement, power monitoring, vector voltage measurement, USB power measurement, etc.
- Small size, light weight, secondary environmental adaptability, easy to carry and test in special occasions
- 8.4-inch LCD touch screen, easy to operate, friendly man-machine interface, visual display
- Test data can be stored and called, and three kinds of storage media are available: 1.5G or more high-capacity internal storage, USB external storage, SD external storage
- Battery powered, suitable for field use, intelligent power management, with remaining battery capacity indication and low battery alarm function, and sleep energy-saving function
- With six-independent cursor display function, and the cursor position can slide with the finger
- With data storage, playback and comparison functions
- With USB, LAN and other interfaces for program control and data transmission
Network Parameter Measurement
With the frequency range of network analysis of 30kHz~6.5GHz/18GHz/26.5GHz and 50MHz~40GHz, 4957B/D/E/F microwave analyzers can realize standard vector network analysis and measurement of full 4S parameters, and can test full S parameters of amplifier, filter, attenuator, duplexer and other devices, providing logarithmic, linear, phase, group delay, impedance, polar coordinate, SWR and other display formats.
Spectrum Analysis
With the frequency range of the spectrum analysis function (spectrum analysis, field strength, channel power, occupied bandwidth, adjacent channel power ratio, interference analysis, frequency counting) of 100kHz~6.5GHz/18GHz/26.5GHz/40GHz, 4957B/D/E/F microwave analyzers have such features as wide frequency band, high sensitivity, wide dynamic range and good phase noise, can realize fast and efficient signal detection and measurement, can display three traces at the same time, have different optional detector modes such as standard, sample, positive peak, negative peak and mean, and have interference analysis, spectrogram, waterfall plot, data recording and playback functions.
Cable and Antenna Test
As cable and antenna feeder testers, 4957B/D/E/F microwave analyzers can be used to measure the return loss, VSWR, impedance, cable loss and distance to fault of cables, feeders and other devices under test. The measurement of return loss and distance to fault will help you determine the specific cause of performance degradation of the overall system in the cable and antenna feeder system. In addition, some common cable and feeder parameters are built in for convenient use.
Vector Voltage Measurement (option)
With the frequency range of vector voltage measurement of 30kHz~18GHz/26.5GHz and 50MHz~26.5GHz, 4957B/D/E/F microwave analyzers can accurately measure the electrical length and phase shift of devices under test, and can perform reflection and transmission test.
Power Measurement Based on USB Power Sensor (option)
4957B/D/E/F microwave analyzers can use 872XX series USB Continuous Wave Power Sensors of Ceyear to measure power, and can test RF/microwave power up to 40GHz.
Power Monitoring (option)
4957B/D/E/F microwave analyzers can also carry out power monitoring and measurement through the spectrum input port, with frequency range of 9kHz~6.5GHz, 100kHz18GHz/26.5GHz/40GHz.
Field Strength Measurement (option)
4957B/D/E/F microwave analyzers can also be used for field strength measurement together with the corresponding test antennas (e.g., 89101A/B/C/D of Ceyear), and are widely used in space electromagnetic environment monitoring and radio management. The testers support user antennas, allowing users to define their own antennas.
Supporting list sweep
In addition to frequency sweeping, spectrum analysis, antenna feeder test and network analysis also support list sweep. Parameters in each band are independent.
Supporting upper and lower limit lines
Spectrum analysis, antenna feeder test and network analysis support the limit line test. The limit line can be used as a visual reference, and can also be used as the basis for PASS/FAIL judgment. If the test data exceed the upper limit line or fall below the lower limit line, the loudspeaker will sound "dripping" to remind the user that the data have exceeded the limit line.
Chinese and English menu, easy to use
Both Chinese and English menus are available in the testers, one-click switching is very convenient.
Sleep energy-saving function
The analyzer has a sleep energy-saving function, and the sleep time can be set. When the sleep function is activated, the testers will automatically turn off the display or shut down if they are not operated for a certain period of time, thus saving electric energy and effectively extending the working time and service life of battery.
More cursors
8 independent cursors are provided, which can display the parameters of the cursor position and can also search for maximum, minimum or peak values. All cursors have the △ mode, making the test reading easier. In addition, the scale on the left side of the display can facilitate the judgment of the test results.
Automatic software upgrade of USB disk
4957B/D/E/F analyzers have USB interfaces that can be used for intelligent software upgrade and data backup. You can easily use the USB disk to perform software upgrade and maintenance on the instrument. It takes only a few steps and is simple and quick. You can restart the instrument after the upgrade.
Typical Application
4957B/D/E/F microwave analyzers are compact and portable. With many test parameters and comprehensive test functions, they are very suitable for multi-parameter test occasions, and can be battery-powered. As a powerful tool for field engineering installation, debugging, daily maintenance and repair of various microwave electronics, the testers can be widely used in various fields such as radar, communication, radio & television and radio management, and are also a good choice for teaching in colleges and universities.
Test of main performance parameters of radar
With full functions, 4957B/D/E/F analyzers can test the main performance parameters of radar antenna feeder, transmitting/receiving subsystem and other subsystems up to 6.5GHz/18GHz/26.5GHz/40GHz, including the SWR, reflectance, insertion loss, return loss and impedance characteristics of antenna feeder subsystem, the transmitting signal frequency and spectrum characteristics of transmitting subsystem, and the center frequency, gain, differential loss, bandwidth and dynamic range of receiving subsystem.
Multi-parameter test in such fields as cable TV and wireless communication
Cable TV, cellular telephone system, digital mobile communication operators and equipment manufacturers use 4957B/D/E/F testers to perform integrated test on spectrum distribution, antenna feeder contact performance, S parameters of components and parts and feedthrough power in the field.
