The Ceyear 4025 spectrum analyzer is a new generation of high performance handheld spectrum analyzer, with a frequency measurement rang e of 9kHz to 54 GHz, mainly used for installation and commissioning of wireless communication equipment in the field, maintenance and interference detection, etc. It is small, lightweight, highly adaptable to the environment, flexible in power supply and ea sy to operate.
4025 spectrum analyzer has many function modes such as Real time Spectrum Analyzer, Interference Analyzer , Channel Scanner , Field Strength Measurement, USB CW and Peak Power Measurement, AM/FM/PM Analyzer , Location Analyzer, it also has the function of Channel Power, Occupied Bandwidth, Adjacent Channel Power, Spectrum Emission Mask, Carrier to Noise Ratio, Harmonic Distortion, Spurious Emission Mask, Indoor/ Outdoor Map Coverage and other intelligent measurement. The spectrum analyzer supports LAN, USB, Micro SD card, Wi Fi wireless communication and other interfaces. The instrument adopts a 10.1 inch capacitive touch screen, which supports marker dragging, frequency and amplitude parameters dragging and scaling, etc.
The product can be applied to mobile communication, satellite communication, radar detection, microwave communication, on site debugging and installation and maintenance of electronic reconnaissance and countermeasure equipment, interference source direction finding and map positio ning, transient time varying signal testing, etc.
Main Features
- Frequency range coverage: 9 kHz to 54 GHz, low frequency can be extended to 5 kHz, full band pre amplifier are configured
- RF performance specifications:
- DANL: ≤-165dBm/Hz (2MHz - 2GHz , Pre-amplifier on, Typ . for 4025A/B/D Model)
- ≤-163 dBm/Hz (2MHz - 2GHz , Pre-amplifier on, Typ . for 4025E/G/K Model)
- SSB Phase Noise: ≤-113dBc/Hz@100kHz offset@1GHz carrier (Typ.)
- ≤-108dBc/Hz@100kHz offset@10GH z carrier(Typ.)
- TOI: +16dBm@900MHz (Typ.)
- Total Amplitude Uncertainty: 1.0dB(Typ.)
- Fast Sweep Speed
- Sweep time < 33ms (20 GHz span, 3 MHz RBW)
- Sweep time < 4s (1 GHz span, 1 kHz RBW, Fast FFT sweep mode)
- Multiple measurement function modes
- Spectrum Analyzer, Interference Analyzer (Spectrogram, RSSI), Channel Scanner, Field Strength Measurement, USB CW Power Measurement, USB Peak Power Measurement, AM/FM/PM Analyzer, Location Analyzer, Real-time Spectrum Analyzer (supporting DPX and Spectrogram display), 2G/4G/5G Demodulation Analysis, IQ analyzer, Time Gate Scanning etc.
- Various intelligent measurement functions
- Channel Power, Occupied Bandwidth, Adjacent Channel Power, Spectrum Emission Mask, Carrier-to-Noise Ratio, Harmonic Distortion, Spurious Emission Mask, Indoor/Outdoor Map, Gated Sweep, etc. Support GPS/Beidou positioning and frequency disciplined function for the crystal in the instrument, the typical frequency reference accuracy after GPS locking calibration can reach ±10ppb
- Multiple types of auxiliary test interfaces and digital interfaces
- 10MHz Reference Input and Output, GPS/Beidou Antenna, Zero Span IF Output, Wi-Fi Wireless Communication Interface, LAN, USB, MicroSD, etc.
- User-friendly operation experience
- 10.1" LCD and capacitive touch screen with 6 independent markers, support for marker dragging, frequency/amplitude parameters dragging and scaling functions, support for signal tracking and peak tracking, 3 display traces, 6 detection methods (Normal, Peak, Negative Peak, Sample, Average, RMS)
- Excellent field usability
- Strong environmental adaptability, working temperature -20℃ ~ 55℃ , storage temperature -50℃ ~ 70℃ ; light weight, the whole instrument including battery weighs about 3.5kg ~ 3.8kg; supports three vision styles: Default, Black & White, Night Vision; built-in large-capacity lithium-ion battery, typical operating time up to 3~4 hours
- Multiple types of optional field test accessories can be configured
- Such as USB CW Power Sensors, USB Peak Power Sensors, omnidirectional antennas, directional antennas, USB electronic compasses, EMI near-field probes, car chargers, Smart Battery Charging Base, etc.
Various Measurement Modes and Options
Spectrum Analyzer Mode
The Spectrum Analyzer function of the 4025 spectrum analyzer is equipped with Channel Power, Occupied Bandwidth, Adjacent Channel Power, Spectrum Emission Mask, Carrier-to-Noise Ratio, Audio Demodulation, Harmonic Distortion, Spectrum Emission Mask, Multi-Carrier Adjacent Channel Power and other test functions as standard, featuring high test sensitivity, fast sweeping speed, large dynamic range and good phase noise performance. 4025 spectrum analyzer has a variety of built-in predefined signal standards that can be called up directly, supports noise marker and frequency counter functions, can display 3 traces simultaneously, and has different detection methods such as Normal, Peak, Negative Peak, Sample, Average, RMS, and supports signal tracking and peak tracking functions.
Interference Analyzer Mode (Option)
The Interference Analyzer option features spectrum measurement, Spectrogram and RSSI measurement. The Spectrogram uses a three-dimensional display of frequency-amplitude-time, making it easy to observe periodic or intermittent signals. The different colors in the Spectrogram show the strength of the signal amplitude, RSSI is mainly used to measure the power change of a point frequency signal in a time period, both Spectrogram and RSSI measurement support the automatic storage function of the signal.
Channel Scanner Mode (Option)
The Channel Scanner Mode provides the measurement of the signal power of multiple channels. The signal power is displayed as a bar graph or as a table, and the signal power of up to 20 channels can be measured. There are three measurement modes depending on how the channels are set up: channel scanner, frequency scanner and list scanner, all of which allow the bandwidth and number of channels to be set.
AM/FM/PM Analyzer Mode (Option)
The AM/FM/PM Analyzer mode provides the display of AM, FM and PM modulation signal profiles and the analysis of the associated parameters. The main plots and related parameters are measured as shown below.
RF spectrum: similar to the spectrum analyzer mode, the spectrum plot of the modulated Signal is displayed and the occupied bandwidth can be measured.
Audio Spectrum: displays the spectrum of the demodulated audio signal.
Audio Waveform: displays the waveform of the demodulated audio signal in the time domain. Parameter analysis function: Carrier power, Demodulation rate, carrier frequency offset, modulation depth (AM), modulation frequency offset (FM), SINAD, modulation distortion, total harmonic distortion and other parameters of the modulated signal can be measured and analyzed.
USB CW Power Meter(Option)
The USB Power Meter can measure the CW signal power up to 40GHz with the external USB power sensor of 87230/87231/84232/87233 series.
USB Peak Power Meter (Option)
4025 spectrum analyzer connects 87234D/E/F/L USB peak power sensor through a USB interface, which can test RF/microwave signals up to 67GHz, and realize pulse power measurement in a large dynamic range.
Field Strength Measurement (Option)
The 4025 spectrum analyzer can be used with portable antennas for field strength measurements and is widely used in space electromagnetic environment monitoring and radio management. The antenna file can be called up directly by the user or the antenna factor can be defined. Field Strength measurements can be made in three modes: point frequency measurements, frequency scan measurements and list scan measurements. Point frequency measurement is performed by setting the point frequency to observe the frequency offset, amplitude and field strength of the current signal; frequency scan measurement is performed by setting the start frequency, step frequency and number of scanning points to observe the amplitude and field strength of a frequency range; list scan measurement is performed by calling a pre-edited or saved list to observe the amplitude and field strength of the listed frequency points.
Location Analyzer Mode (Option)
The Location Analyzer option requires a directional antenna, USB electronic compass and GPS/Beidou options to achieve direct interference signal finding, horizontal scan direction finding and map cross-location. When equipped with the ZE9080 series antenna and handheld handle, a separate configuration is not necessary due to its built-in electronic compass.
Real-time Spectrum Analyzer Mode (Option)
The 4025 spectrum analyzer has a Real-time Spectrum analyzer function, which is mainly used for the capture and analysis of transient time-varying signals and burst signals. The real-time analysis bandwidth is up to 40MHz or 120MHz, and the transient signal DPX and Spectrogram measurement functions can be realized.
Out-door Map (Option)
The Outdoor Map option is a measurement function in Spectrum Analyzer mode that allows RSSI and Adjacent Channel Power Ratio tests to be performed and the test results can be marked on a map in real-time based on time or distance. The test results marked on the map can be saved to the instrument for subsequent recall.
Indoor Map (Option)
The Indoor Map option allows RSSI and Adjacent Channel Power Ratio tests to be carried out. As the GPS signal cannot be received indoors, the user has to manually move the position and mark the test results on the map. The test results marked on the map can be saved to the instrument for later recall and viewing. A special software (included with the option) allows the user to convert the floor plan in image format into a tile map for storage on the instrument.
Time Gate Function(Option)
The Time Gate scanning function is used for interference detection of time-division signals, and the time gate scanning function is divided into the time domain window and the frequency domain window. In the time domain window, you can select the signals in a specific time period by setting the [Delay] and [Length], and the frequency domain results of the selected signals will be displayed in the frequency domain window. By setting [Delay] and [Length], the uplink signal can be selected out, so as to achieve the effect of "filtering" the downlink signal (the downlink signal will have an effect on the search of interfering signals).
Comprehensive Intelligent Measurement Function
Channel Power
Occupied Bandwidth
Adjacent Channel Power Ratio
Spectrum Emission Mask
Carrier to Noise Ratio
Harmonic Distortion
Spur Emissions Mask
Peak List
Multiple RF and Auxiliary Test Interfaces
Typical Applications
Field comprehensive performance evaluation of electronic equipment
The 4025 spectrum analyzer has multiple advantages such as high-performance, fast sweeping speed, multiple test functions, easy operation, etc. With a handheld structure, small size, light weight, strong adaptability to the environment, and battery-powered, it can be applied to the field installation and commissioning of various electronic equipment such as radar, communications, electronic countermeasures and electronic reconnaissance, precision guidance and maintenance.
Field testing and diagnosis of transmitters and receivers
The 4025 spectrum analyzer has a variety of measurement function modes such as Spectrum Analyzer, Real-time Spectrum Analyzer, Interference Analyzer, AM/FM/PM Analyzer, Power Meter, Channel Scanner, Field Strength measurement, etc., and has a variety of intelligent measurement functions such as Channel Power, Occupied Bandwidth, Adjacent Channel Power Ratio, Carrier-to-Noise Ratio, Spurious Mask, Harmonic Distortion, etc., which can provide comprehensive spectrum analysis and diagnosis for field testing of transmitters and receivers. The new product is designed to provide comprehensive spectrum analysis and diagnostic services for transmitter and receiver field testing.
Broadband spectrum monitoring, interference identification
The 4025 spectrum analyzer can be used for electromagnetic environment detection, radio interference analysis, electromagnetic environment background assessment, spectrum monitoring and identification of illegal channel interference signals by means of external omnidirectional or directional antennas; it can be used for spectrum testing of complex signals such as time division multiple access signals and transient time-varying signals by means of Gated Sweep and Real-time Spectrum Analyzer.
