Siyi 4025 Spectrum Analyzer

Siyi 4025 Spectrum Analyzer Overview

Siyi 4025D Spectrum Analyzer is a new generation of high-performance handheld spectrum analyzer launched by Dianke Siyi, with a frequency measurement range

Covering 9kHz~20GHz, mainly used for installation, debugging, maintenance, and interference troubleshooting of outdoor wireless communication equipment,

It has the characteristics of small size, light weight, strong environmental adaptability, flexible power supply, and convenient operation.

The 4025D spectrum analyzer has a 40MHz bandwidth for real-time spectrum analysis, interference analysis, channel scanning, and field strength measurement

USB continuous wave and peak power measurement, analog demodulation analysis, directional analysis and other measurement function modes, as well as channel power

Occupation of bandwidth, adjacent channel power, spectrum transmission template, carrier to noise ratio, harmonic distortion, stray emission template, indoor/outdoor map coverage

Equipped with intelligent measurement functions, supporting interfaces such as LAN, USB, MicroSD card, Wi Fi wireless communication, etc.

The whole machine adopts a 10.1-inch capacitive touch screen, which supports functions such as tag dragging, frequency and amplitude dragging and scaling,

The product can be applied to on-site debugging, installation, and maintenance of mobile communication, satellite communication, and microwave communication equipment

Interference source direction finding and map positioning, transient and time-varying signal testing, and other fields.

Main Features

Frequency coverage range: 9kHz~20GHz, low frequency can be extended to 5kHz, standard full band preamplifier;

RF performance indicators

Display average noise level: ≤ -165dBm/Hz (2MHz~2GHz, preamplifier on, typical value)

Single sideband phase noise: ≤ -113dBc/ Hz@100kHz Frequency offset @ 1GHz carrier (typical value)

≤-108dBc/ Hz@100kHz Frequency offset @ 10GHz carrier (typical value)

Third order intermodulation distortion:+ 16dBm@900MHz (Typical value)

Total level uncertainty: ± 1.0dB (typical value)

Fast scanning speed

Scan time<33ms (scan width 20GHz, resolution bandwidth 3MHz)

Scanning time<4s (scanning width of 1GHz, resolution bandwidth of 1kHz, fast FFT scanning method)

Multiple measurement function modes: spectrum analysis, interference analysis (waterfall plot, RSSI), channel scanning, field strength measurement

USB continuous wave power measurement, USB peak power measurement, analog demodulation analysis (AM, FM, PM), directional analysis

40MHz bandwidth real-time spectrum analysis (supporting digital afterglow spectrum and waterfall display), etc;

Multiple intelligent measurement functions: channel power, occupied bandwidth, adjacent channel power, spectrum transmission template, carrier to noise ratio, harmonic distortion

Stray emission template, indoor/outdoor map coverage, time gate measurement, etc., supporting GPS/Beidou positioning and internal crystal oscillator measurement

Frequency taming calibration function, the typical value of frequency reference accuracy after GPS locking calibration can reach ± 10ppb;

Diverse auxiliary testing interfaces and digital interfaces: 10MHz reference input/output, GPS/Beidou antenna, zero sweep wide intermediate frequency output

Wi Fi wireless communication interface, LAN, USB, MicroSD, etc;

Convenient and efficient user experience: 10.1-inch LCD and capacitive touch screen with 6 independent markers, supporting marker dragging

Frequency/amplitude parameter drag and zoom function, supports signal tracking and peak tracking, with 3 display traces

6 detection methods (standard, positive peak, negative peak, sampling, mean, root mean square);

Good outdoor usability: Strong environmental adaptability, working temperature -20 ℃~55 ℃, storage temperature -50 ℃~70 ℃;

Lightweight, with a total battery weight of approximately 3.5kg; supports three display modes: default, outdoor, and night vision;

Built in large capacity lithium-ion battery, with a typical battery life of up to 4.5 hours;

Multiple optional field testing accessories can be configured, such as USB continuous wave power probe, USB peak power probe, omnidirectional antenna, etc

Directional antenna, electronic compass, EMI near-field probe, car charger, battery dock charger, etc.

Rich measurement function modes and options

Spectrum analysis:

The spectrum analysis function of the 4025D spectrum analyzer comes standard with channel power, occupied bandwidth, adjacent channel power, spectrum transmission template

Test functions such as carrier to noise ratio, audio demodulation, harmonic distortion, spectrum transmission template, and multi carrier adjacent channel power,

It has the characteristics of high testing sensitivity, fast scanning speed, large dynamic range, and good phase noise index.

The 4025D spectrum analyzer is equipped with multiple predefined signal standards that can be directly called upon, supporting noise labeling and frequency counter functions,

It can display three trace lines simultaneously and has different detection methods such as standard, positive peak, negative peak, sampling, mean, and root mean square,

Support signal tracking and peak tracking functions.

Interference analysis (optional):

The interference analysis option of the 4025D spectrum analyzer has functions of spectrum measurement, waterfall plot, and RSSI measurement,

The waterfall plot uses a three-dimensional display of frequency amplitude time, which facilitates the observation of periodic or intermittent signals,

Displaying different colors in a waterfall chart reflects the strength of signal amplitude, and RSSI (Received Signal Strength Indicator) is mainly used for measuring

The intensity variation of a point frequency signal over a period of time, waterfall plot, and RSSI measurement both support automatic signal storage function.

Channel scanning (optional):

The channel scanning measurement mode provides measurement of signal power for multiple channels. Signal power is presented in the form of a bar chart or a list

To display, up to 20 channels of signal power can be measured. There are three measurement methods based on the way the channel is set:

Channel scanning, frequency scanning, and list scanning can all be used to set the bandwidth and number of channels.

Analog demodulation analysis (optional):

The demodulation analysis measurement mode provides display of AM, FM, PM modulation signal spectra and analysis of related parameters.

The main spectra and related parameter measurements are as follows:

Radio frequency spectrum: Similar to spectrum analysis mode, it displays the spectrum of the modulated signal and can measure the occupied bandwidth.

Audio spectrum: Display the frequency spectrum of the demodulated audio signal.

Audio waveform: Display the waveform of the demodulated audio signal in the time domain.

Parameter analysis: It can analyze the carrier power, modulation rate, carrier frequency offset, modulation depth (AM)

Measure and analyze parameters such as modulation frequency offset (FM), modulation phase offset (PM), signal-to-noise ratio, modulation distortion, and total harmonic distortion.

USB power measurement (optional):

The USB power measurement function is achieved through the use of external USB power probes from the 87230/87231/84232/87233 series of Denso Instruments,

It can measure the power of continuous wave signals up to 40GHz.

USB peak power measurement (optional):

The 4025D spectrum analyzer is connected to the 87234D/E/F/L USB peak power probe of the Electric Science Instrument through a USB interface,

It can test RF/microwave signals up to 67GHz and achieve pulse power measurement with a large dynamic range.

Field strength measurement (optional):

The 4025D spectrum analyzer, when combined with a portable antenna, can measure field strength and is widely used in space electromagnetic environment monitoring

And radio management. Support users to directly call antenna files or customize antenna factors. Field strength measurement can be divided into point frequency measurement,

There are three modes: frequency scanning measurement and list scanning measurement. The point frequency measurement observes the current point by setting the point frequency

Frequency offset, amplitude value, and field strength value; Frequency scanning measurement is achieved by setting the starting frequency, step frequency, and number of scanning points

Observe the changes in amplitude and field strength values within a frequency range; List scanning measurement is performed by calling pre edited or saved

Observe the amplitude and field strength values of the frequency points in the list.

Directional analysis (optional):

The directional analysis option of the 4025D spectrum analyzer needs to be equipped with directional antennas, electronic compasses, GPS/Beidou and other options,

Realize the functions of direct search for interference signals, horizontal scanning direction finding, and map cross positioning. Selected ZE9080 series antenna

When holding the handle, there is no need to configure it separately due to its built-in electronic compass.

40MHz bandwidth real-time spectrum analysis (optional):

The real-time spectrum analysis function of the 4025D spectrum analyzer is mainly used for capturing transient and time-varying signals, as well as burst signals

Real time analysis with a maximum bandwidth of 40MHz, capable of measuring transient signal digital afterglow and waterfall plots.

Outdoor map (optional):

The outdoor map option is a measurement function in spectrum analysis mode, which can be used for RSSI testing of interference signals and neighbor channel power ratio

Test and mark the test results on the map in real-time based on time or distance. The test results marked on the map can be saved to

Instrument, for future reference and viewing.

Indoor map (optional):

The indoor map option can be used for RSSI testing and adjacent channel power ratio testing. Due to the inability to receive GPS signals indoors, users

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,

It is convenient to call and view later. Users can convert flat images in image format to

Store tile images in the instrument.

Typical Applications

On site comprehensive performance evaluation of electronic devices

The 4025D spectrum analyzer product has multiple advantages such as high performance indicators, fast scanning speed, multiple testing functions, and easy operation,

Adopting a handheld structure, it has small size, light weight, strong environmental adaptability, can be powered by batteries, and can be applied to various electronic devices

On site installation, debugging, and maintenance support.

On site testing and diagnosis of transmitters and receivers

The 4025D spectrum analyzer product includes spectrum analysis, real-time spectrum analysis, interference analysis, analog demodulation analysis, power measurement

Channel scanning, field strength measurement and other measurement function modes, and have channel power, occupied bandwidth, adjacent channel power

Multiple intelligent measurement functions such as carrier to noise ratio, spurious template, harmonic distortion, etc. can be used for on-site testing of transmitters and receivers

Provide comprehensive spectrum analysis and diagnostic services.

Broadband spectrum monitoring and interference identification

The 4025D spectrum analyzer can be used for electromagnetic environment detection, radio interference analysis, and other applications through external omnidirectional or directional antennas

Assessment of electromagnetic environment background, monitoring of spectrum, and identification of illegal channel interference signals, etc; Through time gates and real-time spectrum analysis functions

Can be used for spectrum testing of complex signals such as time-division multiple access signals and transient time-varying signals.

Siyi 4025 Spectrum Analyzer