4025 Handheld Spectrum Analyzer(9kHz to 20GHz)

Ceyear Technologies Co., Ltd.

Product Overview
The Ceyear 4025D spectrum analyzer is a new generation of high-performance handheld spectrum analyzer,
with a frequency measurement range of 9kHz to 20GHz, 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 easy to operate.
4025D spectrum analyzer with 40MHz real-time spectrum analysis bandwidth is configured with
Interference Analysis, Channel Scan, Field Strength Measurement, USB CW and Peak Power Measurement,
Analog Demodulation Analysis, Directional Analysis and other measurement function modes, as well aschannel 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 functions. The spectrum analyzer supports LAN, USB, MicroSD card, Wi-Fi wirelesscommunication and other interfaces. The whole machine adopts a 10.1-inch capacitive touch screen, which
supports marker dragging, frequency and amplitude 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 positioning, transient time-varying signal testing, etc.

Main Features

Frequency range coverage: 9 kHz to 20 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.)SSB Phase Noise: ≤-113dBc/Hz@100kHz offset @1GHz carrier(Typ.)≤-108dBc/Hz@100kHz offset @10GHz carrier(Typ.)
TOI: +16dBm @ 900 MHz(Typ.)
Total Amplitude Uncertainty: ±1.0dB(Typ.)

Fast Sweep Speed
Sweep time< 33ms (20 GHz sweep span, 3 MHz resolution bandwidth)
Sweep time< 4s (1 GHz sweep span, 1 kHz resolution bandwidth, Fast FFT sweep mode)Multiple measurement function modes
spectrum analysis, interference analysis (waterfall, RSSI), channel scan, field strength
measurement, USB CW power measurement, USB Peak power measurement, analog
demodulation analysis (AM, FM, PM), directional analysis, 40MHz real-time spectrum analysis
bandwidth (supporting digital persistence spectrum and waterfall display), 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
coverage, time gate measurement, etc. Support GPS/Bei Dou positioning and frequency
disciplined calibration function for the crystal in the machine, the typical value of frequency
reference accuracy after GPS locking calibration can reach ±10ppb.


A wide range of auxiliary test interfaces and digital interfaces
10MHz reference input and output, GPS/Bei Dou antenna, zero sweeps wide 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 parameter dragging and scaling functions, support for signal
tracking and peak tracking, 3 display traces, 6 detection methods (standard, positive peak,negative peak, sampling, mean, root mean square).



Excellent field usability:
strong environmental adaptability, working temperature -20℃~55℃, storage temperature -50℃
~70℃; lightweight, the whole machine including battery weighs about 3.5kg; supports three
display modes: standard, outdoor and night vision; built-in large-capacity lithium-ion battery,typical operating time up to 4.5 hours.



A wide range of optional field test accessories can be configured
such as USB CW power sensors, USB Peak power sensors, omnidirectional antennas,
directional antennas, electronic compasses, EMI near-field probes, car chargers, battery
holders, etc.

Various Measurement Modes and Options

Spectrum Analysis Mode
The spectrum analysis function of the 4025D spectrum analyzer is equipped with channel
power,

occupiedbandwidth,

adjacent

channelpower,

spectrumemissionmask,

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 scanning speed, large dynamic range and good phase noise indicators. 4025D

spectrum analyzer has a variety of built-in predefined signal standards that can be The 4025D
has a wide range of 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 standard, positive peak, negative peak, sampling, mean and root
mean square, and supports signal tracking and peak tracking functions.

Interference Analysis Mode (Option)
The 4025D spectrum analyzer's interference analysis option features spectrum measurement,waterfall diagram and RSSI measurement. The waterfall diagram uses a three-dimensional
display of frequency-amplitude-time, making it easy to observe periodic or intermittent signals.
The different colours in the waterfall diagram reflect the strength of the signal amplitude.



Channel Scanner Mode (Option)
The channel scanner measurement mode provides the measurement of the signal power ofmultiple channels. The signal power is displayed as a bar graph or as a list, 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 scan, frequency scan and list scan, all of which allow
the bandwidth and number of channels to be set.



Analog Demodulation Mode (Option)
The demodulation analysis measurement mode provides the display of AM, FM and PM
modulation signal profiles and the analysis of the associated parameters. The main plots andrelated parameters are measured as shown below.
RF spectrum: similar to the spectrum analysis 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, modulation rate, carrier frequency deviation,
modulation depth (AM), modulation frequency deviation (FM), modulation phase deviation(PM), signal-to-nerve ratio, modulation distortion, total harmonic distortion and otherparameters of the modulated signal can be measured and analyzed.

USB CW Power Measurement Mode (Option)
The USB power measurement function can measure the CW signal power up to 40GHz with theexternal USB power sensor of 87230/87231/84232/87233 series.



USB Peak Power Measurement Mode (Option)
4025D 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 4025D 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 canbe 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 rate to observe the frequency
deviation, amplitude and field strength of the current point; frequency scan measurement isperformed by setting the start frequency, step frequency and number of scanning points toobserve the amplitude and field strength of a frequency range; list scan measurement isperformed by calling a pre-edited or saved list to observe the amplitude and field strength ofthe listed frequency points.



Directional Analysis Mode (Option)
The 4025D spectrum analyzer's directional analysis option requires a directional antenna,
electronic compass and GPS/Bei Dou 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.



40 MHz Real-time Spectrum Analysis Mode (Option)
The 4025D spectrum analyzer has a real-time spectrum analysis 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, and the transient signal digital afterglow and waterfall
graph measurement functions can be realized.

Out-door Map Mode (Option)
The outdoor map option is a measurement function in spectrum analysis mode that allows RSSI
and adjacent channel power ratio tests to be performed and the test results to be marked on amap 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 Mode (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 andmark 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 theuser to convert the floor plan in image format into a tile map for storage on the instrument.

Comprehensive Intelligent Measurement FunctionChannel Power

Occupied Bandwidth

Adjacent Channel PowerSpectrum Emission Mask



Carrier To Noise Ratio

Harmonic Distortion

Spurious Emission Mask

Multiple RF and Auxiliary Test Interfaces

Typical Applications


Field comprehensive performance evaluation of electronic equipment
The 4025D spectrum analyzer has multiple advantages such as high-performance indicators,
fast scanning speed, multiple test functions, easy operation, etc. With a handheld structure,small size, lightweight, strong adaptability to the environment, and battery-powered, it can beapplied 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 4025D spectrum analyzer product has a variety of measurement function modes such as
spectrum analysis, real-time spectrum analysis, interference analysis, analogue demodulation
analysis, power measurement, channel scan, field strength measurement, etc., and has avariety of intelligent measurement functions such as channel power, occupied bandwidth,
adjacent channel power, carrier-to-noise ratio, spurious Mask, harmonic distortion, etc., which
can provide comprehensive spectrum analysis and diagnosis for field testing of transmittersand receivers. The new product is designed to provide comprehensive spectrum analysis anddiagnostic services for transmitter and receiver field testing.



Broadband spectrum monitoring, interference identification
The 4025D 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 oftime gates and real-time spectrum analysis.

Technical Specifications
Model
Frequency Range

Frequency Reference

Sweep Time
Frequency Readout Accuracy
Frequency Span

4025D

9kHz~20GHz
Frequency:10MHz
Aging: ±5×10-7/year
Initial Frequency Accuracy: ±3×10-7
Temperature
Stability:±1×10-7(-20℃~+55℃,Comparativeto
25℃±10℃)
Frequency reference error: ± (last calibration date x aging rate +temperature stability + calibration accuracy)
Note: default to the last calibration time is 1 year, the indicator is
guaranteed by the crystal manufacturer
Range:
1μs~6000s(Zero Span)
Accuracy:±1.0%(Zero Span)±(Frequency Readout× frequency Reference +1 %× Span +10%×Resolution Bandwidth)
Range:
0Hz(Zero Span),10Hz~20GHz
Accuracy: ±1.0%

Resolution Bandwidth

1Hz~20MHz(1-2-3-5-8 steps)

Video Bandwidth

1Hz~20MHz(1-2-3-5-8 steps)≤-108dBc/Hz@10kHz,≤-110dBc/Hz@100kHz≤-118dBc/Hz@1MHz,≤-129dBc/Hz@10MHz
Pre-amplifier ON:
Displayed Average Noise Level≤-161dBm(2MHz~2.4GHz),≤-160dBm(2.4GHz~6GHz),(input port is connected with a 50Ω ≤-159dBm(6GHz~9GHz), ≤-158dBm(9GHz~14GHz),load, 0dB input attenuation,≤-156dBm(14GHz~20GHz)
average detection, the logarithm of Pre-amplifier OFF:video type, RBW normalized to≤-142dBm(2MHz~2.4GHz),≤-141dBm(2.4GHz~6GHz),
1Hz,+15℃ to +35℃)≤-140dBm(6GHz~9GHz), ≤-138dBm(9GHz~14GHz),≤-138dBm(14GHz~20GHz)
Second Harmonic Distortion(0dB attenuation, -30dBm input≤-70dBc(50MHz~10GHz)
signal, Pre-amplifier OFF)TOI(-15dBm 2-tone signal,100kHz≥+13dBm(50MHz~20GHz)
span,0dB attenuator, Pre-amplifier
OFF)
Image, multiple and out-of-band<-65dBc (10MHz~7.5GHz),<-60dBc (7.5GHz~10.5GHz),
response<-65dBc (10.5GHz~20GHz)(Mixer Level: -10dBm)
Pre-amplifier ON:
Residual Response≤-110dBm (10MHz~3GHz),≤-105dBm (3GHz~9GHz)(RF input; 50 Ω load, input≤-103dBm (9GHz~12GHz),≤-100dBm (12GHz~20GHz)
attenuation: 0dB)
Pre-amplifier OFF:≤-90dBm (10MHz~20GHz)
Absolute Amplitude Accuracy(Frequency :10MHz~20GHz,Attenuation:±1.30 dB(operating temperature: +15℃~+35℃)
10dB,0dBm~-50dBm,Pre-amplifier:
OFF,Resolution bandwidth :1kHz)
SSB Phase Noise(1GHz Carrier,+15℃∼+35℃)

Input Attenuator
Maximum Input Power

Attenuation range: 0~30dB,2dB steps+27dBmCWPower(input
attenuation,pre-amplifier OFF)frequency≥50MHz,≥10dB

Reference Level

Range: -150dBm~+30dBm,minimum 1dB steps
Conversion Uncertainty: ±0.50dB(Reference level: 0dBm~-60dBm)

Detector TypeStandard, Positive peak, Negative peak, Sample, Average, RMS

Dimensions

WeightWorking Temperature
Storage Temperature
Electromagnetic Compatibility

Power Input Requirement316.5mm(W)×236.5mm(H)×75mm(D) (Without
interface plug, the back bracket is closed)
316.5mm(W)×236.5mm(H)×68mm(D) (Without
interface plug, the back bracket is closed)

side

strap

and

side

strap

and

Typical: 3.0kg (without internal battery),3.5kg (with internal battery)-20℃~+55℃(Battery discharge: -20℃~+55℃, Battery charge:+10℃~+45℃)-50℃~+70℃(Storage
temperatureofthebattery:-20℃~+50℃,Storage time:＜1 month)
Conforms to the relevant requirements of item 3.9.1 of GJB
3947A-2009
AC power adapter: input voltage: 100 to 240VAC,50/60Hz
Output voltage: 19VDC,4.7A
Built-in lithium electronic battery: Nominal voltage: 10.8V

Power Consumption

Typical: 22W~28W (Depend on the operation mode)

Battery Operating Time

Typical: 3.5h~4.5h (Depend on the operation mode)

Test Interface

Other Interfaces

Communication and Auxiliary
Interfaces

RF input: N(Female) connector
10MHz reference input/output port: SMA(F)
External trigger input port: SMA(F)GPS antenna port: SMA(F)(option)
IF output port: SMA(F)(option)
Wi-Fi/4G antenna port: SMA(F)(option, The input interface of 4G
antenna is reserved and not supported for now.)
USB interface: 2 USB3.0 A-type interface
1 USB2.0 Type C-type interface
1 USB3.0 B-type interface(reserved)
LAN interface: standard RJ-45 type
Audio phone interface: standard 3.5mm
SD/SIM card: Micro SD card and SIM card slot(The 4G option isreserved)Ordering Information
Main Unit: 4025D Spectrum Analyzer(9kHz~20GHz) Standard Package
No.

Description

Remarks

1

Power line assemblyStandard 3-Phase Power Cord
Power adapter:100~240V 50/60Hz input, 19V,4.7A output
Lithium-ion rechargeable battery

2

Product quick user
guide

Quick start using the instrument

3

Product certificate

Factory Certificate of Conformity

 Option
No.

OptionDescription

14025-0124025-0234025-03

44025-0454025-05

64025-S01

74025-S02

84025-S03

94025-S04

104025-S05

114025-S06

124025-S07

134025-S08144025-S09

Zero Span IF Output

15

4025-S10Time Gated

164025-S11

Directional
OptionFunction

Optional Accessories
English Signs, Keys, Menu
of English Version
User
ManualUser Manual Chinese Version(Chinese)
User Manual (English)

User Manual English Version

Programming Manual
Programming Manual Chinese Version(Chinese)
Programming Manual
Programming Manual English Version(English)CW Power measurement function available
USB CW Power Meter
with external USB continuous wave power
Optionsensor 87230/87231 /87232/87233.
Peak power measurement is available and
USB
Peak
Power
requires the 87234D/E/F/L USB peak/average
Meter Option
power sensor to be used.
Interference Analyzer Provides
waterfall
diagram,
RSSI
Optionmeasurements and more
ChannelScanner To Realize Signal Power Measurement of
OptionMultiple Channels and Frequency
For measuring the radiation intensity of theField Strength Option
electric field of the device under test.
RSSI test and adjacent channel power ratio
test can be done under the outdoor
interference map, and the test results can be
Outdoor Map
marked on the map in real time according totime or distance, to be used with the4025-H01 option.
RSSI and adjacent channel power ratio tests
can be carried out under the indoor map, with
Indoor Map
the results marked on the map by dotting thecorrelation between signal strength and color.
Realize AM, FM and PM modulation signal
Analog Demodulation
analysis and measurement function.
Output IF signal at zero span

Used for time division interference signal
testing
For locating external sources of interference
Analysisor unknown signals, to be used in conjunction
with the 4025-H01 option, the USB electronicNo.

OptionDescription

Function

174025-S12

184025-S13

194025-H01

20

4025-H02

21

4025-H03

22

4025-H04

compass option and the directional antenna
option.
40MHz
Real-time Provide 40 MHz real-time spectrum analysis
Spectrum Analysis
function
Realize continuous sweep of multiple
List Sweep
frequency bands
GPS/Bei
Dou GPS or Bei Dou positioning function can be
Location
realized through the external antenna.
Wi-Fi Communication Wireless communication with external
Optiondevices.
Tie rod aluminium
Tie rod aluminium alloy box
alloy box
Pull-rodtransport
Pull-rod transport box
box

234025-H05

Backpack

Portable Backpack

24

AAL090K-N029

Power Adapter

Power Adapter

25

GSA3SA1

26

GS2040IM

27

GSCAR19V5525100W

28

GSCH4000B

29

Kingston MicroSD
Class10(128G)

30

87230

31

87231

32

87232

33

87233

34

87234D

35

87234E

3687234F

37

87234L38

ZE9080 Antenna
Module A

39

ZE9080 Antenna
Module B

40

ZE9080 Antenna
Module C

Standby battery pack, nominal voltage 10.8V,
9900mAh
Lithium
battery capacity 9900mAh, not suitable for air
rechargeable batterytransport carry-on.
Standby battery pack, nominal voltage 10.8V,
9000mAhIithium-ion
battery capacity 9000mAh, suitable for air
rechargeable batterytransport carry-on.
Car charger with input voltage 12~24V and
VehiclePower
output voltage 19V for powering handheld
Adaptormeasuring instruments.
Smart
Battery
Lithium-ion battery charging standCharging Base
Micro SD Card87230 USB CW Power
Sensor87231 USB CW Power
Sensor87232 USB CW Power
Sensor87233 USB CW Power
Sensor87234D USB Peak/CW Power Sensor
87234E USB Peak/CW Power Sensor
87234F USB Peak/CW Power Sensor
87234L USB Peak/CW Power Sensor

Micro SD card, capacity: 128G.

Frequency range: 9kHz~6GHz, Interface:N(m).
Frequency range: 10MHz~18GHz, Interface:N(m).
Frequency range: 50MHz~26.5GHz, Interface:
3.5mm(m).
Frequency range: 50MHz~40GHz, Interface:
2.4mm(m).
Frequency range: 50MHz~18GHz, Interface:N(m).
Frequency range: 50MHz~26.5GHz, Interface:
3.5mm(m).
Frequency range: 50MHz~40GHz, Interface:
2.4mm(m).
Frequency range: 500MHz~67GHz, Interface:
1.85mm(m).
Frequency range: 9kHz~20MHz, Interface:
ZE9080
Directional N(f).
Antenna A
Recommended for use with the optional
ZE9080 Handle Module
Frequency range: 20MHz~200MHz, Interface:
ZE9080
Directional N(f).
Antenna B
Recommended for use with the optional
ZE9080 Handle Module
ZE9080
Directional Frequency
range:
200MHz~500MHz,
Antenna C
Interface: N(f).

No.

41

42

43

44
45
46

47

48

49

50

51

52

53

54

OptionDescription

Function

Recommended for use with the optional
ZE9080 Handle Module
Frequency range: 500MHz~8GHz, Interface:
ZE9080 Antenna
ZE9080
Directional N(f).
Module D
Antenna D
Recommended for use with the optional
ZE9080 Handle Module.
Frequency range: : 9kHz~8GHz,N(f),ZE9080
Antenna can be used with the ZE9080 Antenna Module
ZE9080 Handle Module
Amplifier
A/B/C/D option, Internal with amplifier andelectronic compass.
Transport case for ZE9080 antenna, to hold
ZE9080 Antenna Pull
ZE9080
Antenna
ZE9080 Antenna Module A/B/C/D and
Rod BoxTransport Box
ZE9080 handheld module.
700MHz~6GHz
Active Log-periodic Antenna, Frequency:
HyperLOG 7060X
Directional Antenna
700MHz~6GHz, Interface: SMA(f).
680MHz~10GHz
Active Log-periodic Antenna , Frequency:
HyperLOG 60100X
Directional Antenna
680MHz~10GHz, Interface: SMA(f).
680MHz~20GHz
Active Log-periodic Antenna , Frequency:
HyperLOG 60200X
Directional Antenna
680MHz~20GHz, Interface: SMA(f).
6GHz
PortableOmni-directional
OmniLOG 70600
Omni-directional
Antenna,Frequency:
680MHz~6GHz,
AntennaInterface: SMA(m).
8GHz
PortableOmni-directional
antenna,
OmniLOG 30800
Omni-directional
Frequency:
300MHz~8GHz,Interface:
Antenna
SMA(m).
700MHz~6GHz
Passive Log-periodic Antenna, Frequency:
HyperLOG 7060
Passive
Directional
700MHz~6GHz, Interface: SMA(f).
Antenna
680MHz~10GHz
Passive Log-periodic Antenna , Frequency:
HyperLOG 60100
Passive
Directional
680MHz~10GHz, Interface: SMA(f)Antenna
680MHz~18GHz
Passive Log-periodic Antenna, Frequency:
HyperLOG 60180
Passive
Directional
680MHz~18GHz, Interface: SMA(f).
Antenna
External USB Electronic Compass can be used
USB Electronic
USB
Electronic
withHyperLOG
7060X,HyperLOG
Compass
Compass
60100X,HyperLOG 60200X,4025-S11 options.
N/SMA-JJ
RF N/SMA(M-M)
RF
coaxialcable,
UF2-SMAMNM-2.0M
Cable(2m)
DC~18GHz,length: 2m
Maximum frequency: 9 GHz, with 1 electric
PBS1
Near-field field probe and 1 each of 6mm, 12mm, 25mm
PBS1
Probe
and 50mm magnetic field probes, Interface:
SMB(m).