Zhejiang, China
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Computer Products, Consumer Electronics, Electrical & Electronics, Lights & Lighting, ...

Spectrum Analyzer, Anritsu Spectrum Analyzer, Tektronix Spectrum an manufacturer / supplier in China, offering Spectrum Analyzer Similar with Anritsu Spectrum Analyzer, Tektronix Spectrum Analyzer, Techwin 300 Times Magnifacation Fusion Splicer Kit Tcw-605 Fiber Optics, Techwin M200 OTDR Optical Tester Tw2100e with Accurate Positioning of Fault Point and so on.

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Spectrum Analyzer Similar with Anritsu Spectrum Analyzer, Tektronix Spectrum Analyzer

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Min. Order: 1 Piece
Production Capacity: 200 Sets Per Week
Transport Package: Standard Cartoon Package
Payment Terms: L/C, T/T, Western Union
Product Name: Spectrum Analyzer Tw4900
Place of Origin: Zhejiang, China (Mainland)
Brand Name: Techwin
Advantages: Broad Bandwidth, High Solution, High D
Main Features: Flexible Analog and Digital Output
Frequency Extension: up to 325GHz (Options)

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Basic Info

Model NO.: Spectrum Analyzer TW4900
Measurement Sensitivity: 50Hz: -127dBm/Hz
Typical Applications: Comprehensive Assessment of
Counting Resolution: 1MHz
The Best Measurement Sensitivity: -152dBm/Hz
Trademark: Techwin
Specification: CE
Origin: Hangzhou, China
HS Code: 9031801000

Product Description

Spectrum Analyzer TW4900

 Spectrum Analyzer Similar with Anritsu Spectrum Analyzer, Tektronix Spectrum Analyzer
Product Description
Product Overview:
Spectrum Analyzer TW4900 has the advantages of broad bandwidth, high solution, high dynamic range, high precision, low phase noise and fast measurement speed. TW4900 can provide the high performance services such as high sensitivity spectrum analysis, power analysis, analog demodulation test, multi-domain analysis, pulse parameter analysis, audio analysis, phase noise testing, millimeter wave frequency extension, noise figure testing and USB power meter.
TW4900 use the technology of modular frequency channel and all digital IF to form a high open testing platform. We can choose the different options to improve the testing performance of TW4900, and built test system or secondary development by a variety of digital and analog signal output interface of TW4900.
TW4900 has a wide range of applications as follows: aviation, aerospace, communication, radar and navigation.
Main Features:
Broad frequency bandwidth range
200MHz analysis bandwidth
Excellent testing performance
Full spectrum analysis
Multi-domain analysis and signal playback
Plentiful function option
Flexible analog and digital output interface
Convenient operating characteristics
Broad frequency bandwidth range
3Hz-50GHz frequency bandwidth range
9 kinds of Optional configuration of frequency bands              
low frequency (<4GHz) or full-band preamplifier
Frequency extension up to 325GHz (options)
200MHz analysis bandwidth
Flexible Bandwidth to choose from 10Hz to 200MHz
10MHz standard analysis bandwidth (40MHz/200MHz, options)
64M sample memory depth (256M, options)
 Seamless capture time can be up to a few hours from 1.28 seconds
Excellent testing performance
The best measurement sensitivity: -152dBm/Hz
Measurement sensitivity at 50Hz: -127dBm/Hz
Phase noise: -115dBc/Hz carrier 1GHz @ 10kHz offset
All digital IF design
The best measurement                         Excellent phase noise
The minimum non-zero span sweep time: 1ms
Fastest scan speed: 90times/sec
The low-frequency transducer frequency time: 50ms (frequency <4GHz)
Trace can choose detection mode independently
Network programmable
Full spectrum analysis
Continuous scanning and FFT step scan
Fastest sweep time of zero scan: 1μs
Counting Resolution: 1mHz
Scan Points: 101~30001
Up to six tracks
6 kinds of detection methods, three kinds of average type
Support time gate measurement
Occupied bandwidth, channel power, adjacent channel power testing
Statistical power, burst power, harmonic distortion, third-order inter
modulation, spurious emission testing
Full spectrum analysis
Multi-domain analysis and signal playback
Display multi-domain parameter of spectrum, instantaneous frequency / amplitude / phase, chromatograms
Chromatogram display for the analysis of signal change with time
Instantaneous parameter display for the analysis of pulse modulation
signal parameters.
Seamless capture data storage up to 2GB
Support CSV, DAT storage file format
Support file playback signal analysis at different time.
Support communication signal modulation recognition (Option)
Signal playback     List sweep of frequency    LFM signal playback
Plentiful function option
Phase noise analysis
Analog demodulation analysis
Pulse parameter analysis
Audio analysis
 Frequency extension
Modulation Recognition
375 MHz IF export
Flexible analog and digital output interface
 10MHz~140MHz variable IF output
Demodulated output, support AM / FM demodulation and IQ demodulation
Detection output, the output video signal scanning synchronization
Digital signal output,1X or 4X fiber output channel, provides broadband IQ data of real-time recording from the interface
External 1.5TB~12TB data logger, SSD and HDD two media types
TW4900 Signal output interface
TW4900 External data logger
Convenient operating characteristics
English language
 Humane automatic tuning and automatic calibration function
 one-button quick measurement
USB,LAN,GPIB,K/M output interface
Resolution: 1024*768,170 degree viewing angle
Typical Applications:
Comprehensive assessment of the performance of electronic systems:TW4900 has a wide range of applications of comprehensive assessment of the performance of radar and communication. Providing high sensitivity, wide dynamic range, high precision and high efficiency solution for testing broadband signals.
Transmitter and receiver testing and diagnosis:plentiful functions of Spectrum analysis, power measurement module, multi-domain analysis, phase noise testing for the transmitter and receiver testing and diagnosis.



TW4900A/TW4900B/ TW4900C/TW4900D/TW4900E/





Frequency accuracy: ±(last calibration data× aging rate+temperature stability+calibration accuracy)
Aging rate:      ± 1´10-9/day ,± 1´10-7/year
Temperature stability:  ± 1´10-8(20°C~ 30°C)    ± 5´10-8(0°C~ 55°C)
Calibration accuracy:   ± 7 ´10-8

Frequency readout accuracy

±(readout× frequency reference error+0.25% span+5% resolution bandwidth+2Hz+0.5 horizontal resolution)
*:horizontal resolution = span/(sweep points -1)


±(Frequency read out× frequency reference error+0.1Hz)


Accuracy:±(0.2%×span+span/(sweep point number-1))

Sweep time

(Bandwidth ≥10Hz):    1ms~4000s
(Bandwidth =0Hz):    1us~6000s

Resolution bandwidth

Range: 1Hz~3MHz (10% step),4,5,6,8MHz
Conversion Uncertainty: £± 0.5dB

Video bandwidth

1Hz~3MHz (10% step),4,5,6,8MHz

Signal analysis Bandwidth


Memory depth

64MSamples(extend 256MSamples)


Free, power, video, external level (front panel), external level (rear panel), burst power

Detection type

Normal, positive peak, negative peak, sampling, average, root mean square

Average type

Video average, Power average, Voltage average

Sideband noise

< -91dBc/Hz     100Hz
< -105dBc/Hz   1kHz
< -115dBc/Hz   10kHz
< -117dBc/Hz   100kHz

Residual FM

< 1Hz ×N(N is harmonic number)

Average noise level

-140dBm/Hz           10MHz~200MHz
-152dBm/Hz           200MHz~1GHz
-150dBm/Hz           1GHz~3GHz
-147dBm/Hz         3GHz~4GHz
-144dBm/Hz           4GHz~9GHz
-140dBm/Hz           9GHz~18GHz
-138dBm/Hz           18GHz~26.5GHz
-130dBm/Hz           26.5GHz~40GHz
-127dBm/Hz           40GHz~50GHz

Frequency response and absolute amplitude accuracy(10dB attenuation,
20°C ~30°C)

Frequency response:
<±1.0dB    3Hz~4GHz
<±2.0dB    4~9GHz
<±2.0dB    9~18GHz
<±3.0dB    18~26.5GHz
<±3.5dB    26.5~50GHz
absolute amplitude accuracy:
±0.3dB                 300MHz
±(0.3dB+frequency response)   

1dB gain compression point
(mixer input level)

0dBm     20MHz~4GHz
3dBm     4GHz~9GHz
0dBm     9GHz~50GHz

TOI distortion
(mixer level -30dBm)

< -84dBc   10MHz ~ 4GHz
< -89dBc   4GHz ~ 9GHz
< -84dBc   9GHz ~ 50GHz

Remaining response

< -90dBm   1MHz~50GHz

Test speed

Local measurement update rate:90 times/sec
Center frequency tuning and conversion rates:
50ms       20Hz~4GHz
85ms       4GHz~26.5GHz
120ms     26.5GHz~50GHz


width× height× depth= 498mm×192mm×532mm(Including handles, feet, foot)
width× height× depth= 426mm×177mm×460mm(Including handles, feet, foot)


About 25kg

Input connector

TW4900/ TW4900F/ TW4900G:2.4mm(male),impedance 50ohm;
TW4900A/ TW4900B/ TW4900C/ TW4900D/ TW4900E:N: type(female),impedance 50ohm

Packaging & Shipping

Packaging Details:
Standard Export Carton
Delivery Detail:3~5 days after payment

Our Services
Techwin has always provided excellent and practical fiber optic solutions for the industry's needs, and we continue this tradition today. Our high quality fiber test equipment  and innovative reporting software provide the best return on investment in the industry, by lowering overall project cost, and improving customer confidence.
Company Information
Techwin (China) Industry Co., Ltd was established in 1998,focusing on Cable and Antenna Analyzer, Vector Signal Generator, Synthesized Signal Generators, Vector Network Analyzer, Spectrum Analyzer,Fusion Splicer, OTDR, Optical Fiber Power Meter,Fiber Light Source, Cable Fault Locator, Optical Fiber Identifier,Visual Fault Locator,Optical Fiber Talk Set, PON Power Meter, Optical Variable Attenuator,Optical Tool Kit,PLC Splitter,Fiber Coupler etc.Our products and Service are exported to worldwide(More than 90 Countries and Regions) and we create USD10,000,000 for our annual sales,and continue the rapid growth all the time.
Why Choose Us
Currently, communication industry is characterized by increasingly broad deployment of what was once considered a specialist technology. So it is increasingly important that fiber optic equipment is versatile, economic, reliable and also very easy to use. We also provide professional technical consultation and recommend suitable solutions for your demand and requirement. Therefore, Techwin Industry is the perfect source for your communication solution.

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