Zhejiang, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Computer Products, Consumer Electronics, Electrical & Electronics, Lights & Lighting, ...

RF Signal Generator, Generator, Frequency Generator manufacturer / supplier in China, offering Techwin Radio Frequency Generator Low Phase Noise RF Signal Generator, 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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Techwin Radio Frequency Generator Low Phase Noise RF Signal Generator

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Min. Order: 1 Piece
Production Capacity: 200 Sets Per Week
Transport Package: Standard Carton Package
Payment Terms: L/C, T/T, Western Union
Place of Origin: Zhejiang, China (Mainland)
Brand Name: Techwin
Model Number: RF Signal Generator 4100
Specification: CE
Trademark: Techwin
Origin: Hangzhou, China

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Basic Info

Model NO.: RF Signal Generator 4100
HS Code: 9013809000

Product Description

RF Signal Generators TW4100
250 kHz-3GHz (TW4100A), 250 kHz-6GHz (TW4100C)
Product Description
Product Overview:
RF Signal Generators TW4100 are completely new products designed and developed for communication applications by using the latest technology, covering all commonly-used ranges of radio frequency. Designed with modular structure, all English interfaces, large LCD menu control, extremely low phase noise of output signal, high frequency resolution and accuracy and wide output dynamic range, they are available in abundant analog modulation, digital modulation and program control functions etc. This product can provide complex high-performance analogue signals for testing on communication and radar equipment in product research & development, production, detection and maintenance, etc.
Main Features:
Extremely low phase noise and high pure spectrum
Power output of +7dBm~-135dBm
Available in abundant analogy modulation and digital modulation functions
Optional 1Hz~1MHz low frequency signal generator
Chinese/English operation interfaces
List sweep and step sweep
Update with USB Disk
Large LCD operation interface
Designed with completely independent software, RF Signal Generator TW4100 uses large screen and English operation interfaces which offers a panoramic view of the current state. The operation interface can be set in English according to different purposes and occasions for your convenience.
Extremely low phase noise and high pure spectrum
RF Signal Generator TW4100provides good close-to-carrier phase noise (-124dBc/Hz, measured at 1GHz and 20kHz) and excellent spectrum purity, which can satisfy the test requirements for pure radio frequency and stimulus signals in radar system development and satellite communications.
 Update with USB Disk
With the wide application of USB Disk to modern life, RF Signal Generator TW4100 provides a USB interface available for smart software update and data backup through which you can easily use a USB disk to update software and maintain the instrument, thus this function is simple and convenient and practical.
 Expansion of rear panel function
RF Signal Generator TW4100 provides RS232 interface, GPIB interface, LAN interface, base-band output interface etc. additional expansion interfaces for system building during which LAN interface can be used to achieve the functions of remote control and network update, etc. for user's convenience.
Typical Applications:
Relying on its powerful functions, Radio Frequency Signal Generator TW4100 has become widely-used modern intelligent radio frequency measuring instrument, which can provide complex analogy signal for testing on dynamic range, sensibility, adjacent channel property, digital modulation performance etc. internal and external channel's performance index of high-performance transmitter and receiver of various radar and communication equipments as well as local oscillator substitution, distortion test, phase noise test, etc. fields.


Technical Specifications:


TW4100A: 250kHz~3GHz TW4100C: 250kHz~6GHz



250kHz ≤ f ≤ 250MHz


250MHz <f ≤ 500MHz


500MHz <f ≤ 1GHz


1 GHz <f ≤ 2 GHz


2 GHz <f ≤ 3GHz


3 GHz <f ≤ 6GHz


Frequency Resolution

0.01Hz (0.001Hz is also available)

Timebase Aging Rate (typical value)

1×10-9/day (after 7 days of continuous poweron)

Sweep Mode

Step Sweep, List Sweep and Power Sweep


< -30dBc




< -62dBc

SSB Phase Noise (20kHz frequency offset)


<-127 dBc/Hz


<-121 dBc/Hz


<-115 dBc/Hz


<-110 dBc/Hz


<-109 dBc/Hz


<-104 dBc/Hz

SSB Phase Noise
(dBc/Hz, adding high pure option)

         Freq. offset





250kHz ≤ f ≤ 250MHz





250MHz <f ≤ 500MHz





500MHz <f ≤ 1GHz





1 GHz <f ≤ 2 GHz





2 GHz <f ≤ 3GHz





3 GHz <f ≤ 6GHz





Residual FM (typical value)

< N×1Hz


-20dBm~ +7dBm
Adding option 1: -120dBm~+7dBm(-135dBm is also available)

Power Accuracy
(25ºC ±10ºC)

When option 1 programmable step attenuator is not available (-10~-20dBm is typical value)





When option 1 programmable step attenuator is available (≤ -60dBm is typical value)







Modulation Performance


Pulse modulation on/off ratio


Pulse modulation rise/fall time


Internally leveled min. pulse width


Level hold (ALC is off)


Amplitude Modulation5

Modulation mode: exponential mode, linear mode
Modulation rate (3 dB bandwidth, 30% modulation depth): DC~100kHz
Max. amplitude modulation depth: 90%
Accuracy (1kHz modulation rate, 300Hz~3kHz demodulation bandwidth):
±(6%×set value+1%)
Distortion (1kHz modulation rate, 30% depth, linear mode, total harmonic distortion): <1.5%

Frequency Modulation5

Modulation rate (3 dB bandwidth, N×100kHz frequency modulation offset): DC~1MHz
Max. frequency modulation offset (typical value): N×1MHz
Accuracy (1kHz modulation rate, 300Hz~3kHz demodulation bandwidth, frequency modulation offset <N×100kHz, except residual frequency modulation):
±(5%×set value +20Hz)
Distortion (1kHz modulation rate, N×100kHz frequency modulation offset, total harmonic distortion): <1%


Modulation rate (3 dB bandwidth, 3rad phase modulation offset): DC~100kHz
Max. phase modulation offset (typical value): N×10rad
Accuracy (1kHz modulation rate, 300Hz~3kHz demodulation bandwidth, phase modulation offset <N×10rad, except residual phase modulation):
±(5%×set value+0.01rad)
Distortion (1kHzmodulation rate, 3rad phase modulation offset, total harmonic distortion): <1%

Modulation Performance

Vector Modulation Module4
(Vector Modulation Module must be configured)

Operating mode: external I/Q input
Input connector: BNC (female)
Input impedance: 50Ω
Frequency modulation range (typical value, 3dB point): DC~10MHz
Full scale input: 
Carrier suppression (typical value, modulation rate 10kHz): <-40dBc
EVM(typical value, 4Msps, QPSK modulation mode, Nyquist filter, α=0.3): <3%

Base-band Signal Generator
(Option 3 is configured)

Max. code rate: 10ksps~10Msps(MSK;2FSK Max. code rate 2Msps)
Modulation format: BPSK,QPSK,OQPSK,8PSK,MSK,16QAM,2FSK

Internal Modulation Signal Generator

Function generator provides: amplitude modulation, frequency/phase modulation signals
Sine wave, square wave, triangular wave, ramp wave, noise, dual-sine, swept-sine
frequency range:
Sine wave, dual-sine, swept-sine: 1Hz~1MHz
Square wave, triangular wave, ramp wave: 1Hz~100kHz
Frequency resolution: 1Hz
Pulse modulation signal:
Pulse width: 40ns~(42s-20ns)
Pulse period: 100ns~42s
Resolution: 20ns

RF OutputPort

Type N (female)



Operation Interface




Dimension (W×H×L)


Max. Weight

Approx. 20kg

Environmental Adaptation

Operating temp.: 0ºC~+40ºC
Storage temp.: -30ºC~ +70ºC(Low temperature is subject to the LCD)
Relative humidity: 5%-95%, ±5%RH


1. 115dB programmable step attenuator
3. Base-band signal generator

2. Vector modulation module
4. High pure option

Ordering Information:
Main Unit:
RF Signal Generator TW4100
Standard Configuration




Standard Accessories

Power Cord


User's Guide








115dB programmable step attenuator


Expand power


Vector modulation module


Generate vector modulation signal


Base-band signal generator


With internal base-band signal generation function


High pure option


Reduce phase noise and increase spectrum purity

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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