GW Instek USG-LF44 RF Signal Generators

Manufacturer: GW Intek
Model: USG-LF44


    Frequency Range: 34.5MHz ~ 4400MHz
    Output Power Range: -30dBm ~ 0dBm
    Continuous Wave Signal Without any Modulation
    Support Fixed Frequency, Frequency Sweep, Frequency Hopping & Power Sweep Mode
    -107dBc/Hz Phase Noise @100kHz Offset
    Frequency Resolution: 10kHz
    PC USB Interface Powered and Controlled
    External PC Software Support Different Operating System
  • GW Instek debuts the brand new USG-Series RF signal generator, which comes with five models to meet users requirements and is a pocket-sized, and USB interface compatible RF signal generator with the frequency range from 35MHz to 4400MHz. The USG-Series provides continuous wave (CW) signal outputs without any signal modulation function. The built-in electronic attenuator of the USG-Series allows an adjustable power range from -30dBm to 0dBm. The USG-Series has several operational modes including fixed frequency, frequency sweep, frequency hopping, and power sweep. The USB-Series RF signal generator, with the frequency bandwidth limitation, provides lower harmonic output performance.

    Figure shows the test result of USG-LF44 simultaneous power sweep and frequency sweep. The test result covers the frequency range from 35MHz to 4400MHz and the power range from -30dBm to 0dBm. The yellow trace illustrates the test result of maximum hold and the pink trace shows the test result of signal output.

    GWINSTEK USG RF Portable Signal Generator Introduction     
    GWINSTEK USG RF Signal Generator PC Application Program Demo     
    Primary RF Software Demo ( USG RF Signal Generator & GSP-730 Spectrum Analyzer)  
    •  A USG CD-ROM provides dedicated PC application programs, which were developed under JAVA software* structure. Users must install JAVA software to use USG PC application programs, which support operating systems such as Windows 2000/XP/Vista/7/8, Linux & Mac OS X through the USB interface.
    • Users can download USG APP to smart phone or tablet with Android 4.0 or above. To operate USG, use USB-OTG connecting cable to connect tablet (or smart phone) and USG. The Android APP application software for the USG signal generator is available on Google Play Store.
    • The USG signal generator can be designated as the tracking generator for GSP-730 spectrum analyzer to conduct measurement functions of scalar network analyzer. A USG CD-ROM provides PC application programs for the Primary RF software. Users can, using a Windows OS computer, control USG and GSP-730 via the Primary RF software. The NI-488.2 software** must be installed first before installing Primary RF software.
     Model USG-LF44 USG-0103 USG-0818 USG-2030  USG-3044
     Frequency Range 34.5 MHz to 4.4 GHz 100 MHz to 300 MHz 800 MHz to 1.8 GHz 2.0 GHz to 3.0 GHz 3.0 GHz to 4.4 GHz
     Output Power  -30 dBm to 0 dBm, in 1 dB steps    
     Internal Reference Frequency 25 MHz , aging ±1 ppm at first year     
     Frequency Accuracy ( 0 dBm Output Level ) ± 100 Hz at 100MHz ± 100 Hz at 100MHz ± 800 Hz at 800MHz ± 2 kHz at 2GHz ± 3 kHz at 3GHz
     Frequency Resolution  10 kHz        
     Output Isolation  ≦ -75 dBc , Output Control On/Off    
     Mode Control Fixed Frequency / Single Sweep / CW Sweep / Hopping / Power sweep    
     Step Dwell  ≦1000 ms in 1 ms steps    
     Frequency Offset  -50 kHz to 50 kHz in 10 kHz steps
     Output Flatness (0 dBm Output Level) -1 dBm to 3.5 dBm, typical -3 dBm to -2 dBm, typical -1 dBm to -0.5 dBm, typical -1 dBm to 0.5 dBm, typical 0 dBm to 3.5 dBm, typical
     Phase noise          
     Carrier frequency fc =1.0GHz fc = 200 MHz fc = 1.3 GHz fc = 1.5 GHz fc = 3.7 GHz
     At 10 kHz offset frequency < -97 dBc/Hz typical -100 dBc/Hz <-100 dbc="" hz="" typical="" span=""> < -97 dBc/Hz, typical <- 93="" dbc="" hz="" typical="" span=""> <- 88="" dbc="" hz="" typical="" span="">
    At 100kHz offset frequency  < -107 dBc/Hz typical -110dBc/Hz <-110 dbc="" hz="" typical="" span=""> <-102 dbc="" hz="" typical="" span=""> <- 100="" dbc="" hz="" typical="" span=""> <- 94="" dbc="" hz="" typical="" span="">
     2nd Harmonics (0 dB Attenuation)   ≦ -15 dBc, typical 34.5 MHz to 2.0 GHz  -45 dBc, typical>100 MHz  -25 dBc, typical>800 MHz    
    ≦ -10 dBc, typical 2.0 GHz to 3.0 GHz      -30 dBc, typical2.0 GHz to 3.0 GHz  
    ≦ -25 dBc, typical 3.0 GHz to 4.4 GHz        -25 dBc, typical3.0 GHz to 4.4 GHz
     3rd Harmonics (0 dB Attenuation)   ≦ -5 dBc, typical 34.5 MHz to 2.0 GHz, -7dBc typical,150MHz  -35 dBc, typical >150 MHz  -25 dBc, typical900MHz  -35 dBc, typical >900 MHz    
    ≦ -20 dBc, typical 2.0 GHz to 3.0 GHz      -55 dBc, typical2.0 GHz to 3.0 GHz  
    ≦ -40 dBc, typical 3.0 GHz to 4.4 GHz        -40 dBc, typical3.0 GHz to 4.4 GHz
     Spurious related to Resolution settings ≦ -30 dBc, typical , Resolution < 1MHz
    ≦ -65 dBc, typical , Resolution ≧ 1MHz     
     Spurious related to the fundamental output ≦ -60 dBc, typical ≦ -60 dBc, typical ≦ -65 dBc, typical ≦ -65 dBc, typical ≦ -65 dBc, typical
     Supported OS  Windows/Linux/Mac/Android    
     Interface USB 2.0     
     Supply Voltage 5 V nominal     
     Current Consumption 200 mA     
     RF Connector Type N-type male     
     Impedance   50 Ohm nominal   
     Output VSWR     < 1.5:1 , Output Level @ -30dBm 
     Maximum permissible DC voltage ±25V     
     Maximum Reverse Power   +30dBm (1W)   
     Electromagnetic compatibility      EN 55011 class A, EN 61326-1 (industrial environment), EN 61326-2-1, EN 61000-4-2, EN 61000-4-3, EN 61000-4-11
     Dimensions & Weight 30mm(W) x 103mm(H) x 30mm(D), Approx. 100g     


    USB cable, CD-ROM with USG software, GSP-730 PrimaryRF software and user manual

    Optional Accessories


    ADP-003, 50 Ohm N type (female) to SMA (female) Adapter
    GTL-303, 50 Ohm SMA RF cable (600mm)


  • Quality Engagement
  • Easy change and return
  • Delivery Avaliable
  • Favorable payment