Signal and Tracking Generator USG Series USER MANUAL REVISION 1.
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Table Of Contents Table of Contents SAFETY INSTRUCTIONS ................................................... 2 GETTING STARTED ........................................................... 5 USG Series Introduction ............................. 7 Appearance ................................................. 9 First Time Use Instructions ...................... 16 OPERATION .................................................................... 22 Signal Generator Function ........................
USG Series User Manual SAFETY INSTRUCTIONS This chapter contains important safety instructions that you must follow during operation and storage. Read the following before any operation to insure your safety and to keep the instrument in the best possible condition. Safety Symbols These safety symbols may appear in this manual or on the instrument. WARNING Warning: Identifies conditions or practices that could result in injury or loss of life.
SAFETY INSTRUCTIONS Safety Guidelines General Guideline CAUTION Power Supply Do not place any heavy object on the instrument. Avoid severe impact or rough handling that leads to damaging the instrument. Do not discharge static electricity to the instrument. Use only mating connectors, not bare wires, for the terminals. Do not disassemble the instrument unless you are qualified. Ensure reverse power to the USG output terminal does not exceed +30dBm.
USG Series User Manual Storage environment Location: Indoor Temperature: -20°C to 60°C; 65°C @ 70% RH Disposal Do not dispose this instrument as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased. Please make sure discarded electrical waste is properly recycled to reduce environmental impact.
GETTING STARTED GETTING STARTED This chapter provides a brief overview of the USB Signal Generator (hereafter referred to as „USG‟), the package contents, instructions for first time use and an introduction to the signal generator display and tracking generator function. USG Series Introduction .................................................... 7 Series lineup ............................................... 7 Main Features .............................................
USG Series User Manual Tracking Generator Software Installation (Primary RF) .............................................
GETTING STARTED USG Series Introduction The USG series signal and tracking generators can be operated as standalone continuous wave generators, or when paired to a PC and the GSP-730 spectrum analyzer, they can be used as tracking generators. As continuous wave generators, the USG can be configured using any java supported PC or an Android device. The device can generate continuous wave, sweep, power sweep and frequency hopping waveforms.
USG Series User Manual of control devices: Any java-enabled PC: Windows, Mac or Linux PCs. Any android device that supports USB OTG (USB On The Go) operation (via Google Play). Continuous wave, sweep wave, frequency hopping wave, power sweep wave.
GETTING STARTED Appearance Front Face RF output terminal RF Output Terminal RF output port. Accepts RF outputs. Output: 0 ~ -30dBm Input impedance: 50Ω N-type: male Rear Face Mini USB port Mini USB port Used to connect to a PC or Android device for configuration or control. When connected to power, the mini USB port will be lit red.
USG Series User Manual Signal Generator Display - Java Function Mode Power Sweep Power indicator Offset and time dwell settings Step Size Frequency settings System infomation Start key Frequency status bar Power Indicator Turns the RF output on or off. Function Mode Chooses the type of function to be performed by the USG: Continuous Sweep, Single Sweep, Single Point or Hopping Power Sweep Sets the Start and Stop power level settings.
GETTING STARTED Frequency Settings Sets the basic start and stop frequency parameter settings. It also displays the instantaneous (current) output frequency, as shown below. Start frequency Stop frequency Current frequency Frequency Status When the output is on, the point on the frequency Bar status bar indicates the instantaneous frequency that is being output. When the output is off, the status bar can set the start and stop frequencies. Start key Pressing Start will output the selected function.
USG Series User Manual Signal Generator Display – Android App Main panel To Frequency Setting panel About Power indicator Function settings Frequency range settings System infomation To Main panel Frequency Setting panel Start key Frequency status bar Frequency offset settings Time Dwell settings Power sweep settings Step size settings Power Indicator Turns the RF output on or off. System Information The system information states the serial number, model and frequency range specifications.
GETTING STARTED Function Settings Chooses the type of function to be performed by the USG: Continuous Sweep, Single Sweep, Single Point or Hopping. Frequency Range Sets the basic start and stop frequency parameter Settings settings. It also displays the instantaneous (current) output frequency, as shown below. Start frequency Stop frequency Actual frequency Frequency Status When the output is on, the point on the frequency Bar status bar indicates the instantaneous frequency that is being output.
USG Series User Manual Time Dwell Settings The time dwell settings determine how long the signal will stay (dwell) at each frequency point. Step Size Settings The User Step and Point (inversely related) set the step resolution of the single and continuous sweep functions in hertz and number of points, respectively.
GETTING STARTED Primary RF – Tracking Generator Function Point Mark GSP Settings USG Power Level Normalize Settings Single Sweep Continuous Sweep Stop Point Sets the number of frequency points for sweep. Mark Sets the marker frequency. GSP Settings Sets the reference level, scale and start and stop frequencies. Power Level Sets the USG output power level. Normalize Settings Normalizes the USG output. Single Sweep Outputs a single sweep. Continuous Sweep Outputs a continuous sweep.
USG Series User Manual First Time Use Instructions The following instructions will go over all installation instructions that are required to operate the USG from a PC or from an android device. Installing the USG USB Driver Description The USG connects via USB to a PC using a virtual COM port driver. For Linux and OS X systems, the USG device is recognized as a virtual COM port device automatically. A device driver does not need to be installed for these systems.
GETTING STARTED 3. From the device tree go to: Other devices>USB Serial Port The yellow error sign indicates that a driver has not been installed. 4. Right-click USB Serial Port and select Update Driver Software. 5. Select Browse my computer for driver software when prompted. Manually select the USG Driver from the User Manual CD when prompted. If the Windows Security pop-up appears, choose Install this driver software anyway.
USG Series User Manual 6. The USG will now become available in the device tree under PORTS (COM & LPT). Disabling the Device Driver Signature Enforcement in Windows 8 Description Note Steps To install the USG USB driver on Windows 8 systems, you must first disable “Device driver signature enforcement”. This procedure is shown below. Applicable to Windows 8 only! 1.
GETTING STARTED Installing the USG Software from Google Play The USG software for controlling the USG as a signal generator can be found on the Google Play store. Description Supported for Android 4.0 and above only. Note Steps 1. Open Google Play on your Android device. 2. Enter USB Signal Generator in the Google Play search bar. 3. Install the USB Signal generator mobile app (GW Instek.Inc.) 4. The USG app will now be available in your App Draw.
USG Series User Manual Tracking Generator Software Installation (Primary RF) Description Primary RF is used in conjunction with the USG as a tracking generator for the GSP-730. Note: Requirements Only Windows operating systems (Windows XP, Vista, 7, 8) can be used with the Primary RF software. Note: USB Drivers Before the tracking generator software can be installed, the USG USB driver must first be installed. See page 16 for details.
GETTING STARTED 3. Primary RF will now be available in the Windows Start Menu.
USG Series User Manual OPERATION Signal Generator Function ............................................... 23 Setup ~ PC ................................................ 23 Setup ~ Android Device ............................ 24 Frequency Function Mode ......................... 26 Selecting the Frequency ............................ 27 Selecting the Frequency Step Size ............. 28 Time Dwell ................................................ 29 Frequency Offset .......................................
OPERATION Signal Generator Function The signal generator function can be controlled with PC using a java program (using Windows, Mac OS X or Linux operating systems) or with an Android device. Setup ~ PC Description The following chapter will show how to run the Java based application and the how to connect the USG to the PC. Any Windows, Mac OS X or Linux PC that can install the Java runtime library can be used to operate the signal generator function.
USG Series User Manual 3. Open USG_GUI_v1001.jar file (accessible on the User Manual CD). The USG_GUI_v1001 file doesn‟t need to be installed. 4. If it is not already, turn the RF power on for the USG. RF Power Setup ~ Android Device Description Note Connection The following chapter will show how to start up and connect the USG to an Android device. Install the USB signal generator software before connecting the USB to your Android device. See page 18. 1.
OPERATION 4. By default, the USG app should load up when the Android device is connected to the USG. If the app does not automatically load up, go to the app drawer and run the USB signal generator app. 5. If it is not already, turn the RF power on for the USG. Note If the USB cable is not connected properly, the system information in the Main panel will show “NONE”. In this case, re-insert the USB cable and the OTG cable.
USG Series User Manual Frequency Function Mode Description Java App Display Android App Display Steps There are four different frequency modes that can be selected. Function Mode Function Mode 1.
OPERATION Selecting the Frequency Description Java App Display Sets the Start and Stop frequency for the USG. Current frequency Start frequency Stop frequency Frequency slider Current frequency Android App Display Current frequency Start frequency Stop frequency Current frequency Frequency slider Steps 1. At the bottom of the screen set the Start and Stop frequencies for the continuous sweep, single sweep and hopping frequency modes.
USG Series User Manual Selecting the Frequency Step Size The step size settings determine the number of frequency points for the sweep modes. Description Java App Display Step size Number of points Step size Android App Display Number of points Steps 1. To set the span of each step of a sweep, press User Step. 2. To set the number of discrete steps in a sweep, press Point. 28 The number or points or the frequency span of each step depends on the USG model. User Step range 0.
OPERATION Time Dwell The Time Dwell setting determines the amount of time between each point in a sweep. Description Java App Display Time Dwell Android App Display Time Dwell Steps 1. Press Time Dwell to set the amount of time between each step in milliseconds. The Time Dwell setting range depends on the on the USG model. Time Dwell Note 1ms~ 1000ms The minimum step time is automatically set by the PC software. A 1ms Time Dwell can only be achieved with a fast system.
USG Series User Manual Frequency Offset Description The Frequency Offset setting will offset the frequency by ±0.05 MHz. Java App Display Freq Offset Android App Display Frequency Offset Steps 1. Press Freq Offset to set an offset to the frequency settings. Offset 30 ± 0.
OPERATION Selecting the Power Sweep Description Sets the power level for the start and stop frequencies. For the sweep functions, sets the power level from the Start frequency to the Stop frequency. For the Single Point function, the From setting sets the initial power level and the To setting, if needed, sets the final power level. For the Hopping function, the From setting sets the power level of the Start Frequency and the To setting set the power level at the Stop frequency.
USG Series User Manual Steps 1. To set the initial power level, press From. 2. To set the final power level press To. If you only want one power level, only set the From setting. Power level range 0dBm ~ -30dBm Turning the Output On Steps After all the settings have been set press Start to turn on the output on. For the single sweep function, press Start for each single sweep.
OPERATION Tracking Generator Function (Primary RF Software) The Primary RF software can be used as a tracking generator for the GSP-730 to track the frequency response of a DUT. Note Please note that the Primary RF software has multiple functions and can be used for purposes other than as tracking generator software for the GSP-730. The other software functions are beyond the scope of this manual and will not be detailed.
USG Series User Manual Tracking Generator Setup Description Operation The section will describe how to use the USG as a tracking generator for the GSP-730. 1. Launch PrimaryRF. 2. Click on the large GSP-730 button at the top of the window. The spectrum analyzer settings will be shown* when the connection to the GSP-730 is working.
OPERATION 3. Press Action(A) and select USG as TG for GSP730. A new window will open for the tracking generator options. 4. Press Point and set the number of frequency points that will be used in the sweep. 5. Press Mark and set the marker frequency. The marker frequency and amplitude will be shown at the top of the grid.
USG Series User Manual 6. Under the GSP-730 panel set the basic spectrum analyzer settings: Ref.Level: -40 ~ 20 dBm 1~10 Start frequency: Dependent on the connected USG model Stop Frequency: Dependent on the connected USG model Scale: 7. Set the USG power level: Power Level: 0 ~ -30 dBm Normalizing the Tracking Generator Description Operation 36 The tracking generator should first be normalized before a DUT is connected to the USG. 1. Setup Primary RF as shown above.
OPERATION 2. Press Single Sweep and perform a single sweep. It may take some time to complete a full sweep, depending on the fixed RBW (1MHz) and span 100MHz settings. The Normalize panel will be selectable after the first sweep is performed. 3. Press Normalize after a full sweep has been performed. The Normalize radio button will then automatically be set to ON. This will normalize the USG output for the Primary RF software. 4. Set the normalized amplitude level. Normalize: 0 ~ -30dBm.
USG Series User Manual Note Before performing normalization, make sure the USG has been on for at least 30 minutes to eliminate drift from effecting the normalization. Using the Tracking Generator Description After normalization is performed, the USG can be used to measure the frequency response of a DUT. DUT Operation 1. Remove the USG from the GSP-730 and put the DUT between the USG and the GSP-730 RF ports. 2. Press Sweep or Continuous sweep to get the frequency response of the DUT.
OPERATION Save Results - CSV Description The spectrum results on GSP-730 can be saved as a CSV file. CSV File Format Center frequency Point number Operation Amplitude 1. Perform either a sweep or a continuous sweep, as shown above. See page 38 for details. 2. After the sweep has completed, press the disk drive icon on the top left-hand side. Save icon 3. A pop-up window will now appear. Choose a file name and directory and select Save.
USG Series User Manual Save Results - Print Description The spectrum results on the GSP-730 can be saved as a PDF or printed. Print Format Results are printed in an inverted color format. Operation 1. Perform either a sweep or a continuous sweep, as shown above. See page 38 for details. 2. After the sweep has completed, press the print icon on the top left-hand side. Print icon 3. A pop-up window will now appear. Choose a printer or choose to save as a PDF. 4. Press Print to print the results.
FAQ FAQ • The USG will not connect to the PC. • Primary RF will not allow me to connect to the GSP-730. • The performance does not match the specification. The USG will not connect to the PC. If you are running a Windows system, make sure that the USG USB driver has been installed correctly, see page 16 for details. If you are running Windows 8, please make sure that “Device driver signature enforcement” is disabled before installing the driver, see page 18 for details.
USG Series User Manual APPENDIX USG Specifications The specifications apply when the USG is powered on for at least 30 minutes to warm-up to a temperature of 20˚C to 30˚C, unless specified otherwise. USG-LF44 Frequency Range Output Power Internal Reference Frequency Accuracy Resolution Output Control On / Off Isolation Mode Control Step Dwell Frequency Offset Amplitude Absolute Accuracy Output Flatness Phase noise 34.5 MHz to 4.
APPENDIX 3rd Harmonics ≤ -5 dBc, typical ≤ -20 dBc, typical ≤ -40 dBc, typical Spurious related to Resolution settings (Single Point Mode) Spurious related to the fundamental output (Single Point Mode) ≤ -30 dBc, typical ≤ -65 dBc, typical 0 dB Attenuation 34.5 MHz to 2.0 GHz, fundamental 2.0 GHz to 3.0 GHz, fundamental 3.0 GHz to 4.
USG Series User Manual USG-0818 Frequency Range Output Power Internal Reference Frequency Accuracy Resolution Output Control On / Off Isolation Mode Control Step Dwell Frequency Offset Amplitude Absolute Accuracy Output Flatness Phase noise 2nd Harmonics 3rd Harmonics Spurious related to Resolution settings (Single Point Mode) Spurious related to the fundamental output (Single Point Mode) 800 MHz to 1.
APPENDIX Amplitude Absolute Accuracy Output Flatness Phase noise 0 dBm ± 1 dB typical at 2500 MHz, 0 dBm Output ± 1 dB, ref. to 2500MHz < -93 dBc/Hz < -100 dBc/Hz 2nd Harmonics ≤ -30 dBc, typical 3rd Harmonics ≤ -45 dBc, typical Spurious related to Resolution settings (Single Point Mode) Spurious related to the fundamental output (Single Point Mode) ≤ -30 dBc, typical ≤ -65 dBc, typical at 0 dBm Output 10 kHz offset @ 2.5 GHz 100 kHz offset @ 2.5 GHz 0 dB Attenuation 2.0 GHz to 3.
USG Series User Manual Spurious related to Resolution settings (Single Point Mode) Spurious related to the fundamental output (Single Point Mode) ≤ -30 dBc, typical ≤ -65 dBc, typical Resolution < 1MHz Resolution ≥ 1MHz ≤ -65 dBc, typical *: Minimum step depands on the computer being used. This min. step will be automatically adjusted by the PC software. 1ms is achieved on a faster system. Common Specifications Software for PC: a. Primary RF supports operating system: Windows 2000/XP/Vista/7/8 b.
APPENDIX USG Dimensions 29.5 27.8 Scale :mm 20.8 20.8 102.4 102.
USG Series User Manual Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. No. 7-1, Jhongsing Rd, Tucheng Dist., New Taipei City 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No. 69 Lushan Road, Suzhou New District Jiangsu, China.
INDEX INDEX Accessories ................................... 8 Caution symbol ............................ 2 Cleaning the instrument ............. 3 Declaration of conformity ......... 48 Display diagram Android .......................................... 12 Java ................................................. 10 Primary RF Tracking generator ...........................15 Disposal instructions ................... 4 Disposal symbol ........................... 2 Environment Safety instruction ..............
