GW Instek USG-LF44 User manual

Signal and Tracking Generator
USG Series
USER MANUAL
REVISION 1.1 January 2014
ISO-9001 CERTIFIED MANUFACTURER

This manual contains proprietary information, which is protected by
copyright. All rights are reserved. No part of this manual may be
photocopied, reproduced or translated to another language without
prior written consent of Good Will company.
The information in this manual was correct at the time of printing.
However, Good Will continues to improve products and reserves the
rights to change specification, equipment, and maintenance
procedures at any time without notice.
Good Will Instrument Co., Ltd.
No. 7-1, Jhongsing Rd., Tucheng Dist., New Taipei City 236, Taiwan.

Table Of Contents
1
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 ........................23
Tracking Generator Function (Primary RF
Software) ..................................................33
FAQ ................................................................................ 41
APPENDIX ...................................................................... 42
USG Specifications ...................................42
USG Dimensions ......................................47
Declaration of Conformity .........................48
INDEX............................................................................. 49

USG Series User Manual
2
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.
CAUTION
Caution: Identifies conditions or practices that
could result in damage to the instrument or to
other properties.
DANGER High Voltage
Attention Refer to the Manual
Earth (ground) Terminal
Frame or Chassis Terminal
Do not dispose electronic equipment as unsorted
municipal waste. Please use a separate collection
facility or contact the supplier from which this
instrument was purchased.

SAFETY INSTRUCTIONS
3
Safety Guidelines
General
Guideline
CAUTION
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.
Ensure the DC voltage connected to the USG
output terminal does not exceed beyond the
range of -25Vdc to +25Vdc.
Power Supply
WARNING
5V DC (USB power)
Cleaning
Disconnect all cables or devices from the
instrument before cleaning.
Use a soft cloth dampened in a solution of mild
detergent and water. Do not spray any liquid.
Do not use chemicals containing harsh material
such as benzene, toluene, xylene, and acetone.
Operation
Environment
Location: Indoor, no direct sunlight, dust free,
almost non-conductive pollution (Note below)
Temperature: 5°C to 45°C
Humidity: 65% @ 50°C

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4
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
5
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 .............................................7
Package Contents and Standard
Accessories .................................................8
Optional Accessories ..................................8
Appearance ....................................................................... 9
Front Face ...................................................9
Rear Face ....................................................9
Signal Generator Display - Java .................10
Signal Generator Display –Android App ...12
Primary RF –Tracking Generator Function 15
First Time Use Instructions ............................................. 16
Installing the USG USB Driver ..................16
Disabling the Device Driver Signature
Enforcement in Windows 8 .......................18
Installing the USG Software from Google
Play...........................................................19

USG Series User Manual
6
Tracking Generator Software Installation
(Primary RF) .............................................20

GETTING STARTED
7
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.
As a tracking generator, the USG can be connected to a PC using
dedicated software (Primary RF) to synchronize the USG with the
GSP-730 spectrum analyzer.
Series lineup
The USG series consists of 5 models, spanning a number of
different frequency ranges.
Model
Frequency
Phase Noise
USG-LF44
34.5 MHz to 4.4 GHz
< -97dBc/Hz@1GHz, 10kHz
USG-0103
100 MHz to 300 MHz
< -100dBc/Hz@200MHz, 10kHz
USG-0818
800 MHz to 1.8 GHz
< -97dBc/[email protected], 10kHz
USG-2030
2.0 GHz to 3.0 GHz
< -93dBc/[email protected], 10kHz
USG-3044
3.0 GHz to 4.4 GHz
< -88dBc/[email protected], 10kHz
Main Features
Performance
Five models supporting a frequency range from
34.5 MHz to 4.4 GHz
10kHz resolution
-30 dBm to 0 dBm output power
Features
Signal generator operation supports a plethora

USG Series User Manual
8
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.
Package Contents and Standard Accessories
Standard
Accessories
Part number
Description
Region dependant
User manual CD
Region dependant
USB A to Mini USB cable
Optional Accessories
Standard
Accessories
Part number
Description
ADP-003
N female to SMA female adaptor

GETTING STARTED
9
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
10
Signal Generator Display - Java
Power
indicator
Power
Sweep
Function
Mode
Start key
Offset and
time dwell
settings
Frequency
settings
System
infomation
Frequency
status bar
Step Size
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. The
From setting set the initial power level at the start
of the sweep and the To setting sets the final power
level at the end of the sweep.
Step Size
Sets the sweep step settings

GETTING STARTED
11
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
Bar
When the output is on, the point on the frequency
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.
System
Information
The system information states the serial number,
model and frequency range specifications.
Frequency Offset
Settings
Offsets the frequency by ±50 kHz.
Time Dwell
Settings
The time dwell settings determine how long the
signal will stay (dwell) at each frequency point.
Step Size
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.

USG Series User Manual
12
Signal Generator Display –Android App
Power
indicator Function
settings
Main
panel
Start key
Frequency
range
settings
System
infomation
Frequency
status bar
Frequency
offset
settings
To Frequency
Setting panel
About
To Main panel
Frequency
Setting panel
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.
Main panel
Indicates that the interface is in the Main panel.
To Frequency
Setting panel
Indicates that swiping to the left will go to the
Frequency Setting panel.

GETTING STARTED
13
Function Settings
Chooses the type of function to be performed by
the USG: Continuous Sweep, Single Sweep, Single
Point or Hopping.
Frequency Range
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
Actual frequency
Frequency Status
Bar
When the output is on, the point on the frequency
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.
About
Pressing About will display the GNU lesser GPL
license requirements.
To Main panel
Indicates that swiping to the right will go to the
Main panel.
Frequency Setting
panel
Indicates that the interface is in the Frequency
Setting panel.
Frequency Offset
Settings
Offsets the frequency by ±50 kHz.
Power Sweep
Settings
Sets the start and stop power level settings. The
From setting sets the initial power level at the start
of the sweep, and the To setting sets the final
power level at the end of the sweep.

USG Series User Manual
14
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
15
Primary RF –Tracking Generator Function
USG Power Level
Point
GSP
Settings
Stop
Mark
Normalize Settings
Continuous
Sweep
Single
Sweep
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.
Stop
Stops the sweep output.

USG Series User Manual
16
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.
For Microsoft Windows operating systems, the
USG will be recognized as a virtual COM port
device only after the USB driver is installed.
Requirements
Operating System: Windows XP, Vista, 7, 8*
Note
*Please note that for Windows 8, “Device driver
signature enforcement” must first be disabled
before the driver can be installed. See page 18 for
details.
Steps
1. Connect the USG to the PC using the USB Type
A - Mini-B cable.
If the PC asks for the driver, please go to step 5.
2. Open the Windows Device Manager. On
Windows 7 for example:
Start>Control Panel>Hardware and Sound>Device
Manager

GETTING STARTED
17
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
18
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
To install the USG USB driver on Windows 8
systems, you must first disable “Device driver
signature enforcement”. This procedure is
shown below.
Note
Applicable to Windows 8 only!
Steps
1. Go to the Charms bar Click on Settings 
Click on Power Hold the SHIFT key and click
Restart Click Troubleshoot Advanced
Options Startup Settings Restart Select
7) Disable driver signature enforcement.
2. The PC will now restart.
3. After the PC restarts, it will now be possible to
install the USG USB driver on Windows 8 using
the procedure shown previously.