Keithley Announces New
Software Platform for RF Wave Generation
First Signal Library Supports Chinese TD-SCDMA Wireless
Cleveland, Ohio – August 21, 2007 -
Keithley Instruments, Inc. (NYSE:KEI), a leader in solutions for emerging measurement needs,
announces the release of SignalMeister™ Waveform Creation Software for Keithley's award-winning line
of RF vector signal generators. Keithley's SignalMeister is a free PC-based software tool that
creates arbitrary waveform (ARB) files that can be downloaded to Keithley's Model 2910 RF Vector
Signal Generator. SignalMeister is an expandable software platform with a common user interface that
will allow integration of multiple signal creation libraries with flexibility to handle multiple
signal standards as they become available. To learn more about Keithley's SignalMeister software,
The first signal generation library for the SignalMeister software supports
the Chinese TD-SCDMA wireless communications standard, which is expected to be deployed soon in
China. This TD-SCDMA library has the complete capability to produce virtually any TD-SCDMA signal
quickly and easily. Waveform files generated with SignalMeister integrate seamlessly with Keithley's
Model 2910 RF Vector Signal Generator. The SignalMeister software now allows users to get all the
time and cost saving benefits provided by the Model 2910 when calibrating and testing wireless
equipment and devices employing the TD-SCDMA technology standard.
The Model 2910 is Keithley's innovative next-generation RF test instrument,
featuring a flexible software-defined radio (SDR) architecture to provide extremely fast measurement
speed and which allows it to adapt quickly to the changing test requirements of the wireless
communications market without expensive hardware upgrades. All TD-SCDMA signals can be generated in
addition to, or in combination with, other technology standard signals already available using a
Model 2910 without any hardware modification.
The SignalMeister TD-SCDMA waveforms used with the Model 2910 RF Vector Signal
Generator have excellent accuracy and signal modulation quality performance, are ideal for
high-speed test execution, and are a low cost test solution. These important characteristics ensure
high product quality and production yields, reduce product test times, and lower capital costs,
critical success factors for the hyper-competitive Chinese market where the TD-SCDMA technology will
be used for the most part.
SignalMeister TD-SCDMA waveform signals generated using the Model 2910 have a
signal modulation quality characteristic EVM of 0.3%. Absolute amplitude accuracy is typically
<+0.3dB to ‑110dBm (CW), relative accuracy (linearity) is <+0.05dB, and repeatability is <+0.05dB.
TD-SCDMA devices require testing at different frequencies and amplitudes,
which the Model 2910 does in just over one millisecond with its patent-pending synthesizer design
and List Mode. In addition, TD-SCDMA devices are commonly tested with multiple signal waveforms
which must be switched quickly. The Model 2910 can store multiple TD-SCDMA waveforms, along with
waveforms from other technology standards, in its 40MHz bandwidth, 100 Mega-sample ARB memory. It
can switch between waveforms instantly, in one sample period, using the ARB Sequence feature or in
less than three milliseconds using a SCPI command via any of the instrument's GPIB, USB, or LAN
interfaces, which includes LXI Class 3 operation.
The SignalMeister TD-SCDMA software generates waveforms that conform to the
ETSI 3GPP-TDD standard and defines 11 physical and three transport channels for both Uplink and
Downlink signals. In addition to creating a signal that conforms to the standard, the SignalMeister
software can also produce a TD-SCDMA signal that goes outside the standard, giving test engineers
the ability to push parameter values beyond the standard in order to stress devices and ensure very
high product quality. When certain parameter settings are not allowed, SignalMeister software warns
the user and won't allow the signal waveform file to be created, preventing errors from occurring.
Keithley's SignalMeister Waveform Creation Software features an intuitive
PC-based graphical user interface (GUI) that speeds up and simplifies signal creation, allowing
users to quickly and easily generate signal waveforms. For instance, a set-up wizard lets users set
up all of the reference measurement channels (RMC) defined in the TD-SCDMA standard as well as
define the start timeslot and start code for each RMC. All the Uplink and Downlink RMCs are
supported. In addition, a signal configuration tree helps engineers navigate the creation of a TD-SCDMA
waveform using comprehensive dialog boxes for each channel with clearly organized signal parameter
settings. A parameter settings summary also displays the current settings and the allowed value
range of each parameter.
Keithley's SignalMeister software with TD-SCDMA waveform generation capability
is ideally suited for the testing needs of mobile phone manufacturers, RF device manufacturers and
mobile phone chip-set suppliers in both production and R&D environments. Test engineers in
base-station manufacturing, such as pico base stations, which requires high-speed testing and are
especially sensitive to equipment costs, will also benefit from the SignalMeister software when used
with the Model 2910 RF Vector Signal Generator.
Keithley offers its customers a range of fast and accurate RF test
instrumentation solutions for the wireless market. With an unrivaled combination of accuracy,
repeatability, speed, flexibility, ease of use, and compact size, these award-winning instruments
employ new approaches to test and measurement that enable users to reduce test time with less effort
and money. In R&D applications, Keithley's RF test solutions help decrease product time to market
while increasing productivity and lowering capital equipment costs. For production facilities
testing wireless communication equipment and devices that are faced with intense budget and
time-to-market constraints but cannot compromise on measurement quality, valuable rack or bench-top
space, or ease of use, Keithley Instruments deliver exceptional measurements for the lowest test
Price and Availability: SignalMeister Waveform Creation Software is
available now at no charge to Model 2910 users. SignalMeister software is part of the documentation
that comes with Keithley's Model 2910 RF Vector Signal Generators currently being shipped and can be
downloaded from Keithley's web site at http://www.keithley.com/products/rfmicrowave/?mn=290101. The
2910-TDSCDMA-PC software license, which has a U.S. catalog price of $3,500, must be loaded on the
Model 2910 RF Vector Signal Generator in order to run SignalMeister TD-SCDMA waveform files.
For More Information. For more information on SignalMeister Waveform
Creation Software or any of Keithley's RF test solutions, contact the company at:
Telephone: 800-688-9951 440-248-0400
Address: Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, OH 44139-1891
About Keithley Instruments, Inc.
With more than 60 years of measurement expertise, Keithley Instruments has
become a world leader in advanced electrical test instruments and systems from DC to RF (radio
frequency). Our products solve emerging measurement needs in production testing, process monitoring,
product development, and research. Our customers are scientists and engineers in the worldwide
electronics industry involved with advanced materials research, semiconductor device development and
fabrication, and the production of end products such as portable wireless devices. The value we
provide them is a combination of precision measurement technology and a rich understanding of their
applications to improve the quality of their products and reduce their cost of test.
company names listed are trademarks or trade
names of their respective companies.