DATE: 20 June 2002 PR251

IFR Announces New Automated Intermodulation Test Software for 2.4 GHz 2309 Signal Analyzer

2309 Is Faster and More Accurate Than Conventional Swept Spectrum Analyzers

WICHITA, Kan.--(BUSINESS WIRE)--June 20, 2002--IFR, an Aeroflex Company (Nasdaq: ARXX), today announced new intermodulation application software is now available for the 2.4 GHz 2309 signal analyzer.

The 2309 signal analyzer is ideal for RF designers and production ATE engineers who must measure intermodulation distortion of wireless systems and components such as receivers, amplifiers, frequency converters and mixers. The 2309 intermodulation software uses FFT analysis to perform fast and accurate measurements of intermodulation with dynamic range beyond the capability of conventional swept spectrum analyzers and does so at speeds formerly unachievable by conventional methods. Software release 2.50 is shipped at no cost with all new 2309 instruments and can be upgraded for existing instruments.

The new application software equips the 2309 with a powerful, fast and accurate method for making intermodulation distortion measurements. For the first time, complex and time consuming intermodulation measurements have been simplified to allow the tests to be automated. The new software builds on the 2309's existing intermodulation distortion measurement capability to provide a user interface that requires very little setup by the user.

"The 2309 has the widest intermodulation-free dynamic range of any known test instrument," said Paul Blakemore, signal analyzers product manager, IFR. "The 2309 performs intermodulation measurements better than any other instrument. Not only does it have wide dynamic range, but also great linearity and accuracy to match. This means that absolute measured values, relative level values and the measurement range are better than anything else on the market today."

More Accurate Intermodulation Measurement Than Spectrum Analyzers

Although spectrum analyzers can be used to make intermodulation measurements, their performance, speed and accuracy are often unacceptable because of the errors in the level-measuring systems used in spectrum analyzers and their inherent noise.

The 2309 signal analyzer has many advantages over conventional swept-tuned spectrum analyzers -- in terms of speed, accuracy, dynamic range and detector linearity -- that together add up to a revolutionary improvement in measurement capability for amplifier intermodulation testing, attenuator calibration and VCO noise measurements. The 2309 is able to make narrowband measurements over 100 times faster than even the best swept-tuned spectrum analyzers. The additional speed can be used to improve test throughput or to gain improved dynamic range by using narrower frequency resolution for the same measurement speed. The 2309 uses a very simple down-conversion process that avoids the complex RF chain of spectrum analyzers, which creates additional non-linearity and can generate level errors. As a result, the power accuracy of the 2309 is a very good 0.5 dB up to 1 GHz and 1 dB to 2.4 GHz.

Intermodulation Measurement Mode on the 2309

Making intermodulation measurements is greatly simplified by the 2309's new intermodulation mode. As two-tone measurements are made, the required intermodulation products are displayed in an easy-to-read tabular form with Pass/Fail limits. A second mode allows the user access to set up tone and product frequencies for ultimate flexibility of measurements required for multi-tone intermodulation measurements. The user is no longer required to make careful calculations in order to find the optimum operating point for the instrument, thus ensuring valid results are obtained every time. The results can be displayed as a table of values or as a spectral trace. In either case, the results are verified against a test limit.

The input level and tone frequencies for the measurement can be specified by the user or automatically determined by the instrument. This unique automatic feature ensures that the equipment is always optimally configured to give consistent and accurate results. Unlike other solutions, the user does not need to know anything about the equipment or the test signal to decide how best to configure the test, making it ideal for unskilled operators. The user specifies the nominal input frequency and the instrument performs a search to find the exact frequency, making it easier to use and simultaneously providing greater measurement precision. The intermodulation products to be measured are then calculated. This is ideal for the majority of systems where some variation in signal frequency may occur.

Key Features and Specifications of the 2309 Signal Analyzer

  • Automated intermodulation measurement on amplifiers and frequency converters
  • Accurate spurious measurement on transmitters
  • RF attenuator calibration and switch repeatability testing
  • Accurate true RMS power measurement to 40 watts
  • Excellent linearity and high intermodulation-free dynamic range
  • Very fine level resolution of 0.0001 dB
  • Linearity accuracy of 0.01 dB per 10 dB
  • Measurement resolution to 0.04 Hz
  • Low phase noise of -121 dBc/Hz
  • Input sensitivity to -167 dBm
  • Less than -130 dBc IF spurious-free dynamic range

About IFR

IFR is a leading designer and manufacturer of advanced wireless test solutions for communications, avionics and general test and measurement applications. For more information about IFR in the United States, contact: IFR, 10200 West York Street, Wichita, Kan., 67215-8999. Contact IFR via e-mail at, on the Web at, or by telephone at 800/835-2352 or 316/522-4981.

About Aeroflex

Aeroflex Incorporated, through its subsidiaries, designs, develops and manufactures state-of-the-art microelectronic module, integrated circuit, interconnect and testing solutions used in broadband communication applications. The Company's common stock trades on the Nasdaq National Market System under the symbol ARXX and is included in the S&P SmallCap 600 index. Additional information concerning Aeroflex Incorporated can be found on the Company's Web site:


US Media Contacts


Deb Stockman
Aeroflex Test Solutions

Debra Seifert

McClenahan Bruer Communications