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MOBILE COMMUNICATIONS MEASURING INSTRUMENTS

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Field upgradeable The Bluetooth protocol stack is held in FPGA so that future releases of the core Bluetooth specification can be installed locally. The in- struments main program is held in flash memory; consequently, product enhancements can be downloaded in the field.

BlueSuite support software

The standard BlueSuite software package, supplied at no charge with every MT8850A, gives PC control of the MT8850A/MT8852A for advanced design proving measurements on Bluetooth radios. Use BlueSuite to view packet modulation, power burst profiles and modu- lationeye diagrams. The standard BlueSuite software also offers a PCuser interface for defining custom test scripts and reading script results into the PC. For interoperability testing during protocol development, BlueSuite offers a LMP message log capture facility. This canbe used to view LMP messages between the MT8850A and the EUT during the initialisation of the link and while tests are running. Upgrade to BlueSuite Pro to display graphs of the output power, devia- tion, carrier drift and sensitivity on each of the 79 channels. BlueSuitePro also includes automated sensitivity search software for automat- ic measurements of BER and FER against receiver input level. To help track down the cause of occasional rogue packets, BlueSuite Pro can be configured to only capture a packet trace when the pack- et fails any specific measurement.

BlueTest production test software

The BlueTest PC software package controls up to 16 MT8850A/ MT8852A Bluetooth Test Sets. It is designed for users requiring rapid testing of multiple devices such as modules. BlueTest software offers a simple interface for configuring scripts, triggering multiple instru- ments to start testing and reading script results back into the PC. The results are stored into a database from which they can be print- ed or archived for future analysis. BlueTest software is supplied as standard with all MT8850A/MT8852As. Bluetooth DH1 packet deviation viewed with BlueSuite. Traceis colour coded such that; red is pre-amble, light blue is access code, brown is header, dark blue is payload and green is CRC. BlueSuite Pro measures deviation for 10101010 and 11110000payloads on each channel. Automatic sensitivity search measured with BlueSuite Pro.Blue trace shows FER and red trace BER. Results screen for BlueTest software. Typical BlueTest test report. Note: For MT8850A specifications and ordering information, see pages 349 – 353. http://www.anritsu.com 346