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Electronic Design

Instrument Combines Bluetooth RF, Interoperability Testing

The R4870 is the first single instrument that performs both RF and interoperability tests in accordance with the Bluetooth Special Interest Group (SIG) specifications. A proprietary WMT architecture allows the R4870 to be used during R&D and manufacturing to test a Bluetooth product's RF characteristics plus its interoperability with other Bluetooth-enabled products. The instrument tests output power, power control, modulation characteristics, initial carrier-frequency tolerance, and receiver sensitivity. It can also automatically start testing Bluetooth modules via its embedded Host Control Interface (HCI) and performs tests using a "dirty" transmitter signal, which is an irregularly modulated signal used to test a product's receiver characteristics.

The R4870 has frequency and level resolutions of 1 kHz and 1 dB, respectively, when conducting transmitter tests from 2402 to 2480 MHz. For receiver tests, it covers the 300-Hz to 300-kHz frequency range and has a power measurement range of −15 to + 23 dBm (Channel 1). It costs $24,800.

Advantest America Measuring Solutions
(732) 346-2600

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