BIT ERROR ANALYSIS OF NEW GENERATION WIRELESS TRANSCEIVERS
There has been a spurt of activity in the development of digital wireless transceivers especially those
operating in the ISM (Industry Scientific Medical) bands. This is attributed to the fact that wireless systems have
become more reliable, compact and easy to develop than ever before, leading to a well-perceived ubiquity. Most
manufacturers do not document the error related performance and characteristics of their devices, thus entailing a detailed
analysis by the developer or the user. In this paper we highlight tests to measure the bit error related performance of
these new generation transceivers, with special emphasis on the TRF 6900A [3] transceiver from Texas Instruments, a
popular binary FSK (Frequency Shift Keying) device. The test bed consists of a wireless modem based on the
transceiver, and a personal computer executing a ‘C’ language code for baseband control and data source - sink, in
order to test the device in various configurations and conditions. Our test analyses bit error rate and tries to
highlight its relationship to various parameters such as attenuation, interference, occlusions, and modulation index,
which in turn helps to evaluate the performance of a wireless device. This method can be easily extended to evaluate
various other similar wireless transceivers offered in the market.
Keywords – Wireless transceiver, bit error test, wireless modem, FSK.
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