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We report the design and development of a self-contained multi-band receiver(MBR) system, intended for use with a single large aperture to facilitatesensitive & high time-resolution observations simultaneously in 10 discretefrequency bands sampling a wide spectral span (100-1500 MHz) in a nearlylog-periodic fashion. The development of this system was primarily motivated byneed for tomographic studies of pulsar polar emission regions. Although thesystem design is optimized for the primary goal, it is also suited for severalother interesting astronomical investigations. The system consists of adual-polarization multi-band feed (with discrete responses corresponding to the10 bands pre-selected as relatively RFI-free), a common wide-band RF front-end,and independent back-end receiver chains for the 10 individual sub-bands. Theraw voltage time-sequences corresponding to 16 MHz bandwidth each for the twolinear polarization channels and the 10 bands, are recorded at the Nyquist ratesimultaneously. We present the preliminary results from the tests and pulsarobservations carried out with the Green Bank Telescope using this receiver. Thesystem performance implied by these results, and possible improvements are alsobriefly discussed.

RRI-GBT Multi-Band Receiver: Motivation, Design & Development