page_title: Transient Array Radio Telescope
section_title: RF front end
hierarchical_section_title: Transient Array Radio Telescope / Design / RF front end
caption_attribution_description: English: The radio front end module of a TART radio telescope
context_page_description: The Transient Array Radio Telescope is a low-cost open-source array radio telescope consisting of 24 all-sky GNSS receivers operating at the L1-band. TART was designed as an all-sky survey instrument for detecting radio bursts, as well as providing a test-bed for the development of new synthesis imaging and calibration algorithms. All of the telescope hardware including radio receivers, correlators and operating software are open source. A TART-2 radio-telescope can be built for approximately 1000 Euros, and the telescope antenna array requires 4m x 4m area for deployment.
context_section_description: The Radio Frequency (RF) front ends receive the radio signals from each antenna. The RF front ends take advantage of low-cost, widely available, and very sensitive integrated circuits developed for global positioning satellite receivers. The TART uses the MAX2769C Universal GNSS Receiver made by Maxim Integrated. This single integrated circuit includes all the elements required of a radio-telescope receiver; low-noise amplifier, local oscillator, mixer, filters and an ADC. Each RF front end generates a data-stream of digitized radio signals with 2.5 MHz bandwidth from the GPS L1 band (1.57542 GHz).
caption: Radio front end module, showing the integrated MAX2769 receiver circuit.
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