# The Receiver System for the Ooty Wide Field Array

## TL;DR

The paper describes the design and components of the Ooty Wide Field Array, a modernized radio telescope array that enhances observational capabilities for large-scale structure, transients, and space weather studies.

## Contribution

It introduces the reconfiguration of the legacy Ooty Radio Telescope into the OWFA, detailing its RF subsystems, digitizers, and communication systems, and highlighting its observational advantages.

## Key findings

- Successful integration of digital receiver and correlator
- Enhanced field of view by over an order of magnitude
- System readiness for initial scientific observations

## Abstract

The legacy Ooty Radio Telescope (ORT) is being reconfigured as a 264-element synthesis telescope, called the Ooty Wide Field Array (OWFA). Its antenna elements are the contiguous 1.92 m sections of the parabolic cylinder. It will operate in a 38-MHz frequency band centred at 326.5 MHz and will be equipped with a digital receiver including a 264-element spectral correlator with a spectral resolution of 48 kHz. OWFA is designed to retain the benefits of equatorial mount, continuous 9-hour tracking ability and large collecting area of the legacy telescope and use modern digital techniques to enhance the instantaneous field of view by more than an order of magnitude. OWFA has unique advantages for contemporary investigations related to large scale structure, transient events and space weather watch. In this paper, we describe the RF subsystems, digitizers and fibre optic communication of OWFA and highlight some specific aspects of the system relevant for the observations planned during the initial operation.