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The Llanherne VHF Radio Telescope

Published online by Cambridge University Press:  25 April 2016

R. H. Ferris ,
P. J. Turner ,
P. A. Hamilton  and
P. M. McCulloch
R. H. Ferris
Affiliation:
Physics Department, University of Tasmania
P. J. Turner
Affiliation:
Physics Department, University of Tasmania
P. A. Hamilton
Affiliation:
Physics Department, University of Tasmania
P. M. McCulloch
Affiliation:
Physics Department, University of Tasmania
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Extract

The Llanherne telescope is a meridian transit instrument with an instantaneous bandwidth of two octaves in the range 35 to 150 MHz, and was constructed primarily for studying the low frequency properties of pulsars. The antenna is a 78 × 156 metre filled aperture phased array comprising 4096 wire dipole elements arranged in a 64 × 64 matrix. Uniform illumination of the elements produces a single pencil beam response which is scanned electronically along the meridian from Declination -90° to +30°. The beamwidth at 100 MHz is 1 degree in right ascension and two degrees sec(Dec.) in declination and varies proportionally with wavelength, giving a transit time of 4 sec(Dec) × 100/f(MHz) minutes between half power points.

Type
Contributions
Information
Publications of the Astronomical Society of Australia , Volume 4 , Issue 1 , 1980 , pp. 26 - 28
Copyright
Copyright © Astronomical Society of Australia 1980

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References

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