Over many years low-frequency radio surveys have been made in Cambridge that cover much of the northern sky at both 38 and 151 MHz. The characteristics of the earlier surveys - 6C (at 151 MHz, delta above +30deg) and 8C (at 38 MHz, delta above +60deg), both with a resolution of about 4 arcmin - are reviewed, together with the results from more recent surveys made at 151 MHz, with a resolution of about 1.2 arcmin with the Cambridge Low-Frequency Synthesis Telescope (CLFST). These surveys include the 7C survey, which includes low declinations to complement 6C, selected regions at higher declinations, variability studies, and the 7C(G) survey of much of the northern Galactic plane.
The Universe at Low Radio Frequencies
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