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This article in AJ

  1. Vol. 74 No. 4, p. 768-769
    Received: Aug 31, 1981

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Radio Detector and Peg Technique for Locating Sampling Sites in the Field1

  1. D. W. L. Read and
  2. D.R. Cameron2



It is usually difficult to relocate specific sites in fields. Many methods have been used, including metal detectors, permanent stakes and measuring from bench mark sites. A new system has been developed which has advantages over all these methods. It consists of a peg (transponder) that can be buried below cultivation depth and an easily operated detector that can detect the peg from approximately 2 m distance and home in on the exact position. The accuracy is within 5 cm when the peg is buried at a 1-m depth. The equipment is of sturdy construction and the pegs remain useable for many years.

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