A reference level shall be determined as described in the individual sub clauses addressing the low frequency (magnetic), resonant range, and high frequency (plane wave) measurements. This determination may be made as frequently as required by changes in the test configuration. The reference level shall be re-measure at the conclusion of testing at each frequency. The tests since the prior reference level determination shall be repeated if the values have varied by more than ±3 dB.
Each unique equipment conÞguration used to measure SE shall be demonstrated to have adequate DR. Determination of the DR shall consist of excitation of the receiving equipment with the associated transmitting equipment, and demonstration that the equipment remains calibrated (linear) for all levels of received and transmitted signals that are actually experienced during the test. This demonstration shall be accomplished by varying the receiver input with a calibrated attenuator and observing an equal change, in decibels, in the receive system. This test shall be done at least once for each test frequency. The DR shall be at least 6 dB greater than the SE to be measured. DR can most efficiently be determined during the reference measurement. Effects of surrounding structure (walls, buildings, etc.) shall be minimized.
A reference level shall be determined as described in the individual sub clauses addressing the low frequency (magnetic), resonant range, and high frequency (plane wave) measurements. This determination may be made as frequently as required by changes in the test configuration. The reference level shall be re-measure at the conclusion of testing at each frequency. The tests since the prior reference level determination shall be repeated if the values have varied by more than ±3 dB.Each unique equipment conÞguration used to measure SE shall be demonstrated to have adequate DR. Determination of the DR shall consist of excitation of the receiving equipment with the associated transmitting equipment, and demonstration that the equipment remains calibrated (linear) for all levels of received and transmitted signals that are actually experienced during the test. This demonstration shall be accomplished by varying the receiver input with a calibrated attenuator and observing an equal change, in decibels, in the receive system. This test shall be done at least once for each test frequency. The DR shall be at least 6 dB greater than the SE to be measured. DR can most efficiently be determined during the reference measurement. Effects of surrounding structure (walls, buildings, etc.) shall be minimized.
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