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IEVref:705-07-23ID:
Language:enStatus: Standard
Term: lowest usable frequency
Synonym1: LUF (abbreviation)
[Preferred]
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Definition: the lowest frequency that would permit acceptable performance of a radio circuit by signal propagation via the ionosphere between given terminals below the ionosphere at a given time, under specified working conditions

NOTE 1 – Acceptable performance may for example be quoted in terms of maximum error ratio or required signal/noise ratio.

NOTE 2 – Specified working conditions may include such factors as antenna types, transmitter power, class of emission and required information rate.


Publication date:1995-09
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