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ETSI EN 301 688
- ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and methods of measurement for fixed and portable VHF equipment operating on 121,5 MHz and 123,1 MHz
- standard by European Telecommunications Standards Institute, 07/01/2000
- Publisher: ETSI
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Equipment to be used for communications between ships in distress and rescuing aircraft.
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