Summary
Ministerial Standard 306 was a technical standard for radiocommunications headset communicators made under the Radiocommunications Act 1983. It established technical specifications including permitted frequencies (channels A-F around 55 MHz), field strength limits, frequency error tolerances (±2.5 kHz), unwanted emission limits, and receiver radiation requirements. The standard also mandated equipment markings, type approval requirements, and restrictions on antenna design. Originally made in 1987, it remained in force until December 31, 2007 and is now repealed.
Reason
The instrument is already repealed (ceased December 31, 2007), making continued existence on the register unnecessary. Beyond its obsolescence, the standard exemplified typical technocratic mandating of specific technical parameters (precise frequency bands, field strength limits in dBuV/m, antenna length restrictions) that limit consumer choice and impose compliance costs on manufacturers. While radiocommunications coordination has legitimate objectives, such prescriptive device standards are better addressed through industry self-regulation or performance-based standards rather than detailed prescriptive rules that can stifle innovation and impose unnecessary costs, particularly given the 20-year life span before repeal demonstrated the standards became outdated.