Emission standards for broadcasting tran

Emission standards for broadcasting transmitters

The TPGs also contain the standards applicable to analog broadcasting transmitters that operate in the terrestrial broadcasting services bands. The emission standards for AM and FM radio and analog television services are substantially the same as those published by the former Department of Transport and Communications in the period 1989‑92.

Reference to the relevant digital television standard is provided in Appendix 4. This standard has been prepared by Standards Australia and may be adopted by broadcasters and datacasters according to their own requirements. Aside from the radiated signal spectrum mask of Australian Standard AS 4599.1‑2007, which is mandatory under guideline 107, the standard is recommended by ACMA only and is not mandatory under the TPGs.

It should however be noted that the Broadcasting Services (Digital Television Format — Audio Component — Transmissions in SDTV Digital Mode) Technical Standard 2007 sets a requirement that if a television or datacasting service that is transmitted in SDTV digital mode has an audio component, the component must be capable of being decoded by a receiver that has only MPEG‑1 Layer 2 audio decoding capability.

Emission standard for the Australian Amplitude Modulation Sound Broadcasting Service

The AM emission standard is based on the Draft Emission Standard for the Australian Amplitude Modulation Sound Broadcasting Service published by the former Department of Transport and Communications in 1992.

The standard follows international practice with provision for stereophonic program transmission based on the C‑QUAM system.

The emission standard details the channel assignments for the AM radio broadcasting service, program signal characteristics for mono and stereo transmission and the radiated signal characteristics of the AM transmission.

Emission standard for the Australian FM Sound Broadcasting Service

The FM radio emission standard is based on the Emission Standard for the Australian Frequency Modulation Sound Broadcasting Service determined by the Minister for Transport and Communications pursuant to s.125D of the Broadcasting Act 1942, and published by the former Department of Transport and Communications in July 1992.

The emission standard covers the radiated signal characteristics of the transmission, nominal channel assignments for the FM radio broadcasting service, main program signal characteristics for both mono and stereo transmission, and includes requirements for ancillary communications services carried as subcarriers on the main FM carrier.

Emission standard for the Australian Analog Terrestrial Television Service

The analog television emission standard is based on the Emission Standard for the Australian Terrestrial Television Service determined by the Minister of Transport and Communications pursuant to section 125D of the Broadcasting Act 1942, and published by the former Department of Transport and Communications in March 1989.

The emission standard details the channelling arrangements for the analog television service as well as the video, vision and sound signal characteristics of the transmission.

The emission standard does not include the standard for teletext services provided in conjunction with the television transmission.