ABT (TV station)

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ABT
Australian Broadcasting Corporation logo (1974-).svg
Channels
Programming
Affiliations ABC Television
Ownership
Owner Australian Broadcasting Corporation
History
First air date
4 June 1960;64 years ago (1960-06-04)
Former call signs
ABT (ABC Tasmania)
Former channel number(s)
 Analog: 2 (VHF) (1960–2013)
Technical information
Licensing authority
 Australian Communications and Media Authority
ERP 200 kW (analog)
50 kW (digital)
HAAT 1024 m (analog)
1042 m (digital) [1]
Transmitter coordinates 42°53′51″S147°14′10″E / 42.89750°S 147.23611°E / -42.89750; 147.23611 (ABT)
Links
Website www.abc.net.au/tv/

ABT is the call sign of a television station operated by the publicly-owned Australian Broadcasting Corporation, with a transmission area covering southern Tasmania. ABT began broadcasting on VHF channel 2 on 4 June 1960, with studios in inner-city Hobart and transmitter at Mount Wellington. The "AB" in the call sign stands for "Australian Broadcasting", as in Australian Broadcasting Commission (now Australian Broadcasting Corporation). The "T" in the call sign stands for Tasmania.[ citation needed ]

Contents

As in other Australian states, the ABC television station in the state's capital city relays programs to a network of region-based transmitters: in the case of Tasmania, ABNT for northern Tasmania (transmitter located on Mt Barrow) and ABKT for King Island (transmitter located on Gentle Annie Hill). Whilst their callsigns imply that they are standalone television stations, they have only ever operated as relays from ABT.

As well as these two nominal stations transmitting programs from ABT, there is an extensive network of translator stations performing the same function. Their purpose is to provide improved signal reception in areas with poor or no reception from Mount Wellington. They pick up the on-air signal from the Mount Wellington transmitter and re-broadcast it on another channel (to prevent cross interference which would arise from two transmitters in different locations transmitting the same program). The broken terrain and scattered population of Tasmania has necessitated a relatively large number of translator stations, even within the Hobart urban area e.g. Taroona.

History

ABT was the first television station to transmit in Tasmania, although from 1956, with the beginning of television transmission in Melbourne, it was possible along the northern coast of Tasmania, in favourable meteorological conditions, to receive television signals from Mount Dandenong, immediately east of Melbourne.

Until the completion of microwave links between Melbourne and Hobart, ABT operated as a standalone station, but with the completion of the microwave links, it increasingly shared programming with the national ABC television network. However some locally-produced programming still occurs e.g. Collectors , which was produced in Hobart from 2005 to 2011.

The original tower and transmitter for ABT on Mount Wellington were replaced in 1997 due to frequent signal failure due to icing of the transmitter elements, caused by meteorological conditions. The replacement transmitter, which necessitated a new tower to support it, is protected by a large protective cylinder which is opaque but through which radio signals are able to pass.

The analogue signal for ABT on channel 2 was shut off on 9 April 2013. [2] Since this time only a digital signal in the UHF band has been transmitted.

ABC Television in Tasmania today

Relay stations

The following stations relay ABT:

CallRegion servedCity Channels
(Analog/
digital)		First air date3rd letter's
meaning		 ERP
(Analog/
digital)		 HAAT
(Analog/
digital)1		Transmitter coordinatesTransmitter location
ABKT King Island King Island 11 (VHF)3
57 (UHF)		14 January 1972King Island2.6 kW
6.5 kW		190 m
198 m		 40°2′11″S144°1′0″E / 40.03639°S 144.01667°E / -40.03639; 144.01667 (ABKT) Gentle Annie
ABNTNorth Eastern Tasmania Launceston 32 (UHF)23
41 (UHF)		29 July 1963North Eastern2000 kW
1250 kW		847 m
847 m		 41°23′30″S147°25′36″E / 41.39167°S 147.42667°E / -41.39167; 147.42667 (ABNT) Mount Barrow

Notes:

As of 2021 there is a large number of transmitters broadcasting a number of ABC channels. [3]

Local programming

ABC News Tasmania is presented by Guy Stayner on weeknights and Alexandra Alvaro on weekends. The weeknight bulletins also incorporate national finance segment presented by Alan Kohler in Melbourne.[ citation needed ]

See also

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References

  1. ↑ HAAT estimated from http://www.itu.int/SRTM3/ using EHAAT.
  2. ↑ "Analogue TV Gets An Official Switch-Off Date". Lifehacker Australia. 25 June 2012. Retrieved 18 June 2021.
  3. ↑ Australian Communications and Media Authority (April 2021). "Section 7: Television Callsign order (by state)" (PDF). Radio and television broadcasting stations: Internet edition (PDF). ACMA. p. 222–223. Retrieved 18 June 2021. CC-BY icon.svg Attribution 4.0 International (CC BY 4.0) licence.


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