The organisation began operations in 1992 as the signal distributor of the South African Broadcasting Corporation. Sentech's mandate also included providing services to M-Net, Radio 702, Radio Ciskei, Radio Transkei and the Bophuthatswana Broadcasting Corporation.
However, in its Triple Inquiry report that was published in August 1995, the Independent Broadcasting Authority (IBA) recommended that Sentech should be split from the SABC and that Sentech become a public company. This report was approved by the South African Parliament in March 1996 and the Sentech Act to implement these measures was adopted by Parliament in November of the same year.
Sentech now operates as a commercial enterprise that is owned by the Government of South Africa via the Department of Communications and has its own board of directors.
For a comprehensive list of South African radio and television frequencies, go to the frequency finder on the Sentech website: www.sentech.co.za.
Province | Historical Province | Location | Height of tower | Transmitter Coordinates | Eastern Cape | Cape Province | Aliwal North | 143 m | 30|47|6|S|26|33|58|E|type:landmark_scale:2000_region:ZA|name=Aliwal North transmitter}} |
Western Cape | Cape Province | Beaufort West | 204 m | 32|15|30|S|22|30|23|E|type:landmark_scale:2000_region:ZA|name=Beaufort West transmitter}} |
Eastern Cape | Cape Province | Bedford | 143 m | 32|37|57|S|26|2|56|E|type:landmark_scale:2000_region:ZA|name=Bedford transmitter}} |
Free State | Orange Free State | Bethlehem | 174 m | 28|14|12|S|28|29|57|E|type:landmark_scale:2000_region:ZA|name=Bethlehem transmitter}} |
Free State | Orange Free State | Bloemfontein | 204 m | 29|6|13|S|26|13|47|E|type:landmark_scale:2000_region:ZA|name=Bloemfontein transmitter}} |
Free State | Orange Free State | Boesmanskop | 235 m | 30|0|28|S|27|12|53|E|type:landmark_scale:2000_region:ZA|name=Boesmanskop transmitter}} |
Eastern Cape | Cape Province | Butterworth | 235 m | 32|16|35|S|28|12|24|E|type:landmark_scale:2000_region:ZA|name=Butterworth transmitter}} |
Northern Cape | Cape Province | Calvinia | 213.5 m | 31|23|3|S|19|46|56|E|type:landmark_scale:2000_region:ZA|name=Calvinia transmitter}} |
Western Cape | Cape Province | Cape Town (Constantiaberg) | 146 m | 34|3|16|S|18|23|12|E|type:landmark_scale:2000_region:ZA|name=Cape Town (Constantiaberg) transmitter}} |
Northern Cape | Cape Province | Carnarvon | 244 m | 30|54|15|S|22|22|27|E|type:landmark_scale:2000_region:ZA|name=Carnarvon transmitter}} |
Mpumalanga | Transvaal | Carolina (The Brook) | 213.5m | 26|10|27|S|30|38|6|E|type:landmark_scale:2000_region:ZA|name=Carolina (The Brook) transmitter}} |
North West Province | Transvaal | Christiana | 233 m | 27|53|4|S|24|55|47|E|type:landmark_scale:2000_region:ZA|name=Christiana transmitter}} |
Eastern Cape | Cape Province | Cradock | 174 m | 32|18|2|S|25|32|26|E|type:landmark_scale:2000_region:ZA|name=Cradock transmitter}} |
Mpumalanga | Transvaal | Davel | 265 m | 26|27|32|S|29|37|25|E|type:landmark_scale:2000_region:ZA|name=Davel transmitter}} |
Northern Cape | Cape Province | De Aar | 204 m | 30|27|50|S|23|59|13|E|type:landmark_scale:2000_region:ZA|name=De Aar transmitter}} |
KwaZulu-Natal | Natal | Donnybrook | 122 m | 29|54|58|S|29|51|18|E|type:landmark_scale:2000_region:ZA|name=Donnybrook transmitter}} |
Northern Cape | Cape Province | Douglas | 242 m | 29|4|8|S|23|31|43|E|type:landmark_scale:2000_region:ZA|name=Douglas transmitter}} |
Mpumalanga | Transvaal | Dullstroom | 25|34|23|S|30|11|16|E|type:landmark_scale:2000_region:ZA|name=Dullstroom transmitter}} |
KwaZulu-Natal | Natal | Durban (Alverstone) | 247 m | 29|46|12|S|30|43|0|E|type:landmark_scale:2000_region:ZA|name=Durban (Alverstone) transmitter}} |
Eastern Cape | Cape Province | East London | 204 m | 32|56|21|S|27|48|55|E|type:landmark_scale:2000_region:ZA|name=East London transmitter}} |
KwaZulu-Natal | Natal | Eshowe | 143 m | 28|51|32|S|31|17|35|E|type:landmark_scale:2000_region:ZA|name=Eshowe transmitter}} |
Northern Cape | Cape Province | Faans Grove | 146 m | 27|6|0|S|22|24|16|E|type:landmark_scale:2000_region:ZA|name=Faans Grove transmitter}} |
Northern Cape | Cape Province | Garies | 213.5 m | 30|18|53|S|18|4|40|E|type:landmark_scale:2000_region:ZA|name=Garies transmitter}} |
Western Cape | Cape Province | George | 143 m | 33|55|39|S|22|27|1|E|type:landmark_scale:2000_region:ZA|name=George transmitter}} |
KwaZulu-Natal | Natal | Glencoe (Fort Mistake) | 143 m | 28|9|5|S|29|56|51|E|type:landmark_scale:2000_region:ZA|name=Glencoe (Fort Mistake) transmitter}} |
Eastern Cape | Cape Province | Graaff Reinet | 32|4|48|S|24|26|59|E|type:landmark_scale:2000_region:ZA|name=Graaff Reinet transmitter}} |
Eastern Cape | Cape Province | Grahamstown | 204 m | 33|17|15|S|26|42|30|E|type:landmark_scale:2000_region:ZA|name=Grahamstown transmitter}} |
KwaZulu-Natal | Natal | Greytown | 174 m | 29|0|47|S|30|32|9|E|type:landmark_scale:2000_region:ZA|name=Greytown transmitter}} |
Limpopo | Transvaal | Hoedspruit | 24|32|32|S|30|52|7|E|type:landmark_scale:2000_region:ZA|name=Hoedspruit transmitter}} |
Gauteng | Transvaal | Johannesburg | 237 m | 26|11|33|S|28|0|25|E|type:landmark_scale:2000_region:ZA|name=Johannesburg transmitter}} |
Eastern Cape | Cape Province | Kareedouw | 34|1|30|S|24|25|47|E|type:landmark_scale:2000_region:ZA|name=Kareedouw transmitter}} |
Northern Cape | Cape Province | Kimberley | 235 m | 28|51|15|S|24|54|17|E|type:landmark_scale:2000_region:ZA|name=Kimberley transmitter}} |
Eastern Cape | Cape Province | King William's Town (Keiskammahoek) | 174 m | 32|40|48|S|27|15|36|E|type:landmark_scale:2000_region:ZA|name=King William's Town (Keiskammahoek) transmitter}} |
North West Province | Transvaal | Klerksdorp (Hartbeesfontein) | 265 m | 26|45|15|S|26|24|28|E|type:landmark_scale:2000_region:ZA|name=Klerksdorp (Hartbeesfontein) transmitter}} |
Free State | Orange Free State | Kroonstad | 235 m | 27|25|17|S|27|11|7|E|type:landmark_scale:2000_region:ZA|name=Kroonstad transmitter}} |
Northern Cape | Cape Province | Kuruman Hills | 241 m | 27|53|13|S|23|33|37|E|type:landmark_scale:2000_region:ZA|name=Kuruman Hills transmitter}} |
Free State | Orange Free State | Ladybrand | 174 m | 29|10|19|S|27|22|41|E|type:landmark_scale:2000_region:ZA|name=Ladybrand transmitter}} |
Limpopo | Transvaal | Louis Trichardt | 143 m | 23|0|5|S|29|45|27|E|type:landmark_scale:2000_region:ZA|name=Louis Trichardt transmitter}} |
Eastern Cape | Cape Province | Matatiele | 213.5 m | 30|23|47|S|28|49|15|E|type:landmark_scale:2000_region:ZA|name=Matatiele transmitter}} |
Western Cape | Cape Province | Matjiesfontein | 143 m | 33|16|54|S|20|30|17|E|type:landmark_scale:2000_region:ZA|name=Matjiesfontein transmitter}} |
Mpumalanga | Transvaal | Middelburg | 244 m | 25|49|6|S|29|23|23|E|type:landmark_scale:2000_region:ZA|name=Middelburg transmitter}} |
KwaZulu-Natal | Natal | Mooi River | 174 m | 29|11|9|S|29|52|3|E|type:landmark_scale:2000_region:ZA|name=Mooi River transmitter}} |
Eastern Cape | Cape Province | Mount Ayliff | 137 m | 30|50|14|S|29|23|41|E|type:landmark_scale:2000_region:ZA|name=Mount Ayliff transmitter}} |
Western Cape | Cape Province | Napier (Bredasdorp) | 143 m | 34|31|46|S|19|53|33|E|type:landmark_scale:2000_region:ZA|name=Napier transmitter}} |
Mpumalanga | Transvaal | Nelspruit | 25|30|57|S|30|46|33|E|type:landmark_scale:2000_region:ZA|name=Nelspruit transmitter}} |
KwaZulu-Natal | Natal | Nongoma | 183 m | 27|54|19|S|31|39|26|E|type:landmark_scale:2000_region:ZA|name=Nongoma transmitter}} |
Eastern Cape | Cape Province | Noupoort | 174 m | 31|18|14|S|24|55|59|E|type:landmark_scale:2000_region:ZA|name=Noupoort transmitter}} |
Western Cape | Cape Province | Oudtshoorn | 143 m | 33|40|17|S|22|16|1|E|type:landmark_scale:2000_region:ZA|name=Oudtshoorn transmitter}} |
Free State | Orange Free State | Petrus Steyn | 235 m | 27|31|1|S|28|19|6|E|type:landmark_scale:2000_region:ZA|name=Petrus Steyn transmitter}} |
Mpumalanga | Transvaal | Piet Retief | 265 m | 27|1|13|S|30|41|2|E|type:landmark_scale:2000_region:ZA|name=Piet Retief transmitter}} |
Western Cape | Cape Province | Piketberg | 174 m | 32|49|9|S|18|44|17|E|type:landmark_scale:2000_region:ZA|name=Piketberg transmitter}} |
Eastern Cape | Cape Province | Port Elizabeth | 204 m | 33|56|10|S|25|26|27|E|type:landmark_scale:2000_region:ZA|name=Port Elizabeth transmitter}} |
KwaZulu-Natal | Natal | Port Shepstone | 204 m | 30|44|8|S|30|17|16|E|type:landmark_scale:2000_region:ZA|name=Port Shepstone transmitter}} |
Limpopo | Transvaal | Potgietersrus | 24|9|26|S|29|14|9|E|type:landmark_scale:2000_region:ZA|name=Potgietersrus transmitter}} |
Gauteng | Transvaal | Pretoria | 113 m | 25|41|22|S|27|59|2|E|type:landmark_scale:2000_region:ZA|name=Pretoria transmitter}} |
Northern Cape | Cape Province | Prieska | 244 m | 29|40|54|S|22|36|55|E|type:landmark_scale:2000_region:ZA|name=Prieska transmitter}} |
Eastern Cape | Cape Province | Queenstown | 143 m | 31|43|58|S|26|47|3|E|type:landmark_scale:2000_region:ZA|name=Queenstown transmitter}} |
Western Cape | Cape Province | Riversdale | 143 m | 34|1|8|S|21|7|39|E|type:landmark_scale:2000_region:ZA|name=Riversdale transmitter}} |
North West Province | Transvaal | Rustenburg | 113 m | 25|36|59|S|27|7|5|E|type:landmark_scale:2000_region:ZA|name=Rustenburg transmitter}} |
North West Province | Transvaal | Schweizer-Reneke | 265 m | 27|8|10|S|25|13|7|E|type:landmark_scale:2000_region:ZA|name=Schweizer-Reneke transmitter}} |
Free State | Orange Free State | Senekal | 235 m | 28|15|21|S|27|30|25|E|type:landmark_scale:2000_region:ZA|name=Senekal transmitter}} |
Northern Cape | Cape Province | Springbok | 241 m | 29|35|4|S|17|48|26|E|type:landmark_scale:2000_region:ZA|name=Springbok transmitter}} |
Free State | Orange Free State | Springfontein | 143 m | 30|16|15|S|25|46|7|E|type:landmark_scale:2000_region:ZA|name=Springfontein transmitter}} |
Eastern Cape | Cape Province | Suurberg | 204 m | 33|14|55|S|25|34|27|E|type:landmark_scale:2000_region:ZA|name=Suurberg transmitter}} |
Limpopo | Transvaal | Thabazimbi | 183 m | 24|28|2|S|27|36|50|E|type:landmark_scale:2000_region:ZA|name=Thabazimbi transmitter}} |
Free State | Orange Free State | Theunissen | 265 m | 28|11|56|S|26|34|48|E|type:landmark_scale:2000_region:ZA|name=Theunissen transmitter}} |
Limpopo | Transvaal | Tzaneen (Houtbosdorp) | 23|47|7|S|30|0|16|E|type:landmark_scale:2000_region:ZA|name=Tzaneen (Houtbosdorp) transmitter}} |
KwaZulu-Natal | Natal | Ubombo | 27|33|44|S|32|4|50|E|type:landmark_scale:2000_region:ZA|name=Ubombo transmitter}} |
Eastern Cape | Cape Province | Umtata | 235 m | 31|35|49|S|28|44|36|E|type:landmark_scale:2000_region:ZA|name=Umtata transmitter}} |
Northern Cape | Cape Province | Upington | 244 m | 28|52|58|S|21|44|11|E|type:landmark_scale:2000_region:ZA|name=Upington transmitter}} |
Western Cape | Cape Province | Vanrhynsdorp | 183 m | 31|45|16|S|18|41|21|E|type:landmark_scale:2000_region:ZA|name=Van Rhynsdorp transmitter}} |
Western Cape | Cape Province | Villiersdorp | 143 m | 33|58|10|S|19|30|22|E|type:landmark_scale:2000_region:ZA|name=Villiersdorp transmitter}} |
Mpumalanga | Transvaal | Volksrust | 174 m | 27|18|36|S|29|53|15|E|type:landmark_scale:2000_region:ZA|name=Volksrust transmitter}} |
KwaZulu-Natal | Natal | Vryheid | 143 m | 27|44|29|S|30|47|37|E|type:landmark_scale:2000_region:ZA|name=Vryheid transmitter}} |
Gauteng | Transvaal | Welverdiend | 143 m | 26|26|49|S|27|14|53|E|type:landmark_scale:2000_region:ZA|name=Welverdiend transmitter}} |
North West Province | Transvaal | Zeerust (Ottoshoop) | 264 m | 25|51|38|S|26|2|50|E|type:landmark_scale:2000_region:ZA|name=Zeerust (Ottoshoop) transmitter}} |
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1. ^{{cite web|title=Executive team |url=http://www.sentech.co.za/execteam|publisher=Sentech|accessdate=2018-11-17}}
{{SA Government departments |state=expanded}}{{Telecommunications}}