Editing Eiffel Tower (section)

==Communications==
[[File:Tour Eiffel le sommet 08-2015 (cropped).jpg|thumb|right|upright|Top of the Eiffel Tower with antennas]]

The tower has been used for making radio transmissions since the beginning of the 20th century. Until the 1950s, sets of aerial wires ran from the [[cupola]] to anchors on the [[Avenue de Suffren]] and Champ de Mars. These were connected to [[longwave]] transmitters in small bunkers. In 1909, a permanent underground radio centre was built near the south pillar, which still exists today. On 20 November 1913, the [[Paris Observatory]], using the Eiffel Tower as an aerial, exchanged wireless signals with the [[United States Naval Observatory]], which used an aerial in [[Arlington County, Virginia]]. The object of the transmissions was to measure the difference in longitude between Paris and Washington, D.C.<ref>{{cite news |title=Paris time by wireless |newspaper=The New York Times |date=22 November 1913 |url=https://query.nytimes.com/gst/abstract.html?res=9801E2D71E3BE633A25751C2A9679D946296D6CF |page=1}}</ref> Today, radio and digital television signals are transmitted from the Eiffel Tower.

===FM radio===
{| class="wikitable sortable"
!Frequency
!kW
!Service
|-
|87.8&nbsp;MHz
|10
|[[France Inter]]
|-
|89.0&nbsp;MHz
|10
|RFI Paris
|-
|89.9&nbsp;MHz
|6
|[[TSF Jazz]]
|-
|90.4&nbsp;MHz
|10
|[[Nostalgie]]
|-
|90.9&nbsp;MHz
|4
|[[Chante France]]
|}

===Digital television===
A television antenna was first installed on the tower in 1957, increasing its height by {{convert|18.7|m|ft|abbr=on}}. Work carried out in 2000 added a further {{convert|5.3|m|ft|abbr=on}}, giving a total height of {{convert|324|m|ft|abbr=on}}.<ref name="allyouneed"/> Analogue television signals from the Eiffel Tower ceased on 8 March 2011.
{| class="wikitable sortable"
!Frequency
!VHF
!UHF
!kW
!Service
|-
|182.25&nbsp;MHz
|6
|{{n/a}}
|100
|[[Canal+ (French TV channel)|Canal+]]
|-
|479.25&nbsp;MHz
|{{n/a}}
|22
|500
|[[France 2]]
|-
|503.25&nbsp;MHz
|{{n/a}}
|25
|500
|[[TF1]]
|-
|527.25&nbsp;MHz
|{{n/a}}
|28
|500
|[[France 3]]
|-
|543.25&nbsp;MHz
|{{n/a}}
|30
|100
|[[France 5]]
|-
|567.25&nbsp;MHz
|{{n/a}}
|33
|100
|[[Métropole Télévision|M6]]
|}