[2] On 1 September 1970, the army's Electronic Defense Center in Anzio formed a Signals Intelligence Team (Italian: Nucleo SIGINT).

On 1 November 1972, the team was expanded to SIGINT Unit and began to build signal interception stations all over Italy.

[3] On 1 September 1976, the SIGINT Unit was renamed 8th Signals Intelligence Battalion "Tonale".

[1] On 12 November 1976, the President of the Italian Republic Giovanni Leone granted with decree 846 the battalion a flag.

[1] On 1 January 1998, the 8th Signals Intelligence Battalion "Tonale" was disbanded and its personnel transferred either to the Italian Army's 33rd Electronic Warfare Battalion "Falzarego" or the Information and Security Department of the Italian Armed Forces' General Staff.