Written question asked by Norman Baker (Liberal Democrat) on Thursday, 8 July 2004, in the House of Commons. It was due for an answer on Thursday, 15 July 2004. It was answered by Adam Ingram (Labour) on Thursday, 15 July 2004 on behalf of the Ministry of Defence.

Ministry of Defence

Question: To ask the Secretary of State for Defence, what frequency is used by Royal Navy Frigates, including any variation, for the purposes of the Sonar 2087 broadcasts. - (Holding answer 13 July 2004).

Answer: Norman Baker: To ask the Secretary of State for Defence what frequency is used by Royal Navy Frigates, including any variation, for the purposes of the Sonar 2087 broadcasts. [183702] Mr. Ingram: [holding answer 13 July 2004]: Sonar 2087 is a Low Frequency Active Sonar which operates below 3Khz. The precise frequency and bandwidth are classified. I am therefore withholding this information in accordance with Exemption 1 of the Code of Practice on Access to Government Information which relates to defence.

Secondary information