OpenLegislation

Annex TECHNICAL SPECIFICATIONS AND CONDITIONS OF USE OF ACOUSTIC DETERRENT DEVICES

United Kingdom

Original text. Later amendments are not shown.

Any acoustic deterrent devices used in application of Article 2(2) shall meet one of the following sets of signal and implementation characteristics:

Set 1Set 2
Signal characteristics
Signal synthesisDigitalAnalogue
Tonal/wide bandWide band/TonalTonal

Source levels (max-min)

Re 1 μPa@1 m

145 dB130-150dB
Fundamental frequency
  1. (a)

    20-160 KHz

    Wide band sweeps

  2. (b)

    10KHz tonal

10 KHz
High frequency harmonicsYesYes
Pulse duration (nominal)300 ms300 ms
Interpulse interval
  1. (a)

    4-30 seconds randomised

  2. (b)

    4 seconds

4 seconds
Implementation characteristics
Maximum spacing between two acoustic deterrent devices along nets200 m with one acoustic device fixed at each end of the net (or combination of nets attached together)100 m with one acoustic device fixed at each end of the net (or combination of nets attached together)