| Set 1 | Set 2
|
| SIGNAL CHARACTERISTICS
|
* Signal synthesis | Digital
| Analogue |
* Tonal/wide band | Wide band / tonal
| Tonal |
* Source levels (max - min) re 1 Pa@1m |
145 dB | 130-150 dB |
* Fundamental frequency | a) 20 - 160 KHz wide band sweeps
b) 10 kHz tonal
| 10 kHz |
* High-frequency harmonics | Yes
| Yes |
* Pulse duration (nominal) | 300 ms
| 300ms |
* Interpulse interval | a) 4 - 30 seconds randomised;
b) 4 seconds
| 4 seconds |
| IMPLEMENTATION CHARACTERISTICS
|
* Maximum spacing between two acoustic deterrent devices along nets
| 200 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)
|