User manual SIMRAD PI HBU REV A

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[. . . ] Instruction manual Simrad PI HBU Hydrophone Booster Unit www. simrad. com TECHNOLOGY FOR SUSTAINABLE FISHERIES Simrad PI HBU Hydrophone Booster Unit Instruction Manual This document allows you to install and put to use the PI HBU (Hydrophone Booster Unit). 326153/A 08 January 2008 Document history Document number: 326153 Rev. A 8 January 2006 First version. Copyright ©2008 Kongsberg Maritime AS The information contained in this document remains the sole property of Kongsberg Maritime AS. No part of this document may be copied or reproduced in any form or by any means, and the information contained within it is not to be communicated to a third party, without the prior written consent of Kongsberg Maritime AS. The document, or any part of it, may not be translated to any other language without the written approval from Kongsberg Maritime AS. Disclaimer Kongsberg Maritime AS endeavours to ensure that all information in this document is correct and fairly stated, but does not accept liability for any errors or omissions. Warning The equipment to which this manual applies must only be used for the purpose for which it was designed. [. . . ] 7 Simrad PI32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Simrad PI44 and PI54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 326153/A 3 Simrad PI HBU 4 326153/A About ABOUT This document allows you to install and put to use the PI HBU (Hydrophone Booster Unit). Figure 1 PI HBU (Hydrophone Booster Unit) Figure 2 Commercial power supply provided with the PI HBU 326153/A 5 Simrad PI HBU PI HBU (HYDROPHONE BOOSTER UNIT) The PI HBU (Hydrophone Booster Unit) is a small and compact unit providing amplification for the weak signals from the PI hydrophone. The PI HBU is powered by a separate power supply. Prerequisites for use In order to use the PI HBU your PI receiver must operate with the following software version: · · · PI32: Not applicable PI44: DSP (Digital Signal Processor) version 1. 11 (or later) with MMI version 0. 50 (or later). PI54: DSP (Digital Signal Processor) version 1. 11 (or later) with MMI version 0. 50 (or later). Why use the PI HBU On the PI44 and PI54 systems, software release 1. 08 provided an increased range capability. By using the PI HBU (Hydrophone Booster Unit) as well the systems will offer additional range, and they will be more tolerant for noise. On PI32 systems, the PI HBU (Hydrophone Booster Unit) will also provide increased range capability. Why not use the PI HBU For the majority of PI users experiencing adequate performance, and with no need to increase the range capability, the PI HBU (Hydrophone Booster Unit) will not be required. When to use the PI HBU The PI HBU (Hydrophone Booster Unit) is recommended if the reception of the PI system is cluttered with noise from interference, or with noise from other acoustic systems on the vessel, such as sonars, echo sounders or logs. The PI HBU (Hydrophone Booster Unit) may also prove useful if you experience noise from the vessel propellers. 6 326153/A Recommended parameter settings RECOMMENDED PARAMETER SETTINGS When the PI HBU (Hydrophone Booster Unit) is put to use, the recommended parameter settings are changed. Simrad PI32 The following Receiver setup parameters are recommended when the PI HBU (Hydrophone Booster Unit) is put to use. · Interference filter: OFF ­ Switch ON if interference is still a problem. As an alternative, you may keep the filter OFF, and increase the Detection threshold (DT) setting in steps of 2 dB until the interference disappears. · Interference filter level: 9 ­ If you switch the interference filter ON, you may change the level to 8. · · · AGC: OFF Manual gain: 20 dB Max shooting speed: 1 kn ­ In order to maintain best possible reception during the shooting you may increase this setting to 5 kn. · Detection threshold (DT): 8 dB The other settings are not important. Figure 3 PI30 Receiver Setup, example Simrad PI44 and PI54 When the PI HBU (Hydrophone Booster Unit) is put to use, the recommended parameter settings are changed. 326153/A 7 Simrad PI HBU · Interference filter: OFF ­ Switch ON if interference is still a problem. As an alternative, you may keep the filter OFF, and increase the Detection threshold (DT) setting in steps of 2 dB until the interference disappears. [. . . ] Connect the power supply to AC mains, and connect the power cable to the socket (C) on the PI HBU unit. Power up your PI system. 326153/A 9 ©2008 Kongsberg Maritime S im r a d Ko n g s b e r g M a r it im e A S S t ra n d p rom e n a d e n 5 0 P. Bo x 1 1 1 N- 3 1 9 1 H o r t e n , N o r w a y Te le p h o n e : + 4 7 3 3 0 3 4 0 0 0 Te le fa x : + 4 7 3 3 0 4 2 9 8 7 w w w . [. . . ]

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