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Summary of Contents for iXBlue Gaps Series
- Page 2 ........................1 1 QUESTIONS CONCERNING BOTH GAPS SYSTEMS ..........5 ? ................... 5 HY IS A APS CALIBRATION FREE APS SYSTEMS ARE CALIBRATION FREE WHY DO NEED TO EXECUTE AN ALIGNMENT ? ............................5 PROCEDURE ? ............5 OW CAN RETRIEVE THE ADDRESS OF MY APS SYSTEM...
- Page 3 A.1.6 N CASE OF UNAVAILABILITY OF SIGNAL IS THERE A WORKAROUND TO BYPASS ? 11 THE INPUT OF SIGNAL WHEN TESTING WITHOUT INDUCING A SYSTEM ERROR MESSAGE A.1.7 ? ......11 BETTER THAN FOR SOME APPLICATIONS A.1.8 ? ................12 HAT IS THE TELEMETRY RATE A.1.9 ? ........
- Page 4 A.1.32 ? ....... 15 HAT IS THE IDEAL DISTANCE BETWEEN LEVEL ARMS TO A.1.33 ?............15 USE MY EXISTING APS CABLES ......................... 15 OMPATIBILITY A.1.34 M5? MT8? MT9? ......15 HICH BEACON CAN WE USE WITH A.1.35 HAS THE SAME ARCHITECTURE AS SO CAN TRACK RD PARTY...
- Page 5 It is mandatory for USBL systems to be calibrated with an INS/AHRS on board of a vessel to give accurate position and attitude to the USBL system. Calibration is not necessary with Gaps M7 because it contains an INS inside of the USBL head. The calibration is done during the manufacture process, making Gaps M7 a precalibrated system.
- Page 6 1s, then you must configure the blanking time to 0.8s. Refer to Gaps user manual for detailed tables for different examples. For preventive maintenance: In order to limit growth on the hydrophones, iXblue recommends the use of the following anti-fouling: International - TRILUX 33 1. Sigman Coatings : blue Sigma-glide 2.
- Page 7 In the command utility window that appears, click Diagnostic button to get the battery voltage. The MT9 does not operate when the battery voltage is lower than 7V. You must apply the same interrogation code to both responder and transponder modes in the configuration software.
- Page 8 • if noise level is 80 dB ref µPa: max range is 2 300 m (example of a vessel manoeuvring, Gaps at a reasonable distance from the thrusters) • if noise level is 90 dB ref µPa: max range is 1 300 m (example of a vessel manoeuvring, Gaps very closed from the thrusters) Gaps M5 Gaps M5 maximum range is 995 m, making it free-of-export restrictions.
- Page 9 Gaps M7 and M5, this can lead to unaccuracy and even to non positioning. If no sound velocity probe is available on the vessel, statistical sound velocity profiles can be used. Contact iXblue to get a tatistical sound velocity depending on your location and season. The different possibilities are : •...
- Page 10 Safari…) and operated from any device that runs an Internet browser (laptop, workstation, computer, mobile, tablet...). It means that there is no restrictions regarding the Operating System. iXblue recommends the use of Firefox because this is our qualification environ- ment.
- Page 11 Gaps M5 can track up to 40 targets and 10 with a common interrogation code. Up to 10 beacons in responder mode. Yes, it does. Gaps M5 offers robust binary data transfer capability with simultaneous posi- tioning. So, it can be use for INS realignment and coupling but also for any type of use in the range of AUV control or status recovering for example.
- Page 12 Instant telemetry rate is 500bits/sec. Effective rate is 160 bits/positioning cycle. Positioning cycle is majored by 5sec to let the transponder time to process the request (sensor meas- urement, fix INS...). For example, if you are positioning an AUV with a positioning cycle of 2 seconds, when telemetry is transmitted to the AUV, the positioning cycle will be 7 seconds.
- Page 13 The internal AHRS is pre-calibrated. Deploying a transponder on the seabed and record Gaps M5 data during a circle and an "8- shape" trajectory is a good way to check the system operational accuracy. Considering the median transponder position is the reality, you will check the position dispersion and accu- racy.
- Page 14 Gaps can transmit the USBL position of the AUV using the telemetry link. The AUV-embed- ded transponder on the AUV will automatically output the USBL position to the INS. This is really easy to configure, and it is fully explained in the Gaps user manual. Gaps MFSK modulation offers doppler resistant codes that can be used to track above 30 knots.
- Page 15 Yes, Gaps M5 and Gaps M7 use the same cable, available in 20, 50 and 95meters versions and extendable to 190m using a repeater box. Gaps M5 is compatible with all iXblue Medium Frequency range, Applied acoustics 1000 series and WB1 modulation (optional).
- Page 16 In addition to the iXblue MF band including tonal, MFSK1 MFSK2 and CHORUS code, it is compatible with WB1 modulation. It is not compatible with cNode and HPR. Yes, the activation of WB1 can be done remotely by entering an activation code into the Gaps.
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