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 ..................................................................................................................... 1

 

1

 

QUESTIONS CONCERNING BOTH GAPS SYSTEMS .............................................. 5

 

1.1

 

W

HY IS A 

G

APS CALIBRATION FREE

? ........................................................................................... 5

 

1.2

 

I

G

APS SYSTEMS ARE CALIBRATION FREE

,

 WHY DO 

I

 NEED TO EXECUTE AN ALIGNMENT 

PROCEDURE

? ........................................................................................................................................ 5

 

1.3

 

H

OW CAN 

I

 RETRIEVE THE 

IP

 ADDRESS OF MY 

G

APS SYSTEM

? ...................................................... 5

 

1.4

 

H

OW SHOULD 

I

 SET THE BLANKING TIME ON MY 

G

APS FOR THE BEST PERFORMANCE

? ................... 5

 

1.5

 

W

HAT IS THE RECOMMENDED PROCEDURE FOR 

H

YDROPHONE AND TRANSDUCER MAINTENANCE

? .. 6

 

1.6

 

H

OW DO 

I

 CHECK THE BATTERY STATUS OF MY 

MT9? ................................................................... 6

 

1.7

 

W

HAT SHOULD BE THE MAXIMUM VOLTAGE WHEN MY 

MT9

 BEACON IS FULLY CHARGED

? ............... 6

 

1.8

 

W

HAT IS THE MINIMUM VOLTAGE FOR AN 

MT9

 BEACON TO BE OPERATIONAL

? ............................... 7

 

1.9

 

H

OW SHOULD 

I

 CONFIGURE MY 

MT9

 INTERROGATION CODES FOR RESPONDER MODE

? .................. 7

 

1.10

 

W

HAT IS 

G

APS SYSTEMS POSITIONING ACCURACY

? ...................................................................... 7

 

1.11

 

W

HAT ARE 

G

APS 

M7

 AND 

G

APS 

M5

 MAXIMUM RANGE

? ................................................................ 7

 

1.12

 

H

OW ACCURATE MUST MY 

GPS

 LEVER ARM BE

? .......................................................................... 8

 

1.13

 

W

HAT IS THE LONGEST AVAILABLE CABLE FOR 

G

APS SYSTEMS

? .................................................. 8

 

1.14

 

W

HERE IS THE REFERENCE POINT OF THE 

G

APS SYSTEMS

? .......................................................... 8

 

1.15

 

W

HY ARE 

G

APS SYSTEMS THE MOST ADAPTED FOR SHALLOW WATER

? ......................................... 8

 

1.16

 

W

HICH 

N

AVIGATION 

S

OFTWARES ARE COMPATIBLE WITH 

G

APS 

M7

 AND 

M5? ............................... 8

 

1.17

 

D

I

 NEED TO MEASURE THE SOUND VELOCITY PROFILE

? .............................................................. 9

 

1.18

 

H

OW TO OPTIMIZE 

G

APS 

M7

 AND 

M5

 PERFORMANCES

? ............................................................... 9

 

1.19

 

W

HAT TO DO IF POSITIONING ACCURACY IS NOT AS GOOD AS EXPECTED

? ...................................... 9

 

1.20

 

W

HAT COMES IN A STANDARD 

G

APS 

M7/M5

 DELIVERY

? ............................................................... 9

 

1.21

 

W

HAT OPERATING SYSTEM DO 

G

APS 

M7/M5

 SUPPORT 

? .............................................................. 9

 

1.22

 

W

HAT IS THE BEST LOCATION TO MOUNT THE 

G

APS 

M7/M5

 HEAD

? ............................................. 10

 

1.23

 

W

HAT IS THE BEST LOCATION TO MOUNT THE BEACON ON 

ROV? ................................................ 10

 

1.24

 

W

HAT IS THE IMPACT OF 

G

APS 

M7/M5

 MOUNTING MISALIGNMENTS 

(

HEADING

,

 ROLL

,

 PITCH

)? ...... 10

 

1.25

 

D

O THIRD

-

PARTY BEACONS HAVE THE SAME POSITIONING PERFORMANCES COMPARED TO I

X

BLUE 

BEACONS

? .......................................................................................................................................... 10

 

2

 

QUESTIONS CONCERNING GAPS M5 ................................................................... 11

 

2.1

 

P

ERFORMANCE

,

 OPERATION AND APPLICATIONS

 ......................................................................... 11

 

A.1.1

 

H

OW MANY TARGETS CAN 

I

 TRACK WITH 

G

APS 

M5 ............................................... 11

 

A.1.2

 

I

N RESPONDER MODE

,

 HOW MANY BEACONS CAN BE TRIGGED SIMULTANEOUSLY WITH 

THE SURFACE UNIT SYNCH OUTPUT

? .................................................................................. 11

 

A.1.3

 

D

OES 

G

APS 

M5

 SUPPORT DATA TELEMETRY

? ...................................................... 11

 

A.1.4

 

W

HAT IS THE MAXIMUM DATA RATE OBTAINED IN COMMUNICATION MODE

? ............. 11

 

A.1.5

 

C

AN WE USE THE SYSTEM FOR POSITIONING AND COMMUNICATION IN PARALLEL

? .. 11

 

Содержание Gaps M5

Страница 1: ......

Страница 2: ...E GAPS SYSTEMS THE MOST ADAPTED FOR SHALLOW WATER 8 1 16 WHICH NAVIGATION SOFTWARES ARE COMPATIBLE WITH GAPS M7 AND M5 8 1 17 DO I NEED TO MEASURE THE SOUND VELOCITY PROFILE 9 1 18 HOW TO OPTIMIZE GAP...

Страница 3: ...THE UNDERWATER POSITION IS NOT GOOD OR FAR AWAY FROM THE ACTUAL POSITION 13 A 1 17 IF POSITION IS UNSTABLE IN VERY SHALLOW WATERS WHAT WILL BE THE DIFFERENCE PERFORMANCE WISE BETWEEN GAPS M5 AND M7 1...

Страница 4: ...TO MY MBES DOES IT INCLUDE HEAVE 15 A 1 37 DOES IT SUPPORT THIRD PARTY SYSTEMS LIKE CNODE HPR OR SONARDYNE WB 16 A 1 38 DO WE NEED AN UPGRADE FOR WB1 OR IS IT A STANDARD FUNCTION 16 A 1 39 IF NO SCOPE...

Страница 5: ...n for Gaps as it is pre calibrated at our factory with Phins Octans inside This will save a lot of time for users and Gaps can be operational in less than an hour The important point to know is that i...

Страница 6: ...th isopropylic alcohol 5 Wet the surface with aliphatic hydrocarbon solvent 6 Wait for 2 minutes to dry 7 Apply anti fouling according to the manufacturer s recommendations a thin coating 8 Wait for 2...

Страница 7: ...nal to Noise Ratio This Signal to Noise Ratio depends on the beacon transmit level the range to the beacon the noise level and the vertical angle In best case SNR_in 20 dB and in vertical conditions t...

Страница 8: ...ion of Cat 5 Ethernet maximum length If longer distances are required between Gaps head and Gaps box it is possible to connect 2 x 95 m cables through a repeater box total length is then 190 m The ref...

Страница 9: ...horizontal distance between Gaps and source of noise increase Gaps depth If positions are jumpy this probably comes from a multipath reflective surface which is too close from the Gaps M7 or M5 or th...

Страница 10: ...d and the beacon transducer If the Gaps M7 M5 to GPS lever arm is small 5 m Gaps mounting misalignment has low impact If the Gaps M7 M5 to GPS lever is bigger it may have an impact and it is recom men...

Страница 11: ...seconds window Position cycle is default 1 seconds and increased by 5 seconds to allow the beacon to process the data and receive the reply Yes Gaps M5 acoustic communication is telemetry which is a...

Страница 12: ...minal No Gaps M5 is an export free system Gaps M7 is the solution for longer range tracking There is a little accuracy decrease with the elevation angle especially in the target depth estimation Tilti...

Страница 13: ...ry and higher grade hydrophones Gaps M5 can be interfaced to DP systems by delivering through a serial or ethernet link transponder relative position USBL from one transponder deployed on the seabed a...

Страница 14: ...utput data format is given in the user manual This communication is interlaced with the positioning cycle SVP data is loaded into Gaps M5 manual from the MMI or by loading a SVP file Gaps M5 web MMI s...

Страница 15: ...nsure good performances The less the lever arms are the less the error will be We advise to mount the GNSS antenna right above the Gaps head when possible Yes Gaps M5 and Gaps M7 use the same cable av...

Страница 16: ...ng with Cymbal is not in the product development roadmap Gaps M5 first units will be delivered at the beginning of July 2020 You can contact your rental company for futher information Using a flush or...

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