Gaps M7/M5 are operated through an Internet browser (Firefox, Chrome, Internet Explorer,
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.
As far as possible from any source of noise (thrusters, propellers, engines...) and below the
wash created by the thrusters.
As far as possible from any source of noise (thrusters, propellers, engines...) and on top of
the ROV in order there is direct acoustic line of sight between the Gaps M7/M5 head 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-
mended to enter these misalignments into Gaps M7/M5 web MMI (mechanical installation
parameters).
These misalignments can be estimated at sea (when INS correctly aligned) by comparing
Gaps M7/M5 heading roll and pitch to vessel heading roll and pitch. If the Gaps M7/M5 to
GPS lever arm are really large (20 m or more), it is recommended to compensate this lever
arm into a navigation software (QINSY, NAVIPAC, WINFROG...) and to input into Gaps
M7/M5 this compensated position.
Each type of beacon has its own characteristics (transmit level, directivity, type of signal),
the positioning performances are then different from one type of beacon to the other.
Summary of Contents for Gaps M5
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