10.4.3 User Manual Contents April 17, 2020
Firmware: 5.2.1 Page 18 of 142
The iWBMSe has the Applanix SurfMaster (AP-18) while the iWBMSc comes with the Sensor
STIM300 IMU and NovAtel antennas for a complete GNSS/INS system. These MEMS-based IMU’s
are housed inside the projector of the wet end assembly for both systems resulting in a very compact
form factor. Some customers request the iWBMSe IMU to be mounted on the front nose (like the
iWBMS/iWBMSh) so that they may be easily upgraded later. The systems are optionally available
with POSPac MMS or Waypoint Inertial Explorer for full positioning and attitude PPP or PPK
solutions.
CAUTION: Voltage Ratings
The DB9 and PPS connections on the SIU are not rated for voltages higher
than 5V. Application of voltages on any pin of the connector over 5V could
damage the system. Check all potential connections for unexpected
voltages. Do not input a PPS pulse into the BNC connection of the
integrated SIU as this could damage the GNSS boards inside the system.
The newly introduced STX comes in two models: 200kHz and 400kHz, with up to a 1x1° beam width
transmission capability. The lower frequency system is optimum for deeper water applications. Like
the iWBMS systems, the STX may be integrated with an inertial measurement unit (Applanix
WaveMaster II or OceanMaster) for a complete bathymetric solution. The dimensions of the STX
with 1x1° projector will be nearly identical to that of the iWBMS. The STX provides a versatile
bathymetric tool – it can be used as a forward-looking sonar or operated as a conventional multibeam
bathymetric sonar. The topside interface unit is identical to the SIU-I-NAV described earlier. To
provide yet another option, the STX, in bathy mode, may be coupled to another NORBIT sonar to
form a dual-head system for increased coverage and faster results. However, due to the STX’s
higher power requirements a dual-head system compromising of at least one STX will require two
topside units. The STX, like other WBMS systems, can be controlled via the WBMS GUI 10.4.0.
Detailed descriptions of the GUI and STX offsets will be in later sections. and the related offsets will
be outlined in a later section.
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