Sonarmite Plus setup in Trimble Access

In Access, navigate to Menu/ Settings / Survey Styles/ select or copy the survey style you would like to use for the Hydro survey.

Select the Menu/Settings/Connections click on the Bluetooth Tab.
Turn on the Sonarmite Plus and connect the Transducer cable to the connector
designated as Sonar/Charger.
The Bluetooth light should begin blinking blue.
Select the Search button at the bottom of the Bluetooth connection screen
Hydrolitexxx should populate in the discovered devices,
Select the Hydrolite and then select Pair at the bottom corner of the screen
Follow through with the connection prompts until you are asked for the Bluetooth
password or PIN
The Bluetooth password/PIN is in all capital letters: SEAFLOOR
Select Accept.
On the next connection window select your device type as Connect to echo sounder,
then select Accept again on the connections page.
To use the Sonarmite, start your survey with the survey style you added the Sonarmite
settings to. Start your base and rover or your VRS rover as you normally would.
Once you have initialization, you can go to Menu/Measure/and then Continous topo.
Select your preferred continuous topo settings for data collection, i.e. a set time, set
distance, Point range to begin with, code and antenna height. Begin your survey. You
should see depths being referenced on the depth field on the screen.

Additional settings and tips

To measure your rod height, you will need to measure to the bottom of the transducer

that is threaded on at the base of the pole. The sonarmite comes with 3 x 2’ pole

sections. If you are using two sections of pole, your rod height would be 4’ plus the

height of the transducer at the base of the pole. The green Transducer height is 0.54sft.

In this example, your rod height would be 4.54sft. If using 3 sections of pole, rod height

would be 6.54sft.

Assemble the pole sections into the Transom mount included in the sonarmite case.
The transducer should be adjusted in the transom mount and lowered down into the

water to your preferred depth. If you are trying to calculate the depth of the water, you

will need to get an accurate draft measurement from the water surface down to the

bottom of the transducer. This can later be added to the recorded depths to determine

the actual water depth.

For the best results, the sonar should be kept at a steady slow pace. This will ensure that

you do not form an air bubble around the transducer which can result in no depth

readings.

You will need to maintain more than a foot of distance between the bottom of the

transducer and the surface that you are measuring to. Failure to maintain the necessary

distance will result in false readings. The blanking distance on the transducer is 300mm

or 1.05 ft. Any depth readings captured within that 0-1.05 ft will populate as 1.05’ in

depth in your depth export. Any measurement with a null value or a depth between 0

to 1.05 ft will need to be omitted from your final data set.

To export your data, you will need to run a custom style sheet export found at Stylesheets. These style sheets will need to be added into the Trimble Data/System Files folder on your data collector.

For exporting the Sonarmite Plus, you will need to run the “Comma Delimited with

Elevations and depths” export. This export will have the elevation and depth values

separated in the CSV so that you can QC your data and omit the erroneous/blanking

distance shots. After the data has been cleaned up, you can then subtract the depths

from your elevations within M.S. Excel to get the true profile elevation.