(1)This signal cable run between the antenna and the display comes in lengths of 10 m, 15 m, 20 m and 30 m. whatever length is used it must be unbroken; namely, no splicing allowed.
(2)Deposits and fumes from a funnel or other exhaust vent can adversely affect the aerial performance and hot gases may distort the radiator portion. The antenna unit must not be mounted where the temperature is more than 70°C
Mounting the antenna
Radome cover
1. Open the antenna unit packing box carefully.
2.Unbolt the four bolts at the base of the radome to remove the radome cover.
Antenna unit The mounting surface must be parallel with the waterline and provided with five holes whose dimensions are shown in the outline drawing attached at the end of this manual.
The unit is adjusted so a target echo returned from the bow direction will be shown on the zero degree (heading line) position on the screen. When drilling holes, be sure they are parallel with the fore and aft line.
3.Prepare a platform of 5 to 10 millimeters in thickness for the antenna unit.
A mounting bracket for mounting the antenna unit on a sailboat mast is optionally available. (Refer to page
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Cable |
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entry |
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M10 x 25 Hex bolt | Platform |
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Antenna unit, cover removed Antenna unit | How | to | fasten | the | radome | base | to | the | |
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Wiring and final preparation
4.Drill a hole of at least 20 millimeters diameter through the deck or bulkhead to run the signal cable between the antenna unit and the display unit. (To prevent electrical interference avoid running the signal cable near other electrical equipment and in parallel with power cables.) Pass the cable through the hole. Then, seal the hole with sealing compound for waterproofing.
5.Remove two shield covers in the radome.
6.Remove the cable clamping plate by unfastening four screws and removing a gasket.