Installation
9390 Reference manual 2-13
Wooden or fibreglass hulled vessels present more of a
grounding problem. Use bonding straps to connect the
antenna tuner and all other earth points directly to a radio
earth plate attached to the outside of the hull below the water
line.
Antenna
9103 or 4203
antenna
tuner
9390
transceiver
Control
head
Do not earth the transceiver
Connect earth points to one or
more radio earth plates using
copper bonding straps
Earth plates may
be linked
Code
733B (as
required)
Figure 2.6
General grounding requirements for wooden
or fibreglass hulled vessels
The earth plate may be a 1mm thick copper sheet of at least
0.25 square metres or an E-plate, such as accessory code 157.
Multiple earth plates may be an advantage.
Bonding should be with 25–50mm wide copper straps for
lengths up to two metres. Use proportionately wider or
multiple straps for longer runs. A thickness of 0.5mm is
sufficient since the RF current only flows on the conductor
surface. Alternatively, you can use 20mm diameter copper
tubing.
Run one or more bonding straps from the earth plate to the
antenna tuner. Where possible, joints should be brazed and
inspected regularly for corrosion.
To Next Page
Loading...
Need help?
General
