Alinco EDX-3 Руководство по эксплуатации - Страница 8
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ANTENNA SYSTEM
[Examples of mobile and fixed station setup]
Example of grounding
Ground and counterpoise
The EDX-3's ground terminal MUST be connected to ground. Grounding
prevents electric shocks, interference to other equipment and other
problems. Grounding also ensures effective signal transmission.
DANGER! NEVER connect the ground terminal to the following points.
These connections may cause an explosion or electric shocks:
– Gas or electrical pipe
– Fuel tank or oil-catch pan
IMPORTANT! The mounting plate is NOT connected to the EDX-3's internal
Ideal ground points
One of following points is ideal:
– External ground plate
– External copper screen
– External copper foil
Good ground points for ships
If electrically connected to sea water, one of the following points is usable:
– Stainless steel stanchion
– Through mast
– Through hull
– Metal water tank
Undesirable ground points
AVOID the following points. These connections may cause noise or
electrolysis:
– Engine block
– Ship's DC battery ground
7
Ground
Insulate the lead-in cable of the EDX-3 antenna terminal and
antenna element from other metal objects.
While operating outdoor, be sure that no one can access to antenna
NOTE
elements and counterpoise. Touching them may cause serious
injury.
ground.
Be sure to use designated grounding terminal , not the plate
to ground.
Ground