West Marine VHF580 사용자 설명서

18

In most situations, the 1 Watt transmission power is all you need. If you find yourself far 

away from other stations and have trouble getting a response, you may need to boost the 

transmission power from 1 Watt to 25 Watts: 

1.  Select the channel you want to transmit on. 

2.  Push and hold 

 for two seconds. The display shows 25 Watts in the upper left 

hand corner.

3.  The transmit power remains at 25 Watts until you change the setting back. Push and 

hold 

 for two seconds. The display shows 1 Watt. 

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Some channels (for example, channels 13 and 67) limit the power of transmission to 1 Watt 

so that there is less interference between boaters attempting to use the channel at the same 

time. If you switch to one of these channels, the radio changes back to 1 Watt automatically. 

See the channel lists beginning on page 

 for a list of power-restricted channels. 

In Triple Watch mode, the radio briefly checks channels 16 and 9 every two seconds. In Dual 

Watch mode, the radio checks channel 16 only. Generally, Triple Watch is used in areas 

where channel 9 is used as a hailing frequency while Dual Watch is used in areas where 

channel 16 is used for distress and hailing. Your radio comes set to use Triple Watch; if you 

want to use Dual Watch instead, you will have to select it in the setup: 

1.  Press and hold 

 to display the normal menu. 

2.  Select Setup and then Dual/Tri Watch. 

3.  Choose Dual Watch and press 

. The radio activates the new setting and returns 

to the Setup menu. 

4.  To reactive Triple Watch, repeat the procedure described above, but choose Triple 

Watch in step 3. 

Dual/TriWatch

Dual Watch

Triple Watch

[Exit]

Dual/TriWatch

Setup

Press and hold - 

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