Furuno 841, 821 Transmitting, Selecting the Range, Adjusting LCD Backlighting and Display Tone

2.4 Transmitting

After the power is turned on and the mag- netron has warmed up, ST-BY (Stand-By) appears at the screen center. This means the radar is now fully operational. In stand-by the radar is available for use at anytime— but no radar waves are being transmitted.

Press the [ST-BY TX] key to transmit. When transmitting, any echoes from targets appear on the display. This radar displays echoes in four tones of gray according to echo strength.

When you won’t be using the radar for an extended period but want to keep it in a state of readiness, press the [ST-BY TX] key to set the radar in stand-by.

2.5 Selecting the Range

The range selected automatically determines the range ring interval, the number of range rings, pulselength and pulse repetition rate, for optimal detection capability in short to long ranges.

Procedure

Press the [– RANGE +] key. The range and range ring interval appear at the top left cor- ner on the display.

Tips for selecting the range

•When navigating in or around crowded harbors, select a short range to watch for possible collision situations.

•If you select a lower range while on open water, increase the range occasionally to watch for vessels that may be heading your way.

2.6Adjusting LCD Backlighting and Display Tone

The [BRILL] key adjusts the LCD back- lighting in eight levels, including off. The [TONE] key adjusts the tone (contrast) of the display in 32 levels, including off.

Procedure

1)Press the [BRILL] key (or [TONE] key). The display shown in Figure 2-3 appears.

		BRILL
		UP
	TONE	TONE	Item selected
	DOWN	UP
			for adjustment
		BRILL
	19	DOWN
Tone		7	LCD brilliance
setting	<MENU TO EXIT>		setting

Figure 2-3 Display for adjustment of

brilliance and tone

2)Press the [BRILL] key (or [TONE] key) to set level. For fine adjustment, press cursor pad at 12o'clock/6 o'clock for bril- liance and 3o'clock/9o'clock for tone.

2.7Adjusting Control Panel Brilliance

Procedure

1)Press the [MENU] key.

2)Press the cursor pad to select Backlight/ Brilliance and press the [ENT] key.

3)Press the cursor pad to select Panel.

4)Press the cursor pad to select brilliance level; 4 is the highest.

5)Press the [ENT] key followed by the [MENU] key.

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