Raymarine Raychart Chartplotter RC530 PLUS Adjusting Gain, Sea Clutter, Rain Clutter and Tune

Chapter 3: Standard Radar Operations 3-7

Adjusting Gain, Sea Clutter, Rain Clutter and Tune

GAIN

Automatic adjustment of Gain, Sea and Tune is available, alternatively you can set any of these parameters to manual and use the trackpad to adjust its value. Rain clutter is adjusted manually using the RAIN or FTC control. GAIN, SEA, RAIN and FTC are accessed from the GAIN key; TUNE is accessed from the

MULTI key.

MULTI

Note: Gain, Sea and Tune can only be adjusted if the control is set to Manual adjustment.

		MANUAL	MANUAL
O	O
F	F	75%	50%
F	F
FTC	RAIN	SEA	GAIN

D3936-3

When you select manual GAIN, SEA or TUNE adjustment the soft key icon shows a vertical slider bar. As you press the trackpad, the value is indicated in the slider.

When you switch FTC or RAIN On, the soft key icon shows a vertical slider bar. As you press the trackpad, the value is indicated in the slider.

If you change the settings, the new GAIN, SEA and TUNE modes (auto or manual) and values remain set even when you turn the radar off and on again; Rain and FTC are reset to Off at power-on. The status bar indicates which controls are switched to Auto or On, as shown in Figure 3-6.

Status Bar				Gain, Sea and/or Tune set to Auto
	3nm	RINGS	126°T	TM TV3 AUTO WKS	EX GZ
		1/2		H-UPGST FTC	RC IR
				FTC on		Rain on D3987-2

Figure 3-6: Radar Status Bar

➤To adjust a parameter:

1. Select a range appropriate to the adjustment you wish to make. The opti-

	mum Tune setting varies slightly for different ranges, depending on the
GAIN	pulse width used.
	2. Press GAIN or MULTI. The slider soft keys are displayed. The last-used
MULTI	slider is highlighted (displayed in inverse video) to show that it is selected.

3.Press the required soft key so that the slider box is highlighted.

The TUNE and GAIN soft keys toggle the control between Auto and Manual mode. The SEA soft key toggles the control between Auto-Harbour, Auto- Offshore and Manual mode. If you select Manual mode the last auto setting is retained. You can only move the slider if the control is set to Manual.

Adjusting Gain, Sea Clutter, Rain Clutter and Tune