Adjusting Gain, Sea Clutter, Rain Clutter And Tune - Raymarine hsb2 Owner's Handbook Manual

Chapter 3: Standard Radar Operations

Adjusting Gain, Sea Clutter, Rain Clutter and Tune

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,
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.
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
Figure 3-6:
➤ 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
pulse width used.
GAIN
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-
O
O
F
F
F
F
3nm 126°T
Radar Status Bar
D3936-3
Gain, Sea and/or Tune set to Auto
AUTO WKS EX GZ
GST FTC RC IR
FTC on
3-7
Rain on
D3987-1