Rain clutter may be useful if your looking to avoiding getting wet or avoiding squall but the rain or cloud returns may be hiding some contacts.  Rain clutter is generally off by default.  When setting the amount of rain clutter, turn it up till the rain has disappeared or barely visible.  If you turn it up too much you could reduce the returns from shelving coast lines, this is visible in this example, look at the lower part of the coastline  as you increase the effect.

EBL

Sea clutter is caused by the returning echoes from nearby waves and can mask close targets.  It works by reducing the gain of close returning echoes.  It is normally off by default.  When using anti sea clutter, change it till the sea clutter reduces and nearby targets can be seen.  Turning it up too far could make close contacts disappear. 

Ready pressPower to Transmit

Tuning ensures that the receiver is tuned to the transmit frequency.  The transmit frequency can change with changes in temperature affecting the magnetron.  The best way to tune  the RADAR is to chose a weak contact on a medium or long range.  Adjust up or down until that contact is the best you can get.  Allow 3 seconds between each change.  Once you  are happy with the tuning you may have to revisit the gain again.

1

Range 6 Nm

3

  5s

  4s

  3s

  2s

  1s

Nm

RADAR Demonstartor.  Each button will demonstrate a differnet function of the RADAR Feature working at present: Power up, Gain, Rain, Sea, Tune and EBL/VRM

VRM

On power up the RADAR will take 10 seconds to warm up this makes sure the Magnetron gets to the correct temperature and therefore transmits at the correct frequency.  The RADAR will remain in this Standby state until you press power again to Transmit. 

Standby Warming

10s

  9s

  8s

The EBL and VRM are very useful to the get range and bearing of a contacts or land.  Use the up and down arrows to adjust the VRM, left and right  to adjust the EBL.   If you remember, the beam width may be quite large so to get the best bearing of a  contact set the EBL to the centre of it.

  7s

  6s

The Gain amplifies returning signals especially the weak ones from longer ranges.  To set the gain correctly.  Turn it up till you get speckles all over the screen then turn it down until the speckeles disappear from most of the display.  In this case you will probably get best results at either 40% or 50%.