JRC JMA-5206 Instruction Manual page 56

Trackball
①
Use this trackball to move the cursor mark to an arbitrary point. The trackball can be used for
setting in each mode.
For example, use it to specify the center of a floating EBL or the off-center position.
→For setting cursor, see section 3.10.3 on page 3-104.
[EBL] (Electric Bearing Line) Control
②
Rotates the bearing of an EBL.
The selected EBL status switches back and forth between "center fixed" and "floating" each time
the control is pressed.
→See section 3.5.2 on page 3-24.
[VRM] (Variable Range Marker) Control
③
Changes the range of a VRM.
→See section 3.5.4 on page 3-29.
[MULTI] (Multi-function) Control
④
Each time you press this control, you can change items registered in the multi-function control
function.
An item to switch to is shown put in parentheses in the lower left area of the screen. Give a long
press of the control to open the setup screen for registering items. Give a long press of the control
button again to close this setup screen.
→See section 3.5.17 on page 3-55.
[AUTO-RAIN] (Rain/Snow Clutter Suppression) Control
⑤
Suppresses the clutter echo from rain or snow.
To heighten a suppressing effect, turn the control clockwise.
The clutter suppression mode switches back and forth between MANUAL and AUTO each
time the control is pressed.
→See section 3.4.7 on page 3-18.
[AUTO-SEA] (Sea Clutter Suppression) Control
⑥
Suppresses the clutter echo from the sea surface.
To heighten a suppressing effect, turn the control clockwise.
The clutter suppression mode switches back and forth between MANUAL and AUTO each
time the control is pressed.
→See section 3.4.6 on page 3-16.
[GAIN/PL] (Receiving Sensitivity/Pulse Width) Control
⑦
Controls the radar's receiving sensitivity.
To get higher sensitivity, turn the control clockwise.
To change the transmitter pulse width, press the control.
→For sensitivity, see section 3.4.5 on page 3-15.
→For pulse width, see section 3.5.10 on page 3-46.
[STBY] (Standby) Key
⑧
Use this key to change the power-off state to the power-on state, or the transmission state to the
standby state.
To turn off the power, press the
→See section 3.4.2 on page 3-14.
[TX/PRF] (Transmit/Transmitting Repetition Frequency) Key
⑨
PREHEAT at the upper left of the radar display changes to STANDBY about three minutes
after the power is turned on.
Then, press this key to start transmission.
To fine-tune the transmitting repetition frequency, press the key during transmission.
[STBY]
[TX/PRF]
key and
2─3
key together.