Furuno FR-1710, Operator'S Manual

Page: 15 / 78

1-1
1.1 Turning on the Power
The [POWER] switch is located at the top
left corner of the display unit. Push it to switch
on the radar set. To turn off the radar, push it
again. The screen shows the bearing scale
and digital timer approximately 15 seconds
after power-on. The timer counts down three
minutes of warm-up time. During this period
the magnetron, that is, the transmitter tube,
is warmed for transmission. When the timer
has reached 0:00, the indication STBY ap-
pears, indicating that the radar is now ready
to transmit pulses.
POWER
switch
Figure 1-1 Location of power switch
DANGER
Before turning on the radar, make sure
that there is no one near the antenna.
Serious injury or even death may result if
a rotating antenna strikes someone standing
nearby.
OPERATIONAL OVERVIEW
1.2 Transmitter ON
After the power has been turned on and the
magnetron has warmed, STBY (Standby) ap-
pears at the screen center, indicating the ra-
dar is ready to transmit radar pulses.
Press the [STBY/TX] key to transmit.
When you won’t be using the radar for an
extended period, but you want to keep it in a
state of readiness, place it in standby by
pressing the [STBY/TX] key. The display
shows STBY when the radar is in standby.
Video Lockup Recovery
Video freeze-up or lock-up, can occur unex-
pectedly on digital rasterscan radars. This is
mainly caused by heavy spike noise in the
power line and can be noticed by carefully
watching the nearly invisible sweep line.
If you suspect that the picture is not updated
every scan of the antenna or no key entry is
accepted notwithstanding the apparently
normal picture, do Quick Start to restore
normal operation.
1. Turn off the POWER switch and turn it on
again within 10 seconds.
2. Push the Transmit switch labeled STBY/TX
for Transmit status.