Controls And Indicators - mcmurdo SMARTFIND G5 EPIRB User Manual

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CONTROLS AND INDICATORS

Manual actvation (switch)
The EPIRB is manually activated break off the anti-tamper tab to gain access to the
manual activation switch beneath.
Automatic Sea switch (contacts)
When the EPIRB is released from its bracket a magnetic switch activates and places the
EPIRB into a "ready" state. It will turn on automatically if the sea switch contacts on either
side of the EPIRB body are immersed in water regardless of the status of the manual
activation switch. The Automatic sea water switch has a built-in time delay to ensure that
it operates correctly in rough seas. The EPIRB must be in the water for at least 2 seconds
before it will automatically activate and it has to be dry for at least 8 seconds before it will
stop transmitting.
TEST button
The test button is used to verify the readiness of the EPIRB.
Strobe light
Four high visibility LEDs flash simultaneously to produce the strobe light zone, this
provides a visual means of locating the EPIRB.
It will start flashing immediately after the EPIRB is switched ON. Its flashing
will pause for a short time when each 406 MHz alert transmission is sent,
which is once every 50 seconds.
Strobe light (EPIRB ON)
1 flash every 3 seconds, pause every 50 seconds
Red LED (indicator)
The red LED illuminates when the EPIRB is first switched ON and will start to flash slowly
once the first transmissions are made.
121.5 MHz transmission is taking place whenever the Red LED is flashing alternately with
the strobe light.
Every 50 seconds, the red LED will flash rapidly followed by a single long flash to indicate
each 406 MHz transmission.
Green LED (GPS version only)
The green LED flashes alternately with the strobe, to indicate that a valid position has
been obtained by the GPS receiver. Every 50 seconds it illuminates for 2 seconds to
indicate that the position is being transmitted on 406MHz. Every 20 minutes the GPS
receiver updates its position information. If a fix is not obtained, the green LED stops
flashing, and illuminates only every 50 seconds, when the previous position information is
transmitted.
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