User's Manual

4 Y1-03-0215 Rev. T3
3.2 Activation with GPS
This PLB is equipped with an internal GPS receiver. Once activated the GPS engine will start up and search to find
your LAT/LON and incorporate it into your 406 MHz signal. As soon as the GPS receiver acquires good positioning
data the red LED will stop blinking and the green LED will begin flashing once every 2 seconds. Once good global
positioning data has been obtained, the GPS receiver waits for 20 minutes before looking for new positioning data
again. If for any reason a time period of 4 hours passes without the GPS receiver being able to update the last
good set of GPS coordinates, the 406 message being transmitted will revert to the default data. At this point the
green LED will stop blinking and the red LED will flash once every 2 seconds until new GPS coordinates have been
obtained.
3.3 GPS Receiver Orientation
When activated it is critical that you do not cover the front bottom portion of the PLB with any body part, water,
clothing, etc. The GPS receiver is located under the front bottom portion of the case behind the product logo. To
ensure proper operation it needs to be unobstructed with a clear view to the sky
.
In order to acquire GPS data, you must have your PLB outside with a clear view to the sky.
3.4 406/121.5 Antenna Position
For maximum performance you must deploy the PLB antenna into the proper position (see Figure 2). The antenna
will snap into place and be slightly slanted to the back. Be sure the antenna is positioned facing the sky and avoid
submerging in water.
This device is designed to operate on GROUND and ABOVE GROUND, it is not intended to operate while floating in water.
3.5 Deactivation
To deactivate your PLB, depress the OFF
button for 1 second.
Once off, all blinking LED’s will stop signifying that the PLB is no longer sending your rescue message.
3.6 Self Test
Self test is initiated by holding the test button
for at least ½ second and less than five seconds. Your PLB will
sound an initial beep and green LED (Light Emitting Diode) flash to signify the test has begun. The green LED will
flash a second time to indicate that the self test was successful.
Components Tested
: Data Integrity and Memory; 406 MHz Synthesizer; RF Power/Battery; GPS header
If you encounter a RED LED at the completion of the self test, your PLB has failed, repeat the self test. If the
problem persists, please contact ACR Electronics or an authorized Battery Replacement Center for servicing of
your PLB.
NOTE: During a self test your PLB will send a 406 MHz signal coded as self-test to the satellite system. The
homing signal at 121.5 MHz is inhibited during self test; this allows you to test your PLB any time during the day
without causing any false alarms.
ACR strongly recommends performing the self test on a monthly basis.
Self Test Sequences Test Guide
4 BEEPS
Successful Self Test
Less then 4 BEEPS
Failed Self Test
4 BEEPS
Successful Test – At least 1 hour of battery power has been depleted,
have battery replaced.
Less then 4 BEEPS
Failed – Return unit to ACR for service. At least 1 hour of battery power
has been depleted, have battery replaced.
3.7 Battery Witness Seal Life
If your PLB flashes an initial Red LED at the beginning of the Self Test, this indicates that your electronic witness
has been broken and you have used more than 1 hour of battery life. While the PLB will still operate normally in an
emergency, ACR strongly recommends you have your battery replaced and the electronic witness reset to ensure
that you will have 24 hours of battery power should you ever need to activate your unit in an emergency