Internal Gps Test - ACR Electronics GLOBALFIX 406 EPIRB WITH INTEGRAL GPS Product Support Manual

Figure 4
If the thumb switch is accidentally or inadvertently put in the vertical or test position (not in the OFF or ON
position), the beacon would still be turned ON and will drain the battery. It is very unlikely that this would
happen, however, if this should occur, the beacon will sound a beep once per second and will alternately flash
the red and green LED's at a rate of one per second until the beacon is turned OFF. It is important that the
beacon be turned OFF immediately by lowering the thumb switch to the OFF position, (thumb switch at rest in
the front position) if this alert is ever obtained.
Category 1 Self Test Plug
Remove the new Self Test Plug (See Figure 5) on the front cover and have instant access to perform self
tests. Be sure to reattach the plug to protect the beacon from the elements. Note: You may not be able to see
the LEDs but you will hear the beeps.
4.9

Internal GPS Test

Warning: The following test should never be performed more than once during the five-year life of the battery
pack! Send the unit to ACR if test needs to be repeated. This test must be performed outside with a clear and
unobstructed view of the sky, preferably not in direct sunlight as it may be difficult to see the LEDs.
Performing the Internal GPS Test
If the thumb switch is held in the vertical position after the full functional self-test has finished, the buzzer will
beep and the red LED will light simultaneously. This beep and simultaneous red LED indicates that the GPS
has been turned ON and a live test of the internal GPS has begun. At this point the thumb switch should be
allowed to return to its normal OFF position. The GPS will remain ON until good positional data has been
obtained or 10 minutes has elapsed. If good positional data has been obtained, the GPS will be turned OFF
and the green LED will light for at least 3 seconds and the strobe will flash once. This positional data is not
saved for use when the beacon is turned ON. A green LED and strobe flash indication is proof that the GPS is
TEST
Initial Test Start
Check Data Integrity
Check 406 MHz Synthesizer
Check RF Power/Battery
Check Internal GPS
Successful Test
NOTE:
The homing beacon at 121.5 MHz is inhibited during self test.
It is strongly recommended to perform the full functional self test on
the GlobalFix™ on a monthly basis
7
SUCCESS
Red LED
Beep, Red LED
Beep, Red LED
Beep, Red LED
Beep, Red LED
Green LED, Strobe
Y1-03-0157 Rev. F
FAIL
Test stopped
Test stopped
Test stopped
Test stopped