Gps Self Testing (Gnss Self-Test) - ACR Electronics Cobham ResQLink PLB-375 Product Support Manual

6. Testing Your Beacon

GPS Self Testing (GNSS Self-Test)

The GPS receiver is located under the bottom front portion of
the case. It is imperative that the receiver is not obstructed
during Self-Test or activation to ensure that the GPS receiver is
acquiring your latitude (LAT) and longitude (LON) position. This
test must be performed outside with a clear view of the sky.
This beacon has enough excess battery life to perform 12 GPS
self tests over the 5 year life of the battery. Once this GPS
testing feature reaches 12 times, the feature will be disabled by
internal software.
To perform a GPS Self Test:
1. Unclip the antenna latch from the case.
2. Move antenna into the upright position
3. Depress the Test button for 5+ seconds
3 Green LEDs will flash followed by a continuous series of RED
flashes until GPS has been downloaded into the beacon. Once
valid GPS data has been obtained, a long GREEN flash will
appear followed by a flash of the Strobe Light. This indicates a
successful GPS Self Test. This will take no longer than two
minutes.
3 Red LEDs at the start of test indicates that 12 GPS test have
been performed; the test will not run.
If at the end of the GPS Self Test, a long Red light appears, this
indicates that the beacon was unable to find your GPS
coordinate.
Quick Tip:
A Basic Self Test will take
roughly 10 seconds to
perform and complete.
A GPS Self Test will take
roughly 45-120 seconds to
perform and complete.
Battery Witness Seal Life
If your beacon flashes an initial Amber light 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 beacon will still operate normally in a distress situation, ACR
strongly recommends you have your battery replaced and the
electronic witness reset to ensure that you will have at least 24
hours of battery power.
Light Scheme
Every 3
seconds
Every 3
seconds
Result Light Meaning
GPS Downloaded Data and
Sent in Test Burst
GPS Unable to Download
Test Not Initiated: GPS
Self Test Limit Exceeded
13