4.4GPS Receiver Orientation
When activated it is critical that you do not cover the |
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beacon with any body part, water, clothing, etc. The GPS |
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receiver is located under the bottom portion of the case |
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behind the ResQFix™ or MicrOFix™ logo (see figure 4). |
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To ensure optimum performance of the GPS receiver, the |
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beacon needs to have an unobstructed view of the sky. |
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Avoid submerging the GPS receiver in water if possible. |
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Water will shield and inhibit the GPS receiver and may |
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cause difficulties obtaining your GPS coordinates. Avoid |
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leaning over the beacon to view blinking LED as you may | Figure 4 – GPS Receiver Location | |
shield the GPS reception. | ||
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4.5Deactivation
To deactivate your beacon, depress the ON/OFF 
button for 1 second. Once the beacon is deactivated, all blinking LED’s will stop signifying that the beacon is no longer sending your distress message.
4.6Self Test
ACR strongly recommends performing the self test once per month, or at least two weeks prior to a trip allowing enough time for service should your beacon require it.
A self test is initiated by holding the self test button 
for at least ½ second and less than 5 seconds. Your beacon will sound an initial beep and flash the green LED to signify the test has begun. The green LED will flash a second time to indicate that the self test was successful.
NOTE: The beep is a very high pitch that many people are unable to hear.
Components Tested: Data Integrity and Memory; 406 MHz Synthesizer; RF Power/Battery; GPS header
If a RED LED flashes at the completion of the self test, your beacon has failed. Repeat the self test. If the failure persists, contact ACR Electronics or an authorized Battery Replacement Center for servicing of your beacon.
NOTE: During a self test your beacon will send a 406 MHz signal coded as
Self Test Sequences |
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| Self Test Guide ( Green LED Red LED) | |
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Green LED, 4 BEEPS, | Green LED | Successful Self Test | ||
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Green LED, Less than 4 BEEPS, | Red LED | Failed Self Test – Return beacon to ACR | ||
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Red LED, 4 BEEPS, | Green LED | Successful Self Test – At least 1 hour of battery | ||
power has been depleted, have battery replaced. | ||||
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Red LED, Less than 4 BEEPS, | Red LED | Failed self test – Return unit to ACR for service. | ||
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4.7Battery Witness Seal Life
If your beacon 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 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 24 hours of battery power.
4.8GPS Testing
This test is NOT required as 100% of all GPS receivers that leave ACR have been tested to ensure they perform correctly. However, if you would like to ensure your GPS receiver is working, please follow these instructions very closely.
CAUTION: To conserve battery power the following test should not be performed more than once during the
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