ACR Electronics PLB-350C Installation instructions

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PRODUCT SUPPORT MANUAL
PLB-350C
406 MHz Personal Locator Beacons
Product No.: 2884 (AquaLink™ View)
2885 (SARLink™ View)
Y1-03-0244, Rev. E

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CAUTION: Before proceeding to install, test or use your new
ACR Electronics‟ product, please read this Product Support Manual
in its entirety.
If you have questions regarding the contents of the manual or
something not covered in the manual, please contact our Technical
Service Department at ACR Electronics, Inc., Telephone +1 (954)
981-3333. You can also visit our website at
www.acrelectronics.com and access the Frequently Asked
Questions (FAQs) section for further information. If in the future you
lose this manual, you may access and print a replacement on the
ACR website.
About Cobham Beacon Solutions, ACR Products
Cobham Beacon Solutions, ACR Products
www.acrelectronics.com, designs and manufactures a complete
line of safety and survival products including EPIRBs, PLBs, AIS,
SARTs, Strobe Lights, Life Jacket Lights, Search Lights and safety
accessories. The quality systems of this facility have been
registered by UL to the ISO 9001:2008 Series Standards.
Recognized as the world leader in safety and survival technologies,
ACR has provided safety equipment to the aviation and marine
industries as well as to the military since 1956.
About Cobham plc
Cobham plc is an international company engaged in the
development, delivery and support of advanced aerospace and
defense systems for land, sea, air and space. The company has
four divisions that collectively specialize in the provision of
components, subsystems and services that keep people safe,
improve communications and enhance the capability of aerospace
and defense platforms.

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Table of Contents
STEP ONE - REGISTERING YOUR BEACON ______________________ 4
STEP TWO - HOW THE BEACON WORKS _______________________ 6
STEP THREE - MAINTAINING YOUR PLB ______________________ 15
APPENDIX A - ACCESSORIES _______________________________ 19
APPENDIX B - USER INTERFACE: SPECIAL ICONS ________________ 20
APPENDIX C - USER INTERFACE: DIGITAL DISPLAY- OPERATION ___ 21
APPENDIX D - USER INTERFACE: DIGITAL DISPLAY - SELF-TEST ____ 24
APPENDIX E - USER INTERFACE: DIGITAL DISPLAY -LONG GPS TEST_ 27
APPENDIX F - THE COSPAS-SARSAT SYSTEM ___________________ 28
APPENDIX G - TECHNICAL SPECIFICATIONS____________________ 29
APPENDIX H - WARRANTY, NOTICES _________________________ 30
APPENDIX I –RESTRICTIONS ON USE and EC DOC ______________ 31
PLEASE READ ALL WARNINGS, CAUTIONS AND
NOTES CARFULLY

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STEP ONE - REGISTERING YOUR BEACON
Why is registration important?
As the owner of this 406 MHz beacon, it is mandatory that you register it
with the PLB national authority of your country: It is the law. Please note
that all 406 MHz beacons are required to have their registration updated every
two years by the owner.
HOW REGISTRATION WORKS:
All 406 MHz beacons transmit a Unique Identifier Number (UIN) when
activated. This UIN is programmed into the beacon based on the country in
which the beacon is registered, thus authorities are able to determine which
country‟s database will have your registration information. SAR forces will have
information as to who you are as the owner of the beacon, the name and type
of vessel that you have (if applicable), your address, and who to contact that
might know of your current situation - but only if your beacon has been properly
registered. Valuable search and rescue resources are wasted every year
responding to false alerts, and registering your beacon helps to resolve this
quickly.
Your personalized ID code
programmed inside each beacon is
transmitted to Search and Rescue
(SAR). SAR forces use this code to pull
up your registration to find out valuable
information about who needs help.
YOUR RESCUE WILL
BE DELAYED IF YOUR
BEACON ISN‟T PROPERLY
REGISTERED!

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What country should I register in?
The beacon must be registered in the country of the owner‟s residence. If the
beacon is not programmed to that country‟s code and protocol, and the
residence is outside of the USA, the beacon needs to be reprogrammed.
Additionally, the beacon must be reprogrammed if you, as the owner, move out
of the country where the beacon is registered. To verify the country for which a
beacon is programmed, see the label with the UIN (Unique Identification
Number) on the back of the unit.
How do I register?
Registration in the United States
The national authority that accepts registrations in the United States is the
National Oceanic and Atmospheric Administration (NOAA).
There are three ways to register:
1. The fastest and easiest way to register is online at
www.beaconregistration.noaa.gov/.
2. Faxing a registration is also acceptable. Fax the registration form to the
fax number on the top of the registration form.
NOTE: Do not confuse the registration form with the ACR Electronics warranty
card.
3. If online or fax registration is not available, mail the registration form
with the pre-addressed, postage paid envelope to:
SARSAT Beacon Registration NOAA
NSOF, E/SP053
4231 Suitland Road
Suitland, MD 20746
All registration forms will be entered in the 406 MHz beacon registration
database within 48 hours of receipt. The information you provide on the
registration form is used for rescue purposes only.
A confirmation letter, a copy of the actual registration and a proof-of-registration
decal will be mailed to you within two weeks. When you receive these
documents, please check the information carefully, and then affix the decal
to your beacon in the area marked “BEACON DECAL HERE.” It is very
important that the proof of registration decal matches the UIN on the
beacon. If you do not receive confirmation back from NOAA within two weeks,
call toll free [phone] for assistance.

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Registration in Canada
Canadian residents can register online at:
http://canadianbeaconregistry.forces.gc.ca/ or contact the Canadian Beacon
Registry by phone at: 877-406-7671 or by fax at: 877-406-3298. Canadian
registration forms can also be mailed to:
Canadian Beacon Registry
CFB Trenton, PO Box 1000 Stn Forces
Astra, Ontario K0K 3W0
Registration in Other Countries
In countries other than the United States and Canada, 406 MHz beacons are
registered with that country‟s national authority at the time of purchase. The
sales agent may have assisted you in filling out the forms and sending them to
the country‟s national authority. Alternatively, many countries allow online
registration in the International 406 MHz Beacon Registration Database (IBRD)
at www.406registration.com.
To verify that the unit is properly programmed for your country, view the UIN
label on the back of the unit. In the event that the beacon is not programmed for
your country, the sales agent (if properly equipped) can reprogram the unit for
the correct country.
STEP TWO - HOW THE BEACON WORKS
NOTE: Please be aware that, throughout your user manual, reference is made
to the beacon „BEEPING‟. Please note that the „beeps‟ are of a very high
pitched tone that some people are unable to hear. Be aware that the beeps are
not the indication of a fully functional beacon but only a guidance to
Technicians and Engineers to troubleshoot the unit.
1. How your beacon summons help
406 MHz beacons are a type of portable emergency equipment that transmits a
distress signal to search and rescue (SAR) organizations. The purpose of these
beacons is to aid SAR teams in tracking and locating ships or individuals in
jeopardy as rapidly as possible.
The 406 MHz frequency is a worldwide dedicated emergency frequency that is
detected by a network of satellites called the Cospas-Sarsat system. This
satellite system was established by, and continues to be supported by, its
primary benefactors - the USA, Russia, Canada and France. The Cospas-
Sarsat system has saved over 28,400 lives - and counting - since its inception.
See Appendix or the Cospas-Sarsat website for more information about the
system at www.cospas-sarsat.org.

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When a 406 MHz beacon is activated, the digital distress message is sent to
Cospas-Sarsat satellites and, in turn, the distress message is relayed to SAR.
The distress message contains the beacon UIN and on some models the GPS
location of the beacon. Additional information about the beacon is accessed by
SAR from the beacon registration database. At the same time the 406 MHz
signal is activated, a 121.5 MHz signal is turned on. The 121.5 MHz signal is
used by SAR to home in on the beacon as they approach it.
The 406 MHz signal is detected by multiple satellites and from that information
the location of the beacon can be calculated. This data alone is sufficient for
SAR to find persons or ships in distress in a reasonable timeframe. However,
as a further enhancement, some beacons have a GPS engine onboard. This
feature allows the beacon to acquire current location coordinates from an
internal GPS receiver. The purpose of this feature is to send an even more
precise location of the beacon to the satellites, i.e., latitude and longitude data.
This helps SAR to reach the location even faster.
2. Internal GPS position system
The PLB-350C is fitted with an internal GPS receiver that will download the
coordinates (latitude and longitude) of the beacon‟s position on the globe, to be
transmitted to the Cospas-Sarsat emergency system.
When the beacon is activated, the internal GPS immediately attempts to
acquire positional coordinates. GPS coordinates can be acquired any time that
the GPS is on, but only valid data is saved. Once the beacon acquires valid
coordinates, the data is included as part of the next transmitted 406 MHz digital
message.
The internal GPS operates on a schedule during a beacon activation. The GPS
is on for a time, actively acquiring coordinates, and off for 20 minutes, in a
standby state. The schedule is designed to conserve battery but, at the same
time, assure that navigational coordinates are regularly updated.
3. Optional beacon management and testing services
Additional features and through satellite testing services are available for this
beacon when you subscribe to the SafeLife System. When you sign up for this
optional service you can test your beacon and have confirmation messages
sent to your cell phone or email. Expanded services also will include friends
and family contact information for check in messaging. Visit 406Link.com for
complete details. (This service is not required for your beacon to function as a
Personal Locator Beacon.)

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4. Anatomy of your beacon
NOTE: The appearance of your beacon may vary from this picture.
Figure 1
Antenna
Latch
Antenna
latch
Digital display
FRONT BACK
GPS
antenna
location
Antenna:
Wrapped
around
beacon
UIN Label: Applied at
the factory, the 15
character hexadecimal
number is unique to
each beacon.
Activation
button cover
Battery expiration label
with the month/ year
the battery needs to be
replaced.
Keypad
Multi-language label:
This optional label may
be applied for ease of
use.
Registration decal
supplied by some
countries: Once the
beacon is registered,
the label goes here.

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5. Distinguishing PLB Features
The distinguishing features available on your PLB vary with the particular model
that you selected. The following table summarizes the similarities and
differences in models.
PLB-350C
Product
names
AquaLink™View 406
GPS PLB
SARLink™ View 406 GPS PLB
ACR Product
Number
2884
2885
Unique
features
Digital display, LED strobe, 60 GPS acquisition tests
GPS engine
Internal, 66-channel GPS receiver
Top case
Clear
Buoyant
Yes
No
Included
Accessories
Multi-Function Belt Clip
Optional
Accessories
Flotation pouch (ACR P/N 9504)
6. Digital Display
The digital display in the beacon is used as a secondary visual aid, supporting
the green/red LED and the audio tone, which indicate the status of the beacon
during testing and during emergency operation.
The messages on the digital display typically appear as one or two words at a
time, until the entire message has been displayed.
When the beacon is
activated, the display will
show the message PLB ON.
The beacon will begin to
send 406 MHz emergency
signal bursts, at which time
the display provides other
messages including 406
SENT, 121.5 ON and GPS
coordinates, provided the
data was acquired. If GPS
data has not been
successfully downloaded
into the beacon, the digital
display will give you tips like
“GIVE CLEAR VIEW TO
SKY.”
PLB
ON
GPS √

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In Self-Test, the display illustrates the test result of each step with “√” indicating
a pass and “X” indicating a failure. There are a total of five tests, including a
battery check. If all tests pass, SELF-TEST PASS will be displayed at the end
of the Self-Test mode. In the GNSS Self Test mode, the digital display will
show the letters “GPS Test” moving left to right while the internal GPS receiver
is acquiring the coordinate data. Once the data is acquired, the coordinates will
display as a confirmation that the data was successfully acquired. This will be
followed by the GPS coordinates horizontally scrolling through the display,
provided the beacon has successfully downloaded an external GPS location.
See Appendixes B through E for details about display messages.
7. Activating your beacon
Overview
Personal Locator Beacons are designed to be manually activated. They are
only to be activated when all other means of self-rescue have been exhausted.
When properly registered as required, the activation of the beacon tells Search
and Rescue who you are, where you are, and that you are facing a life
threatening situation.
Warning: This transmitter is authorized for use only during
situations of grave and imminent danger. Deliberate misuse may
incur a severe penalty.

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NOTE: The appearance of your key pad may vary from this picture.
Figure 2 - Key Pad Functions
NOTE: If you notice the PLB is flashing the red or green LED and
“beeping” periodically on its own, this likely means it has accidentally
been activated and needs to be shut off and reported as a false alert see
section on false alerts.
PLB-350C
Activation diagram
GPS Self-Test Button
ON / OFF Button
(visible only when
antenna is deployed)
When activated:
(Flashing Red LED)
transmitting 406 MHz
during activation
(Flashing Green LED)
406 MHz includes GPS
data
(IR LED) Programming
Interface
(Not owner accessible)
Self-Test Button

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Steps to activate (406 MHz and 121.5 MHz)
To activate your beacon in a distress situation, follow these steps (see Figure 3
below).
1) Unclip the antenna from the case.
2) Move it into the upright position
3) Depress the ON/OFF ( ) button for 1 full second.
You will see the Red LED flashing and the display reads “PLB ON”. Your
beacon is now activated. While transmitting your distress signal, the red LED
will flash once every 2 seconds, alerting you that your beacon is active.
8. 406 MHz/121.5 MHz antenna position
For maximum performance you must deploy the beacon antenna into the
proper position as shown in Figure 3. If at all possible, be sure the antenna is
positioned facing the sky and avoid submerging in water. This device is
intended to operate on or above the ground or while attached to your person
above the water line.
9. Activation with GPS
If your unit is activated, the GPS receiver will start up, search to find your
LAT/LON and incorporate it into your 406 MHz signal. As soon as the GPS
receiver acquires valid positioning data, the red LED will stop blinking and the
green LED will begin flashing once every 2 seconds.
Figure 3




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Figure 4 –GPS Receiver Location
The same GPS data will be sent with each 406 MHz signal for the next twenty
minutes. At that time the internal GPS will start up again, search to find your
LAT/LON and incorporate it into your next 406 MHz signal. If for any reason the
internal GPS cannot update your LAT/LON, your last position will be used for
the next four hours. At that time the green LED will stop blinking and the red
LED will flash once every 2 seconds until new GPS data is obtained.
10. GPS receiver orientation
When activated, it is critical that you do not cover the beacon with any body
part, water, clothing, etc. The GPS receiver is located under the bottom portion
of the case behind the ACR Electronics‟ logo (see Figure 4).
To ensure optimum performance of the GPS receiver, the beacon needs to
have an unobstructed view of the sky. Avoid submerging the GPS receiver in
water if possible. Water will shield and inhibit the GPS receiver and may cause
difficulties obtaining your GPS coordinates. Avoid leaning over the beacon to
view blinking LED as you may shield the GPS reception.
11. Turning off the beacon
To deactivate your beacon; depress the ON/OFF ( ) button for more than 4
seconds. Once the beacon is deactivated, all blinking LED‟s will stop, signifying
that the beacon is no longer sending your distress message.
If deactivation should fail, remove the six screws holding the unit together and
unplug the battery to disable the unit. Return the beacon to ACR Electronics for
service.
NOTE: Leave beacon on until rescued. Turning beacon off will prolong or
prevent rescue. Repeated activations could be viewed as a hoax.

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12. Preventing false alerts
A false alert is any activation of the beacon, intentional or otherwise, that does
not result from a situation of grave and imminent danger.
Be sure to do the following to help minimize false alerts:
// Register your beacon. This does not reduce false alert rates;
however, when the beacon is properly registered, the situation can usually be
resolved with a phone call.
// Be careful with whom you leave your beacon. Make sure that they
know how to use it, and that they understand the ramifications of causing a
false alert. A lot of false alerts are generated by curious individuals. If you
notice the beacon is flashing the red or green LED and “beeping” periodically
on its own, this likely means it has accidentally been activated and needs to be
shut off and reported.
// Do not stow beacon while other gear is in contact with the keypad.
The Cospas-Sarsat satellites detect distress beacon transmissions immediately
and locate the transmission within a few minutes of beacon activation.
NOTE: If you report a false alert and the authorities have not received the
signal, do not be concerned. This may mean that you were able to deactivate
the beacon before transmitting the signal.
13. False alert
A false alert must be reported to the search and rescue authorities.
False alerts in the USA that are rectified must be reported to the US Air Force
Rescue Coordination Center (AFRCC) to let them know that the situation has
been corrected and everything is fine. Responsibly reporting these events to
the AFRCC or your proper authority will not incur a penalty, but deliberate
misuse or not notifying the proper authority may incur a severe penalty.
Reporting
Should there be a false alert for any reason, it must be reported to the nearest
search and rescue authorities. The information that should be reported
includes:
// The PLB 15-digit Unique Identifier Number (UIN)
// Time and date
// Duration and cause of activation
// Location of beacon at the time of activation

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To report false alert in the United States,contact the AFRCC:
United States Air Force Rescue Tel: [phone]
Coordination Center (AFRCC)
To report false alerts outside of the USA, contact the national authority
where your beacon is registered.
STEP THREE - MAINTAINING YOUR PLB
1. Routine Maintenance
Carefully inspect the beacon case for any visible cracks. Cracks may admit
moisture, which could falsely activate the beacon or otherwise cause a
malfunction. Any cracks observed should be immediately referred to ACR for
evaluation by calling [phone]. ACR Technical Support can also be
reached by sending an email to [e-mail].
After checking the beacon case for cracks, it may be wiped down with a clean,
damp cloth. Do not use any type of cleaner on your beacon.
2. Battery Replacement
Replace the battery no later than 6 years from date of manufacture, 5 years
from date of install, or after emergency use. At each inspection, check the time
remaining until replacement is required. The battery should be replaced if the
beacon has been activated for any use other than the Self-test. Always refer
battery replacements and other beacon service to a factory authorized Battery
Replacement Center. Battery replacement includes servicing the beacon by
replacing all o-rings, testing the water seal and the electrical properties.
NOTE: There are no user serviceable items inside the beacon. DO NOT OPEN
THE BEACON. Opening the beacon will void the warranty.
For the nearest location of a Battery Replacement Center, visit our website at
www.acrelectronics.com. Click on “Battery Replacement Center”.
This beacon contains two (2) lithium metal battery packs that are less than 2
grams each. They are not classified as Hazmat for transportation. Prior to
shipping beacon for service, alert your carrier about the batteries contained in
this equipment to make sure they properly label your package. Call ACR‟s
Technical Service department at [phone] for proper shipping
instructions or visit the ACR website in the Support section entitled “Hazmat,
MSDS Sheets, & Info”.

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3. Self-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 flash the green LED to signify the test has begun and the
Digital Display will show Pass or Fail message. 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 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 to the satellite system. The 121.5 MHz homing signal is inhibited
during Self-test; this allows you to test your beacon any time during the day
without causing false alerts.
Self Test Sequences
Self Test Guide ( Green LED
Red LED)
Green LED, Display 4 Passes,
Green LED
Successful Self-test
Green LED, Less than 4
Passes, Red LED
Failed Self-test –Return beacon
to ACR
Red LED, Display 4 Passes,
Green LED
Successful Self-test –At least 1
hour of battery power has been
depleted, have battery replaced.
Red LED, Less than 4 Passes,
Red LED
Failed Self-test –Return unit to
ACR for service.
4. Battery 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.

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5. GPS Testing (GNSS Self-Test)
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: For PLB-350C models, the following test cannot be performed
more than sixty times during the life of the battery pack. Once this GPS
testing feature reaches 60 times, the feature will be disabled by internal
software.
NOTE: 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.
Press the GPS button for longer than 5 seconds. Observe the beacon for the
entire GPS test. A green LED will indicate that the GPS has been turned ON.
The beacon GPS will remain ON until LAT/LON coordinates have been
obtained or until 2 minutes have elapsed. If good LAT/LON data has been
obtained, a single 406 MHz test burst will be sent out with location data and the
GPS will be turned OFF and the green LED will light for at least 3 seconds. This
LAT/LON data is not saved for use. The green LED indicates that the GPS is
functioning properly and that the beacon is in a location or environment where it
can receive the necessary signals from satellites. If the GPS does not acquire
good LAT/LON data, the GPS will turn OFF after 2 minutes, followed with a
RED LED light up for 3 seconds, and no 406 MHz burst sent out.
GPS Test Sequences (maximum
duration 121 seconds)
GPS Test Guide
Green LED at start followed by
“GPS TEST” displayed, Green
LED and LAT/LON displayed
Successfully acquired GPS
data, 406 MHz burst sent out
with location data
Green LED at start followed by
“GPS TEST” displayed, Red
LED
GPS data was not
successfully acquired, no
burst sent out.

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6. Changing ownership or contact information
As the owner of the beacon, it is your responsibility to advise the national
authority of any change in your registration information. If you are transferring
the beacon to a new owner, you are required to inform the national authority.
You can do this by using their online database or by letter, fax or telephone and
informing the authority of the name and address of the new owner.
The new owner of the beacon is required to provide the national authority with
all of the information requested on the registration form. This obligation
transfers to all subsequent owners. See earlier section, STEP ONE, for further
details on this process.
7. Lost or stolen PLBs
If your PLB is lost or stolen, do the following immediately:
// Report to your local authorities that the PLB has been lost or stolen
// Contact NOAA at [phone] (212-SAVE), or your national authority, with
the following information:
oPolice department name
oPolice department phone number
oPolice case number
If your PLB were to be activated, the information you provided will be forwarded
to the appropriate search and rescue authorities who will ensure that your PLB
gets back to you. If someone attempts to register a PLB reported as stolen,
NOAA or your national authority will notify the appropriate police department.

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Figure 5 - Belt Clip
APPENDIX A - ACCESSORIES
1. Multi-Function Belt Clip
The SARLink™ View comes standard with a multi-
function belt clip. To install the clip, simply align the
bottom tabs on the clip with the insert holes located on
the bottom of the beacon. Snap the clip in place by
pressing the top of the clip so that the two top tabs
engage in the two insert holes on the top of the
beacon (see Figure 5). To remove the clip, push up
and back on the top tabs one at a time to disengage
the clip from the beacon.
The belt clip has been designed to accommodate your
extreme adventures.
You can secure your beacon directly to backpack
webbing straps, life jackets or belts to ensure the beacon is close at hand. ACR
recommends that you secure your beacon someplace on your person that is
easily accessible in case of an emergency for rapid activation. Ensure the
beacon is secured firmly and is protected before heading out to avoid damage
or loss.
NOTE: ACR recommends that once you have clipped your beacon
in place that you also anchor the beacon with the lanyard to your life
jacket, backpack, etc. to ensure the unit will not be lost if it should
break out of the clip.

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APPENDIX B - USER INTERFACE: SPECIAL ICONS
Characters displayed during beacon operation include the following:
The battery gauge appears on certain screens to indicate the
remaining level of battery charge
The gauge illustrates the remaining charge in the battery as a
percent of the total possible charge, e.g., The gauge will show
the system to be charged in the following increments: 100, 75,
50 and 25%.
The frequency transmission symbol appears on certain
screens to indicate that the transmission has been sent
The symbols for a green or a red LED light, respectively
Indicates scrolling text
G
R