ACR Electronics GLOBAL FIX - REV G Installation instructions

Product Support Manual
Emergency Position Indicating Radio Beacon
(EPIRB)
RLB-35
Y1-03-0157-2
Rev. G
FCC ID: B66ACR-RLB35
ACR Electronics, Inc.
5757 Ravenswood Road
Fort Lauderdale, FL 33312
Tel : [phone]
Fax: [phone]
www.acrelectronics.com
Email: [email protected]
OWNER
VESSEL
CALL SIGN / MMSI
SERIAL NUMBER

* * * WARNING * * *
THIS TRANSMITTER IS AUTHORIZED FOR USE
ONLY DURING SITUATIONS OF GRAVE
AND IMMINENT DANGER
DELIBERATE MISUSE MAY INCUR A SEVERE PENALTY
Magnet Safe Distance
1m (3.3 ft)
Keep this beacon a safe distance
away from all magnetic sources
Stereo Speaker Safe Distance
1m (3.3 ft)
Keep this beacon a safe distance
away from all stereo speakers
IF YOU HAVE ANY TROUBLE WITH
YOUR NEW 406 BEACON, DO NOT
RETURN IT TO THE STORE!
CALL ACR ELECTRONICS AT
[phone]. WE WILL HELP YOU
RESOLVE ANY PROBLEMS YOU MY BE
EXPERIENCING. MANY QUESTIONS CAN
BE ANSWERED OVER THE PHONE.
LIMITED WARRANTY
This product is warranted against factory defect in material and workmanship for a period of five
years from date of purchase or receipt as a gift. During the warranty period ACR Electronics, Inc.
will repair or, at its option, replace at no cost to you for labor, materials or return transportation,
provided you obtain a Return Authorization from ACR Electronics, Inc., 5757 Ravenswood Road,
Ft. Lauderdale, Fl. 33312-6645. To obtain a Return Authorization, call our Customer Service
Department at [phone]. This warranty does not apply if the product has been damaged by
accident or misuse, or as a result of service or modification by other than the factory. Except as
otherwise expressly stated, the COMPANY MAKES NO REPRESENTATION OR WARRANTY OF
ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE, OR ANY OTHER MATTER WITH RESPECT TO THIS PRODUCT. The Company shall
not be liable for, consequential or special damages.
In order to place the warranty in effect, the accompanying registration card must be returned to
us within ten days of purchase.

Table of Contents
SECTION 1 – FOREWORD AND PRODUCT FEATURES.............................................................................................. 1
SECTION 2 – REGISTRATION OF 406 MHZ BEACONS............................................................................................... 1
2.1 Registration Importance.................................................................................................................................... 1
2.2 Where to Register............................................................................................................................................... 1
2.3 Registration in the United States...................................................................................................................... 2
2.4 Leisure Vessels in the United States................................................................................................................ 2
2.5 Commercial Vessels in the United States........................................................................................................ 2
2.6 Do I Need a Radio Station License?................................................................................................................. 2
2.7 Commercial Vessels World Wide...................................................................................................................... 3
2.8 Registration Outside the United States............................................................................................................ 3
2.9 Change of Ownership or Contact Information ................................................................................................ 3
2.10 Lost or Stolen EPIRBs ....................................................................................................................................... 3
SECTION 3 – FALSE ALARMS ....................................................................................................................................... 3
3.1 Prevention of False Alarms............................................................................................................................... 3
3.2 Reporting of False Alarms................................................................................................................................. 4
SECTION 4 – INSTALLATION......................................................................................................................................... 4
4.1 Mounting Location ............................................................................................................................................. 4
4.2 Visual Inspection................................................................................................................................................ 4
4.3 Hydrostatic Release Unit (HRU)........................................................................................................................ 5
SECTION 5 – ACTIVATION AND DEPLOYMENT........................................................................................................... 6
5.1 Bracket Configuration........................................................................................................................................ 6
5.2 Dimension Drawings.......................................................................................................................................... 7
5.3 Configuration Overview..................................................................................................................................... 9
5.4 GPS Acquisition ................................................................................................................................................. 9
5.5 Automatic Deployment and Activation - Category 1 Beacons ...................................................................... 9
5.6 Manual Deployment and Activation................................................................................................................ 10
5.7 Manual Activation without Deployment......................................................................................................... 10
5.8 Deactivation ...................................................................................................................................................... 10
5.9 Full Functional Self Test.................................................................................................................................. 10
5.10 Performing the Internal GPS Test................................................................................................................... 11
SECTION 6 – CARE AND MAINTENANCE................................................................................................................... 12
6.1 Routine Maintenance ....................................................................................................................................... 12
6.2 Battery Replacement........................................................................................................................................ 12
6.3 Shore Based Maintenance for SOLAS Vessels, (SBM) IMO MSC/Circ. 1039 ............................................. 12
6.4 Annual Testing for SOLAS Vessels, IMO MSC/Circ. 1040............................................................................ 12
SECTION 7 – THE SEARCH AND RESCUE SYSTEM ................................................................................................. 12
7.1 General Overview ............................................................................................................................................. 12
7.2 Satellite Detection ............................................................................................................................................ 13
7.3 Global Positioning System (GPS)................................................................................................................... 13
SECTION 8 – TECHNICAL INFORMATION.................................................................................................................. 14
8.1 Type Approvals and Standards ...................................................................................................................... 14
8.2 Characteristics.................................................................................................................................................. 14
8.3 Accessories ...................................................................................................................................................... 14
8.4 Specifications ................................................................................................................................................... 15

Y1-03-0157-2 Rev. G
1
SECTION 1 – FOREWORD AND PRODUCT FEATURES
Thank you for purchasing from ACR Electronics, Inc. We design, manufacture and distribute quality products
knowing they are used to save lives. Many of our products are required to be tested and approved by
regulatory bodies worldwide. We believe in going beyond those specifications to insure our products work
when needed in real world conditions. With proper care and maintenance your ACR product will last for years.
It is important that you thoroughly read this product support manual to understand the proper care and use of
your ACR product.
ACR is proud to be certified to ISO 9001: 2000, the International Standard for Quality.
This manual provides installation, operation and maintenance instructions for the GlobalFix™ EPIRB,
hereinafter referred to as the beacon. This manual also describes the characteristics and details of the beacon
system. In the USA, the FCC authorizes the use of 406 MHz Radio beacon by any ship that is also equipped
with a VHF ship station. This will make the 406 MHz radio beacon available for use on most U.S. ships and
boats. Commercial EPIRB carriage requirements are contained in IMO and/or USCG regulations.
Product Model
Number
Product
Number Category Class Hazmat/
Non-Hazmat GPS Interface
GlobalFix™ RLB-35 2742 1 1 Hazmat Internal
GlobalFix™ RLB-35 2744 2 1 Hazmat Internal
GlobalFix™ RLB-35 2742NH 1 2 Non-Hazmat Internal
GlobalFix™ RLB-35 2744NH 2 2 Non-Hazmat Internal
NOTE: YOUR BEACON MAY NOT HAVE ALL OF THE FEATURES DESCRIBED IN THIS MANUAL.
SECTION 2 – REGISTRATION OF 406 MHz BEACONS
2.1 Registration Importance
It is mandatory that the owner of this 406 MHz beacon register it with the national authority.* All 406 MHz
beacons transmit a Unique Identifier Number (UIN) when activated. This UIN is programmed in the beacon
based on the country in which the beacon was purchased. Registration provides the Search and Rescue
(SAR) forces with up to date emergency contact information, which will speed up the launch of a rescue
operation. The national authorities use the information to verify if an actual emergency exists. Valuable search
and rescue resources are wasted every year responding to false alarms. SAR forces will know who you are,
what type of vessel you have, your homeport, and who to contact that might know of your current situation
ONLY if your beacon has been properly registered. This will help expedite the launch of a rescue operation. All
406 MHz beacons are required to have their registration updated every two years.
*The national authority is the governmental body responsible for EPIRB registration database administration
for the country for which the EPIRB is programmed.
2.2 Where to Register
The owner of a 406 MHz beacon (EPIRB) should register it with the national authority for which the beacon
was programmed (typically the country where purchased), regardless of where they do their boating. However,
the beacon must be reprogrammed if the boat or its owner moves or sails under a different national authority
than the one for which the beacon was previously programmed. Each beacon is programmed with a Unique
Identification Number (UIN) for the country that the unit is shipped to, and will only be accepted for registration
in that country. To verify the country, for which a beacon is programmed, see the label with the UIN on the side
of the unit. Units that do not have a country specified on the UIN label are programmed for the United States.

Y1-03-0157-2 Rev. G
2
2.3 Registration in the United States
It is the owner’s responsibility to register 406 MHz beacons that are programmed for and purchased in the
United States. The national authority that accepts registrations in the United States is the National Oceanic
and Atmospheric Administration (NOAA). The fastest and easiest way to register your beacon with NOAA is to
use the online registration database at www.beaconregistration.noaa.gov. If internet is not accessible then
the owner should complete the enclosed registration form (Do not confuse this with the ACR Electronics
warranty card) and mail with the pre-addressed, postage paid envelope to:
NOAA SARSAT Beacon Registration
NSOF, E/SP3
4231 Suitland Road
Suitland, MD 20746
For Faster Service, Register Online!
In the United States:
www.beaconregistration.noaa.gov
The information provided on the registration form is used only for rescue purposes. Complete and send the
registration immediately! Registration can be expedited by registering online or by faxing the registration form
to Fax # [phone]. If the beacon is going to be placed into immediate service, register online or by fax.
All registration forms will be entered in the 406 MHz beacon registration database within 48 hours of receipt. 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 affix the decal
to your beacon in the area marked “BEACON DECAL HERE.” If you do not receive confirmation back from
NOAA, call toll free 1-888-212-7283 for assistance.
2.4 Leisure Vessels in the United States
In the United States, leisure vessels are sometimes required to have a radio station license. Leisure vessels
that are required to have a radio station license are required to modify that license when an EPIRB is added to
the vessel. For information on whether you need a radio station license, see section 2.6 (below).
2.5 Commercial Vessels in the United States
In the United States, commercial vessels that are required to have a radio station license are required to
modify that license when an EPIRB is added to the vessel. For information on whether you need a radio station
license, see section 2.6 (below).
2.6 Do I Need a Radio Station License?
The information in this section is provided for informational purposes only. Always check the FCC’s website at
http://wireless.fcc.gov/services/index.htm?job=licensing&id=ship_stations or call toll-free
1-888-CALLFCC (225-5322) for the latest information.
You do not need a license to operate a marine VHF radio, radar, or EPIRBs aboard voluntary ships operating
domestically. The term "voluntary ships" refers to ships that are not required by law to carry a radio. Generally,
this term applies to recreation or pleasure craft. The term "voluntary ships" does not apply to the following:
1. Cargo ships over 300 gross tons navigating in the open sea;
2. Ships certified by the U.S. Coast Guard to carry more than 6 passengers for hire in the open sea or
tidewaters of the U.S.;
3. Power driven ships over 20 meters in length on navigable waterways;
4. Ships of more than 100 gross tons certified by the U.S. Coast Guard to carry at least one passenger
on navigable waterways;
5. Tow boats of more than 7.8 meters in length on navigable waterways; and,
6. Uninspected commercial fishing industry vessels required to carry a VHF radio.
7. Ships required to carry an Automatic Identification System (AIS) transceiver by the U.S. Coast Guard
regulations enacted pursuant to the Maritime Transportation Security Act of 2000.
Ships are considered as operating domestically when they do not travel to foreign ports or do not transmit
radio communications to foreign stations. Sailing in international waters is permitted, so long as the previous
conditions are met. If you travel to a foreign port (e.g., Canada, Mexico, Bahamas, British Virgin Islands), a
license is required. Additionally, if you travel to a foreign port, you are required to have an operator permit.

Y1-03-0157-2 Rev. G
3
2.7 Commercial Vessels World Wide
406 MHz beacons that are carried on commercial vessels world wide should be registered with the country
where the vessel is flagged regardless of where the vessel operates. When a commercial vessel acquires a
406 MHz beacon from outside of its home country, the beacon should be reprogrammed for the home country
and registered there.
2.8 Registration Outside the United States
In countries other than the United States, 406 MHz beacons are registered with that country’s national
authority at the time of purchase. The sales agent should assist in filling out the forms and sending to that
country’s national authority. To verify that the unit is properly programmed for that country, view the UIN label
on the side of the unit. In the event that the beacon is not programmed for the country it has been purchased
in, the sales agent, (if properly equipped) can reprogram the unit for that country.
2.9 Change of Ownership or Contact Information
It is the owner’s responsibility to advise the national authority of any change in the information on the
registration form. If the current owner of the beacon is transferring the beacon to a new owner, the current
owner is required to inform the national authority by using their online database or by letter, fax or telephone,
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. Registration forms for the United States are available from NOAA by calling
1 [phone] or by visiting our website at www.acrelectronics.com.
2.10 Lost or Stolen EPIRBs
Inform NOAA immediately at 1-888-212-SAVE (7283), or your national authority, that your EPIRB has been
lost or stolen. They will update your EPIRB registration information with the appropriate information.
Stolen EPIRBs - Things That You Need To Do:
•Report to your local authorities that the EPIRB has been stolen.
•Contact NOAA at 1-888-212-SAVE (7283), or your national authority, with the following information so
your EPIRB registration information can be updated with the appropriate remarks:
- Police Department Name - Police Phone Number - Police Case Number
If your EPIRB were to be activated, the information you provided will be forwarded to the appropriate search
and rescue authorities who will ensure that your EPIRB gets back to you. If someone attempts to register an
EPIRB reported as stolen, NOAA or your national authority will notify the appropriate police department. Visit
www.cospas-sarsat.org for more detailed information.
SECTION 3 – FALSE ALARMS
3.1 Prevention of False Alarms
An ACR 406 MHz EPIRB can be activated in an emergency by two different methods. Whether you have a
Category 1 or 2, these methods are the same.
1. When the beacon is out of its bracket and in the water, the unit will start transmitting.
2. When the switch is moved to the “ON” position, in or out of the bracket, the unit will start transmitting.
There are a few precautions that should be taken to prevent false alarms.
•Do not mount or transport beacon within 3.3 ft/1 m of a magnetic source.
•Do not store beacon outside of its bracket if it can get wet.
•Do not mount EPIRB backwards in its bracket (lanyard roll must not be visible).
•Do not clean beacon with a water hose and brush while out of its bracket.

Y1-03-0157-2 Rev. G
4
3.2 Reporting of False Alarms
Should there be, for any reason, an inadvertent activation or false alarm, it must be reported to the nearest
search and rescue authorities. The information that should be reported includes the EPIRB 15-digit Unique
Identifier Number (UIN), date, time, duration and cause of activation, as well as location of beacon at the time
of activation.
To Report False Alarms in the United States Contact any of the Following:
Atlantic Ocean / Gulf of Mexico
USCG Atlantic Area Command Center Tel: [phone]
Pacific Ocean Area /
USCG Area Command Center Tel: [phone]
USCG HQ Command Center Tel: [phone]
To Report False Alarms Worldwide contact the national authority where your beacon is registered.
SECTION 4 – INSTALLATION
4.1 Mounting Location
The location selected must be sufficiently rigid to support the weight of the total installation and at the same
time consider vibration, exposure to the elements, exposure to surrounding hazards, such as equipment
movement, doors being opened, accidental covering, personnel traffic, etc., and yet be readily accessible at all
times in the event of an emergency.
Also to be considered in selecting a location for installation is the harmful effect that certain corrosive vapors
might have on the beacon. Under no circumstances should a beacon be jeopardized by any foreign articles
being temporarily or permanently positioned during “at sea” or “in port” activities.
The beacon should face inboard on rail mount applications and should not be subjected to breaking waves.
CAUTION: Care must be taken to prevent any lanyard, line, or other emergency equipment that may be
attached to the beacon from becoming entangled or fouled which could prevent the beacon from being
removed in an emergency. Do not attach the beacon lanyard to the vessel or mounting bracket.
Do not mount the beacon in the vicinity 3.3 ft/1 m of strong magnetic or electrical fields, such as loud speakers,
radar or high power radio transmitter. The beacon should not be mounted closer than 3.3 ft/1 m. to a magnetic
navigation compass.
Mount the beacon in a vertical (antenna upward) position. In certain circumstances, such as medical
emergencies or disabled vessels, manual activation of the beacon for location and homing purposes is
sometimes requested. Mounting in this orientation provides the best homing signal.
The Category 1 float-free mounting bracket should be mounted securely to a vertical or horizontal surface (the
mount has predrilled holes for attachment to a flat surface) where there are no overhead obstructions. Location
aboard a vessel must be chosen to allow the beacon to float free of sinking craft and as high as possible,
especially on small vessels. This will help ensure operation of the hydrostatic release unit in the event the
vessel capsizes without sinking. See section 4.3 on removing the HRU.
The Category 1 float-free mounting bracket should be securely attached to the vessel. The use of #10
stainless steel hardware (not included) is recommended.
4.2 Visual Inspection
Visually inspect the area surrounding the mounting bracket installation site for hidden hazards, obstacles, etc.,
that may have been overlooked during location selection. If there is any doubt as to the ready accessibility to
the beacon at all times or if any condition may appear to be questionable, make a complete and thorough
investigation before making final approval of the installation.

Y1-03-0157-2 Rev. G
5
4.3 Hydrostatic Release Unit (HRU)
The ACR HydroFix™ HRU has an expiration date of 2 years from the date of installation or 3 years from the
date manufactured, whichever comes first. Upon installing your beacon or new HRU, permanently scratch
the new expiration date on the HRU date calendar (as seen below).
Figure 1 HRU Date Calendar
The hydrostatic release can be replaced by removing the beacon from the bracket. Firmly press down on the
spring at the bottom of the shelter, then slide the hydrostatic release assembly out of the keyed opening on the
spring and mounting bracket. Discard the old HRU. Check the date manufactured on the bottom of the new
HRU and insert the new hydrostatic release assembly in place by engaging it to the opening of the ejection
spring and case. When replacing the HRU, ACR requires that you do not reuse any parts from the previous
HRU. Failure to replace the entire assembly can cause the bracket to malfunction. Always use original ACR
replacement parts (Replacement kit P/N 9490). Use of unauthorized replacement parts will void your warranty
and may cause the bracket to malfunction. Place the beacon into the mounting bracket, (lanyard facing
inward), and replace cover, securing in place with the cotter pin going through the hydrostatic release rod.
Date of Installation Example:
Date of installation of New HRU or First Installation of
EPIRB including new HRU: August 1, 2007.
This unit will need to be replaced in August of 2009.
Scratch off “AUG 8” and “2006” on the HRU date calendar
Date of Manufacture Example:
On the bottom of the HRU a date of manufacture is pin
stamped: 0806.
This unit will need to be replaced in 0809. Scratch off “AUG
8” and “2009” on the HRU date calendar

Y1-03-0157-2 Rev. G
6
SECTION 5 – ACTIVATION AND DEPLOYMENT
5.1 Bracket Configuration
Figure 2
Figure 3

Y1-03-0157-2 Rev. G
7
5.2 Dimension Drawings
Category 1 Dimension Drawing
NOT TO SCALE
Figure 4
Bracket
Sensor
Magnet
(inside
bracket)

Y1-03-0157-2 Rev. G
8
Category 2 Dimension Drawing
NOT TO SCALE
Figure 5
Bracket
Sensor
Magnet
(inside
bracket)

Y1-03-0157-2 Rev. G
9
5.3 Configuration Overview
Category 1 beacons are designed to be automatically deployed and activated. The beacon may also be hand
held on the deck of vessels, or floated in water and attached to a raft or life vest with the lanyard provided.
Category 2 beacons are designed to be manually deployed from the bracket.
The beacon is designed to operate best while floating in water. Hand held operation should be avoided
when possible. Do not operate inside life raft or under any similar cover or canopy. Use the lanyard to attach
beacon to life raft or person after deployment. Caution - Do not attach lanyard to bracket or vessel. Both
models of the beacon can be deployed and activated manually.
Changes in the laws governing beacons have mandated that the beacon be ready at all times. If certain criteria
are met, the beacon will begin transmitting. The beacon is equipped with sensors to determine if it is in water
(a deployment condition). Category 1 and 2 brackets both contain a magnet that interacts with other sensors in
the beacon to prevent activation if it is wet (also a deployment condition).
Two conditions must be satisfied for the beacon to automatically activate:
1) It must be out of its bracket
2) It must be in the water
Note: Either condition by itself will not automatically activate the beacon.
The beacon is designed to allow the user to perform periodic testing while the beacon is in the release bracket.
Category 1: Place the beacon into the release bracket with the spooled lanyard inward. The beacon should
now be firmly held in the Category 1 bracket and ready for automatic deployment. Do not attach lanyard to
bracket.
Category 2: Place the beacon into the bracket with the spooled lanyard inward. The beacon should now be
firmly held in the Category 2 bracket and ready for manual deployment. Do not attach lanyard to bracket. Use
the strap and buckle to secure the beacon. The strap should be adjusted tight against the beacon; tight enough
so that it is almost difficult to engage the buckle. This should be checked periodically.
5.4 GPS Acquisition
The beacon is fitted with an internal Global Positioning System receiver that will determine the latitude and
longitude of its position on the globe to be transmitted to the emergency system. When the beacon is activated
in an emergency, the GPS receiver is turned ON and immediately begins acquiring data. Initially the red LED
(Light Emitting Diode) flashes once per second to indicate the beacon is turned ON and operating. As soon as
the GPS receiver acquires good positional data the red LED stops blinking and the green LED flashes once
per second to indicate that the internal GPS receiver has acquired good positional data. Once good positional
data has been obtained the GPS receiver waits for 20 minutes before looking for new positional 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 positional data, the message transmitted by the beacon will revert back to default data. At this point the
green LED will stop blinking and the red LED will flash once per second. If at any time after this, good
positional data is obtained, this data will be transmitted, the red LED will stop blinking and the green LED will
flash once per second.
5.5 Automatic Deployment and Activation - Category 1 Beacons
Automatic deployment and activation occurs if the vessel sinks and the hydrostatic release device frees the
beacon from the bracket allowing it to float to the surface. Built-in sensors detect that the beacon is no longer
in its bracket and is in water. This condition will automatically activate the beacon.
NOTE: TRANSMISSIONS OF THE 121.5 MHZ AND 406 MHZ SIGNAL WILL NOT OCCUR UNTIL 100
SECONDS AFTER ACTIVATION.

Y1-03-0157-2 Rev. G
10
5.6 Manual Deployment and Activation
The Category 1 beacon can be manually deployed by removing the retaining pin, removing the cover, and then
removing the beacon from the bracket. Once removed, both the Category 1 and Category 2 beacons can be
activated by placing the beacon in water OR by lifting the thumb switch to a vertical position, sliding it toward
the antenna and pushing down to the opposite side of the beacon. Activating the beacon in this manner breaks
off the Activation Indicator Plastic Pin and allows the switch to properly seat, showing the " ▌" symbol (ON).
Figure 6
ON position:
Notice the
Activation
Indicator
Plastic Pin
has been
broken off.
OFF position:
Note the
Activation
Indicator
Plastic Pin
Note: Some countries may fine vessel owners for causing false alarms. The permanent breakage of the
Activation Indicator Plastic Pin is a positive indication of a manual activation.
5.7 Manual Activation without Deployment
The beacon can be activated while still in its bracket by placing the thumb switch in the ON position. Activation
by this method overrides all sensors and turns the beacon “ON.” The caution note above still applies.
5.8 Deactivation
If manually activated, return the thumb switch to the “OFF” position.
If automatically activated: remove the beacon from the water. The beacon normally takes up to 12 seconds
to deactivate, or place the beacon back into the release bracket.
If the beacon continues to operate after it has been deactivated, remove the four screws holding the unit
together and unplug the battery to disable the unit. Return it to a service center for repair.
5.9 Full Functional Self Test
Please read all instructions before performing any of the tests. Be prepared to record data from the test.
Beacons may be tested in or out of the release bracket. 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 beacon on a monthly basis or
prior to a voyage.
The full functional self-test is initiated by momentarily lifting the thumb switch to a vertical position and holding
it in this position for at least two seconds and at most 4 seconds (see figure 7). A beep and the simultaneous
lighting of the red LED indicate the initiation of the test. The buzzer will beep* an additional four times as the
red LED lights simultaneously. The green LED will then light, followed by a flash of the strobe, indicating a
successful test. During the self-test, an actual satellite message is transmitted while certain key performance
parameters are measured and recorded. The self-test message is modified to prevent the satellite from
forwarding an alert message during self-test.

Y1-03-0157-2 Rev. G
11
Figure 7
TEST SUCCESS FAIL
Initial Test Start Beep, Red LED, Strobe
Check Data Integrity Beep, Red LED Test stopped
Check 406 MHz Synthesizer Beep, Red LED Test stopped
Check RF Power/Battery Beep, Red LED Test stopped
Check Internal GPS Beep, Red LED Test stopped
Successful Test Green LED, Strobe
Category 1 Self Test Plug
Easy Access Self Test Plug for Beacons
Remove the new Self Test Plug on the front cover for 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.
*NOTE: The “beeps” are a very high-pitched tone
that many people may not be able to hear.
Figure 8
5.10 Performing the 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.
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. This positional data is not saved for use when the beacon is
activated in an emergency. A green LED is proof 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 positional data, the GPS will turn OFF after 10 minutes and there will be no successful green
LED indication. The beacon must remain under observation to witness the results of the test. It is strongly
recommended that this test not be performed more than once during the five-year life of the battery pack in
order to minimize current drain on the battery pack.
NOTE: The strobe may flash in conjunction with the green LED at the end of a successful GPS test. However,
the only required confirmation of a successful GPS test is the green LED.

Y1-03-0157-2 Rev. G
12
SECTION 6 – CARE AND MAINTENANCE
6.1 Routine Maintenance
At least every ninety days, the float free mounting bracket and beacon should be inspected for deterioration
and/or residue buildup that may affect the function of the beacon or automatic release. Part of the visual check
includes checking the antenna for tightness. Clean the beacon and the mounting bracket to remove residue
buildups. It is recommended that the beacon and mounting bracket be wiped with a damp cloth.
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 cracking observed should be immediately referred
to ACR for evaluation by calling 1-800-432-0227 ext. 2155 in the US, or [phone] ext 2155 elsewhere.
6.2 Battery Replacement
The battery must be replaced by the date indicated on the beacon or every five (5) years, whichever occurs
first. 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 all long life battery replacement and other beacon service to a factory authorized service 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 UNLESS TO
DISABLE IN CASE OF FAULTY ACTIVATION.
For the nearest location of a Battery Replacement Center, visit our website at www.acrelectronics.com
The beacon may or may not require special shipping instructions due to the lithium batteries and changes in
shipping regulations. Please refer to ACR’s website www.acrelectronics.com for proper shipping instructions.
6.3 Shore Based Maintenance for SOLAS Vessels, (SBM) IMO MSC/Circ. 1039
The Maritime Safety Committee approved guidelines for shore-based maintenance of satellite beacons, for the
purpose of establishing standardized procedures and minimum levels of service for the testing and
maintenance of satellite beacons. First Shore Based Maintenance on all ACR EPIRBs is due at the date of the
first battery replacement.
6.4 Annual Testing for SOLAS Vessels, IMO MSC/Circ. 1040
SOLAS regulation IV/15.9 dictates annual testing of 406 MHz satellite EPIRBs. Testing should be carried out
using suitable test equipment capable of performing the relevant measurements. All checks of electrical
parameters should be performed in the self-test mode, if possible.
SECTION 7 – THE SEARCH AND RESCUE SYSTEM
7.1 General Overview
Beacons provide distress alerts via radio transmission on 406 MHz to the LEOSAR satellites of the COSPAS-
SARSAT network. The beacon can also transmit a distress alert (acquired by the internal or external GPS) to
the GEOSAR network that includes GPS latitude and longitude coordinates.
The message transmitted is unique for each beacon, which provides identification of the transmitter through
computer access of registration files maintained by the National Oceanic and Atmospheric Administration or
other national authority*. Remember, SAR forces will know who you are, what type of vessel you have, your
homeport, and who to contact that might know of your current situation ONLY if your beacon has been properly
registered. This will help expedite the launch of a rescue operation. 406 MHz beacons are required to have
their registration updated every two years.
*The national authority is the governmental body responsible for EPIRB registration database administration
for the country for which the EPIRB is programmed.
Once the 406 MHz signal is relayed through the LEOSAR and/or GEOSAR network, SAR forces determine
who is closest, and then proceed to the beacon using the 121.5 MHz homing frequency.

Y1-03-0157-2 Rev. G
13
7.2 Satellite Detection
EPIRBs transmit to the satellite portion of the COSPAS-SARSAT system. COSPAS-SARSAT is an
international system that utilizes Russian Federation and United States’ low altitude, near-polar orbiting
satellites (LEOSAR). These satellites assist in detecting and locating activated 406 MHz satellite beacons.
COSPAS and SARSAT satellites receive distress signals from EPIRBs transmitting on the frequency of 406
MHz. The COSPAS-SARSAT 406 MHz beacon signal consists of a transmission of non-modulated carriers
followed by a digital message format that provides identification data. The 406 MHz system uses Satellite-
borne equipment to measure and store the Doppler-shifted frequency along with the beacon’s digital data
message and time of measurement. This information is transmitted in real time to an earth station called the
Local User Terminal (LUT), which may be within the view of the satellite, as well as being stored for later
transmission to other LUTs.
The LUT processes the Doppler-shifted signal from the LEOSAR and determines the location of the beacon,
then the LUT relays the position of the distress to a Mission Control Center (MCC) where the distress alert and
location information is immediately forwarded to an appropriate Rescue Coordination Center (RCC). The RCC
dispatches Search and Rescue (SAR) forces.
The addition of the GEOSAR satellite system greatly improves the reaction time for a SAR event. This satellite
system has no Doppler capabilities at 406 MHz, but will relay the distress alert to any of the LUT stations.
When there is GPS data included in the distress message, SAR authorities instantly know your location to
within 110 yards (100 m). This speeds up the reaction time by not having to wait for one of the LEOSAR
satellite to pass overhead. Because most of the search and rescue forces presently are not equipped to home
in on the 406 MHz Satellite beacons signal, homing must be accomplished at 121.5 MHz.
7.3 Global Positioning System (GPS)
The GPS system is a satellite group that enables a GPS
receiver to determine its exact position to within 30 m
(100 ft.) anywhere on earth. With a minimum of 24 GPS
satellites orbiting the earth at an altitude of approximately
11,000 miles they provide users with accurate information
on position, velocity, and time anywhere in the world and
in all weather conditions. The GlobalFix™ stores this data
into its distress transmission allowing search and rescue
forces to narrow the search into a very small area and
thus minimize the resources required and dramatically
increase the effectiveness of the overall operation.
Figure 11 - GPS Satellite Orbits
Figure 9- Satellite Coverage Figure 10- GEOSAR Satellite Orbits

Y1-03-0157-2 Rev. G
14
SECTION 8 – TECHNICAL INFORMATION
8.1 Type Approvals and Standards
The RLB-35 meets the requirements of Federal Communication Commission (FCC) Part 80 and Category 1
EPIRBs meet the GMDSS requirements:
Type Approvals
FCC FCC ID: B66ACR-RLB35 (RLB-35)
COSPAS-SARSAT Certificate Nos. 136, 173
MED
BSH Certificate No. 4612/506 0016/2005
Notified Body: 0735
Copies of certificates and additional worldwide type approvals are available at www.acrelectronics.com.
Applicable Standards
Part 80 Subpart V – EPIRBs
FCC Part 80 Subpart W – GMDSS (Cat. 1 only)
RTCM RTCM Recommended Standards for 406 MHz Satellite EPIRBs
C/S T.001 – Specification for C/S 406 MHz Distress Beacons
COSPAS/SARSAT C/S T.007 –C/S 406 MHz Distress Beacon Type Approval Standard
Annex A.1, Item No. A.1/5.6 – 406 MHz (C/S) Satellite EPIRB
MED Annex B, Model B
IMO Resolution A.694(17) – General Requirements for GMDSS Equipment
IMO Resolution A.810(19) – Performance Standards for Float-Free Satellite
IMO
406 MHz EPIRBs (Cat. 1 only)
8.2 Characteristics
The beacon is a buoyant, battery operated unit. The beacon case, with its external antenna, is waterproof. The
semiconductor circuits are mounted within the case assembly that also contains the battery power supply. A
“Test/ON” switch is installed on top of the beacon, along with a strobe light. The Category 1 beacon must be
stored in its special mount, free of obstructions aboard a vessel for automatic float-off. The unit is self-buoyant
and no external flotation devices are required.
8.3 Accessories
Product Product Number
Category 1
Mounting Case
6.5" x 17.1" (16.51 cm x 43.4 cm)
9435
Category 2
Mounting Brackets
6.0" x 7.7" (15.2 cm x 19.5 cm)
9430
Universal HRU Kit 9490
Replacement Antenna 9368

Y1-03-0157-2 Rev. G
15
8.4 Specifications
406 MHz Transmitter 121.5 MHz Transmitter
Frequency 406 MHz Frequency 121.5 MHz
Output
Power 5 Watts Frequency
Tolerance ±50 ppm
Digital
Message
Format Standard Location Protocol1Output Power
50-100 mW PEP
Duration 520 ms Modulation
Type AM (3K20A3X)
Frequency
Stability ±2 parts per billion/100ms Sweep Range
400 to 1200 Hz
Rate 400 bps Sweep Rate 3 Hz
Modulation ±1.1 radians peak Duty Cycle 37.5%
Encoding Biphase L Antenna
Frequency 406 & 121.5 MHz
Polarization Vertical
VSWR Less than 1.5/1
1 Leaves ACR with Serialized U.S. code but can be
reprogrammed at a service center to Maritime or other
coded format including nationality of registration.
GPS Antenna 12 Channel Parallel Receiver
Battery Life General/Environmental
Operating 48 hours minimum Size
(without
antenna)
9.0 x 4.8 x 3.5 in.
(22.9 x 12.2 x 8.9 cm)
Replacement
Interval 5 years or after use in an emergency Antenna
Height 7.39" (18.77 cm)
Operating
Temp Range CLASS 1 -40°C to +55°C
CLASS 2 -20°C to +55°C EPIRB
Material High impact UV resistant
plastic
Storage
Temp Range CLASS 1 -50°C to +70°C
CLASS 2 -40°C to +70°C Waterproof Exceeds RTCM Standards -
Factory Tested to 33 ft/10 m at
room temperature
Xenon Strobe Weight 2.25 lbs (1.1kg)
Light Color White Color High Vis Yellow
Output
Power 0.75 effective candela
Flash Rate 20-30 per minute

Y1-03-0157-2 Rev. G
16
ACR Electronics, Inc.
5757 Ravenswood Road, Ft. Lauderdale, FL 33312-6645
Tel: [phone] Fax: [phone]
www.acrelectronics.com
European Office
1 Rose Cottages, Pitmore Lane, Sway,
Lymington, Hampshire SO41 6BX UK
Tel: [phone] Fax: [phone]
MARINE EQUIPMENT DIRECTIVE
DECLARATION OF CONFORMITY
We hereby declare that the following product is in conformity with the Council Directive 96/98/EC of 20 December 1996
on Marine Equipment as amended by Commission Directive 2002/75/EC of 2 September 2002 and that it has been
type examined as follows.
Product: 406 MHz (COSPAS-SARSAT) Emergency Position Indicating Radio Beacon (EPIRB)
ACR GlobalFix™ RLB-35 (Cat. 1 & Cat. 2)
Notified Body: Bundesamt fϋr Seeschifffahrt und Hydrographie (BSH) – Germany
Notified Body No. 0735
Certificate No. 4612/506 0016/2005
Type Examination: Annex A.1, Item No. A.1/5.6 and Annex B, Module B in the Directive
Standards IMO Res. A.810(19)
IMO MSC.56(66), MSC.120(74)
IMO MSC/Circ.862
IMO Res. A.694(17)
IEC 61097-2
IEC 60945
ETS 300 066
COSPAS-SARSAT C/S T.001
COSPAS-SARSAT C/S T.007
Manufacturer: ACR Electronics Inc., Fort Lauderdale, Florida USA
EU Representative: ACR Electronics Inc. (European Office)
Lymington, Hampshire, UK.
Signed on behalf of ACR Electronics Inc.
Signed : _________________________________
Name: John F. Flood Title: V.P. Engineering
Email: [email protected]
Date: April 11, 2006

Y1-03-0157-2 Rev. G
17
ACR Electronics, Inc.
5757 Ravenswood Road, Ft. Lauderdale, FL 33312-6645
Tel: [phone] Fax: [phone]
www.acrelectronics.com
European Office
1 Rose Cottages, Pitmore Lane, Sway,
Lymington, Hampshire SO41 6BX UK
Tel: [phone] Fax: [phone]
Email: [email protected]
INTERNATIONAL MARITIME ORGANIZATION
SHORE BASED MAINTENANCE
The Maritime Safety Committee approved guidelines for shore-based maintenance (SBM) of satellite EPIRBs, for the
purpose of establishing standardized procedures and minimum levels of service for the testing and maintenance of
satellite EPIRBs to ensure maximum reliability whilst minimizing the risk of false distress alerts.
Ref. T2/6.01
MSC/Circ.1039
Products: 406 MHz (COSPAS-SARSAT) Emergency Position-Indicating Radio Beacons (EPIRBs):
•ACR Satellite 406™ RLB-27/28 (Cat. 1 & Cat. 2)
•ACR Satellite2 406™ RLB-32 (Cat. 1 & Cat. 2)
•ACR RapidFix™ RLB-33 (Cat. 1 & Cat. 2)
•ACR GlobalFix™ RLB-35 (Cat. 1 & Cat. 2)
•ACR Float Free 406 Memory Capsule RLB-35MC (Cat. 1)
Maintenance 406 MHz satellite EPIRBs should be inspected and tested annually in accordance with
Service Interval: MSC/Circ.1040. Shore-based maintenance of all satellite EPIRBs should be carried out
by the flag administration and not exceeding 5 years. It is recommended that
maintenance be performed at the time when the battery is to be changed.
All ACR 406 MHz EPIRBs shall have their first shore-based maintenance performed on
the same dates as their battery replacement.
SBM Providers: ACR only authorizes battery replacements and shore based maintenance to be
performed by certified ACR service providers.
Manufacturer: ACR Electronics Inc., Fort Lauderdale, Florida USA
Signed on behalf of ACR Electronics Inc.
Signed : _________________________________
Name: John F. Flood Title: V.P. Engineering
Date: September 27, 2006