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Summary of Contents for Rhotheta RT-B77 HELB
- Page 1 User Manual fficiency ocator eacon...
- Page 2 E-Mail: email@rhotheta.de Copyright RHOTHETA Elektronik GmbH All rights reserved Issue: [2015/01/29] [Rev 1.06.c] NOTE RHOTHETA Elektronik GmbH reserves on making modifications at any time and without pre- vious information of the here described product. Page 2 of 26...
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Page 3: Table Of Contents
RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Contents USER INFORMATION Legend of Symbols EU DECLARATION OF CONFORMITY SECURITY Basic Safety Safety - Batteries USE, CHARACTERISTICS ... - Page 4 RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB TECHNICAL DATA MAINTENANCE Cleaning Battery Change DISPOSAL WITHIN THE EUROPEAN UNION 10.1 Product Disposal 10.2 Disposal of Batteries ...
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Page 5: User Information
The full text of the EU declaration of conformity is available at the following internet address: http://www.rhotheta.com/products/rt_b77_helb The personal locator beacon RT-B77 HELB is determined for use in all Member States of the European Union except Belgium. Page 5 of 26... -
Page 6: Security
The manufacturer is not liable beyond the scope of legal rules! This guide is part of the product RT-B77 HELB and is retained throughout the lifetime and to pass with the product. Page 6 of 26... -
Page 7: Basic Safety
Activation and transmission on any test frequency can disturb communication on the air band and occurs on the own risk of the RT-B77 HELB user. When perform- ing any rescue training or transmissions on a training frequency, the user has to ask for permission at the appropriate local authority of the country where the bea- con is used. -
Page 8: Safety - Batteries
It is optimised for MOB (man over board) applica- tions. WARNING For use on water, the RT-B77 HELB shall be fixed on a life jacket, a survival suit, a life raft or other qualified personal safety equipment. 4.2 Characteristics and Special Features of the RT-B77 HELB The RT-B77 HELB is a light weight device offering high wearing comfort. - Page 9 RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Waterproof housing • Comfortable verifiability and maintenance via IrDA interface • Software update via serial interface • Page 9 of 26...
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Page 10: Short Description
RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB 5 Short Description Page 10 of 26... - Page 11 RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Pos. Designation Function Chapter Monopole Antenna Straight monopole antenna 90° Antenna 90° angled antenna for use with a life jacket Function Indication LEDs are blinking when the RT-B77 HELB is WHITE activated or the self test indicates no failure...
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Page 12: Operation
6 Operation 6.1 Short Instruction for Use There are three points you should observe when using routinely the beacon RT-B77 HELB. I. While or after you have fastened your rescue equipment (life west), turn the rotary switch (8) into position ARM (see below chapter 6.2). -
Page 13: Activation
Before the beacon can be activated, it has to be armed with the rotary switch (see chapter 6.2). The RT-B77 HELB features 3 different ways of activation (see below chapter 6.3.1; 6.3.2; 6.3.3). If the RT-B77 HELB is activated, the... -
Page 14: Pull-Away Activator
On special request the Pull-Away Activator could be disabled and is not removable. Modified beacons are marked by a label. 6.3.3 Water Contact If the RT-B77 HELB is immersed into water for more than 10 seconds the PLB will be activated automati- cally. For that the water contacts behind the slots have to be bridged by water. -
Page 15: Switching Off
(standard, service, test) it will stop with the voice message: “Power OFF”. If the RT-B77 HELB was just armed you will get no acoustic feedback. NOTE Also, in this case the unit did not consume battery power. Page 15 of 26... -
Page 16: Self Test
The advanced self-test routine (factory setting) activates the complete amplifier circuit of the transmitter electronics. During this test the RT-B77 HELB will transmit a RF carrier-signal on the preselected training frequency for about a ¼ second. So the whole electronics can be checked, making the test more reliable and conform to legal regulations. -
Page 17: Training Mode
LED (11). YELLOW Now the RT-B77 HELB is armed on the test frequency (factory setting: 121.650 MHz) and can be activated as described in chapter 6.3. Turn rotary switch (8) into position OFF to exit the training mode and switch off the beacon if it was activated. -
Page 18: Intelligent Power Management
RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Intelligent Power Management It is an important feature of the RT-B77 to use the available power at its best in all possible scenarios of use. Therefore a complex, intelligent power management is necessary for bat- tery-driven mobile devices, in order to guarantee in e.g. -
Page 19: Exact Description Of The Individual Transmission Cycles
RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB hours of permanent operation, the Power Save Mode will be activated. This mode has been optimized to run the RT-B77 without interruption as long as possible (> 50 hours). Chart of the three different RT-B77 power modes: Max. - Page 20 RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Endurance Mode: Power Save Mode: (1) Short speaker output of the ELT sweep tone using the internal RT-B77 speaker, getting an audible feedback for the user of the activated emergency beacon. (2) Unmodulated RF transmission pulse with high output power optimised for the use with homing and direction finder units (best bearing accuracy and max.
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Page 21: Technical Data
RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Technical Data Operating frequency: 121.500 MHz (VHF) Training frequency: Pre-selectable (in 25 kHz increments between 120.000 and 125.000 MHz) Frequency precision: Better than ±500 Hz Output power: 2 W* Modulation: A3X, ASK (software definable), FSK (on request) Ambient temperature: -20 °C to +55 °C... -
Page 22: Maintenance
All counters will be reset, the electronics will be checked and the tightness of the housing. ATTENTION Warranty will expire if battery change or service is not executed by RHOTHETA Elektronik GmbH or an authorized person (service partner). If it is not possible to change the batteries at an authorized service station or if is it not de- sired, you can change the batteries by yourself. - Page 23 RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Procedure of battery change: a) Turn rotary switch (8) to OFF position b) Open battery case bolts using torx-screwdriver (size: TX 8) and remove the battery case c) Remove both batteries d) Change seal ring...
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Page 24: Disposal Within The European Union
Therefore, supply the device to an electronics recycling after the final taken out of ser- vice. The RHOTHETA Elektronik GmbH takes back all products that are subject to the re- quirements of the WEEE Directive (2002/96/EC) of the European Union to supply the- se products to professional disposal. -
Page 25: Notes
RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB 12 Notes Page 25 of 26... - Page 26 RHOTHETA User Manual Personal Locator Beacon RT-B77 HELB Page 26 of 26...
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