KLS-PLB-1-GPSFastfind Plus

Orolia Ltd

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Application Details

Equipment Class: PLB - Personal Locator Beacons
Date of Grant: Jul 01, 2003
Application Purpose: Original Equipment
Date of Application: Jun 16, 2003
Equipment Note: Fastfind Plus
Frequency Range: 121.50000000 - 121.50000000
Company: Orolia Ltd
Country: United Kingdom

Documents & Files

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

Fastfind & Fastfind Plus Personal Locator Beacon Owner’s manual WARNING Use only in situations of grave and imminent danger Register PLB with NOAA SARSAT (refer to details on Page 2 following) before use McMurdo Limited reserves the right to change this specification at any time without notice, and hereby specifically disclaims liability for any consequences of such action. Contents Recommendations and Safety Notices.......................................1 Registration and licensing ...........................................................2 Quick Checklist ...........................................................................3 Introduction .................................................................................4 Preparation for Use .....................................................................4 Operation ....................................................................................5 Self-test ............................................................................................. 5 Emergency operation ........................................................................ 7 Switching off ...................................................................................... 8 Using the PLB in an emergency .................................................9 How does it work?.....................................................................10 PLB Registration.......................................................................11 COSPAS-SARSAT Satellite System.........................................12 Indicators...................................................................................14 Fastfind (non-GPS version) .............................................................14 Fastfind Plus (integral GPS version)............................................... 15 False Alarms and Complete Deactivation.................................17 Service and Maintenance .........................................................18 Before use ....................................................................................... 18 After use.......................................................................................... 18 Inadvertent Activation......................................................................18 Battery Packs ............................................................................18 Spare Parts ..................................................................................... 19 Service ............................................................................................ 19 Verification ...................................................................................... 19 Specification..............................................................................20 McMurdo Limited Product Warranty .........................................22 IMPORTANT Please take time to read this manual carefully and to understand its contents fully, so that you can maintain your PLB and operate it correctly in case of an emergency Page 1 Recommendations and Safety Notices This Fastfind or Fastfind Plus Personal Locator Beacon (PLB) is an emergency radio beacon for use only in situations of grave and imminent danger. False alarms cause expensive disruption to search and rescue services, and may endanger lives. Deliberate misuse of the PLB can result in a severe penalty. Make sure you read this manual and understand how to activate/de- activate your PLB, and how to change the battery packs. Ensure that the PEPIRB is registered with NOAA SARSAT office in Suitland, MD. Failure to register may lead to prosecution. The PLB and battery pack contain no user-serviceable parts. Do not dismantle the PLB or the battery pack. Battery packs contain lithium batteries. Do not incinerate, puncture, deform, or short-circuit. Dispose of spent battery packs safely and in accordance with local waste disposal regulations. The PLB is a radio transmitter, and as such emits radio frequency radiation when activated. This radiation is classified as harmless because of the levels and duty cycles; however it is advisable not to handle the antenna while the unit is transmitting. Page 2 Registration and licensing Each PLB is programmed with a unique digital identity before reaching the customer. This 15 digit hexadecimal number appears on the programming information label located on the back of the PLB (visible when the battery pack is removed), and is pre-printed on the registration card included in the PLB pack. This is the identity which is transmitted to the satellite system when the PLB is activated. The registration form must be completed, signed, and forwarded to the NOAA SARSAT office in Suitland MD by fax or mail as soon as possible. The registration forms are pre-printed with the correct mailing address and fax number. Registration will also be available on-line (anticipated date: August 1 2003) at http://www.sarsat.noaa.gov, or forms may be downloaded now for completion off-line. Use the PLB form in both cases. Emergency Contact It is VITAL that the Emergency Contact information is accurate, particularly regarding the telephone number, as this will be used to validate an alert. Only if the beacon registration and approximate location details can be confirmed will AFRCC (the Air Force Rescue Coordination Center) launch an immediate rescue, otherwise there will be a delay whilst further alerts from the same source are received and verified. You will be sent a sticker which must be attached to the PLB. The most convenient place for this is on the front of the unit clear of the recess for opening the cover. Registration address: NOAA SARSAT Beacon Registration E/SP3, RM 3320, FB-4 5200 Auth Road Suitland MD 20746-4304 FAX: 301-568-8649 Helpline: 301-457-5678 or toll-free: 1-888-212-SAVE (7283). Page 3 Quick Checklist Do: • Test the PLB before taking it on a trip • Ensure that the PLB is registered with NOAA SARSAT • Make sure that you know how to activ…

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Block Diagram

Cover Letter(s)

McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 Request for Type Acceptance for Class 1 and 2, 406MHz Personal Locator Beacon with Integral GPS module. Model: McMurdo Fastfind Plus. Dear Mr Leimer, McMurdo Limited wish to apply for FCC Type Acceptance for the McMurdo Fastfind Plus 406MHz Personal Locator Beacon, manufactured by McMurdo Limited in the United Kingdom. The Personal Locator Beacon, (PLB), features a user replaceable battery pack. Two versions of battery pack will be available from agents allowing the purchaser to choose either a Class 1 (-40ºC) product or a Class 2 (-20ºC) product. The generic PLB electronics has been tested to and meets Class 1 requirements. Part Number: Description FCC Identifier 85-825 (GPS enabled ) Class 2 FCC ID: KLS-PLB-1-GPS 85-845 (GPS enabled) Class 1 FCC ID: KLS-PLB-1-GPS Please note; the Class 1 product is a RTCM Category 2 PLB, ( the unit does not float). The Class 2 product is a RTCM Category 1 PLB, (the unit does float). McMurdo Limited wish to submit for Type Acceptance under the proposed rules defined in FCC 02-271(CFR 47 Part 95, subpart K) and CFR 47 Part 2. ( We note that RTCM Paper 76-2002/SC110-STD does not fully define the characteristics of the Morse ‘P’ transmission. The RTCM have addressed this in RTCM PAPER 23-2003/SC110-274, which is an addendum to RTCM Paper 76-2002/SC110-STD. McMurdo wish to claim compliance with this addendum in support of meeting the requirements of Part 95. The relevant test of the RTCM requirement is reproduced below for reference. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 3 Recommended implementation of the letter “P” requirement Substitute the following entries for “Modulation” and “Modulation Frequency” in Table 2-2 of (RTCM) Recommended Standards for 406 MHz Satellite Personal Locator Beacons (PLBs), Version 1.1 (RTCM Paper 76-2002/SC110-STD), and add Figure 2-0 as follows (added text indicated by underlining ): TABLE 2-2 SUMMARY OF TECHNICAL CHARACTERISTICS OF 121.5 MHz AUXILIARY RADIO-LOCATING DEVICE PARAMETER VALUE RF Signal * * * Modulation 2 Amplitude modulated (3K20A3X) except that a Morse P (2K00A2A) shall be inserted immediately following the (2 s maximum) interruption of the homer signal as indicated in the Figure 2-0 with a dot length (one unit) equal to 115 ms ± 5%. Modulation Frequency An audio signal swept upward or downward by not less than 700 Hz within the range 300 to 1600 Hz except that during the dot and dash intervals of the Morse P the signal shall be modulated at 1000 ± 50 Hz. * * * 2 The A3X emission must have a clearly defined carrier frequency distinct from the modulation sideband components. At least 30% of the total power emitted during any transmission cycle with or without modulation should be contained within ± 30 Hz of the carrier frequency. Additionally, if the emission is interrupted by the transmission of the 406 MHz burst, the carrier frequency must not shift more than ± 30 Hz. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 FIGURE 2-0 FORMAT OF MORSE CODE “P” IN 121.5 MHz HOMING SIGNAL McMurdo Limited originally submitted the Fastfind Plus PLB for test to RTCM 5-97/ SC110-STD in 2001. The FCC referenced RTCM Paper 76-2002/SC110-STD did not exist at that time. The changes between the two specifications mainly reflect the inclusion of the 406.028MHz operating frequency, hence we claim functional equivalence. McMurdo Limited have consulted with NOAA, Paul Steward at the USCG , and George Dillon and Jim (James) Shaffer at the FCC. They all confirm that USCG approval of PLB’s is not required, this is only required for EPIRB’s. Hence no letter of USCG approval is attached to this application. Please Note: A further application for a non GPS PLB with a unique FCC IDwill be submitted at a later date. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 The table below, details where in the exhibits associated with this application, the relevant RTCM test results can be located. RTCM TEST REQUIREMENTS PARA TEST DESCRIPTION LOCATION A3.0 VIBRATION TEST TEST REPORT SX608213 A4.0 BUMP TEST (TEST TO ETSI EN 300 066 CLAUSE 6.4 SUBSTITUTED, AS PULSE DURATION MORE SEVERE AT 18m/s 2 ). TEST REPORT SX608213 A5.0 SALT FOG TEST TEST REPORT SX609598 Page 7 A6.0 DROP TEST TEST REPORT SX609598 Page 8 A7.0 LEAKAGE AND IMMERSION TESTS TEST REPORT SX609598 Page 9 A8.0 SPURIOUS EMISSIONS TEST TEST REPORT 00608213B A9.0 COSPAS-SARSAT TYPE APPROVAL TESTS TEST REPORT RM608213 PLUS SUPPLEMENTARY REPORTS RM608213B and C A10.0 OPERATIONAL LIFE AND SELF TESTS TEST REPORT SX609598 Page 10 and RM608623 A11.0 BUOYANCY TEST (Category 1 only) * A12.0 121.5 MHz AUXILIARY RADIO-LOCATING DEVICE TRANSMITTER TEST TEST REPORT RM608213A. • * Test not formally carried out by a test house. In-house testing successfully carried out in fresh water. Also a Fastfind Plus PLB was used in USCG trials at sea off Key West during March 2003. These tests were witnessed by USCG, NOAA and Cospas-Sarsat personnel. • Please Note: The attached photograph is by courtesy of Doug Ritter, Equipped to Survive Foundation.…

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ID Label/Location Info

UNIQUE 10 2DD6B8383F81 FEO COUNTRY366 PROGRAMMED94320 SERIAL500-000001 UNIQUE 10 2DD6B8383F81 FEO COUNTRY366 PROGRAMMED94320 SERIAL500-000001 UNIQUE 10 2DD6B8383F81 FEO COUNTRY366 PROGRAMMED94320 SERIAL500-000001

Operational Description

McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 TECHNICAL DESCRIPTION OF THE FASTFIND PLUS GPS PLB The FASTFIND PLUS is a 406MHz PLB with a built in 121.5MHz homing beacon and GPS module. It is used to locate a person in distress. When activated, the GPS module acquires and decodes the visible GPS satellites data transmissions, and calculates a position solution. The position data is encoded into the 406 message and transmitted, enabling identification of the vessel and its position, to better than 30m. If no valid GPS data is available, a default position is encoded into the 406 message. In this mode, Doppler shift position calculation is used giving a typical position accuracy of typically 3 km. PLB DESCRIPTION The FASTFIND PLUS consists of six mouldings. The two part main body is made from a thermoplastic mix. Both halves of the main body are internally sprayed with a conductive coating to achieve good EMC performance. The internal PCB is connected to the conductive spray by an internal EMC gasket The two mouldings are screwed together. A gasket made from silicone is used to provide a waterproof seal between the two halves of the body. The antenna is a stainless steel tape antenna, sprayed with a nylon coating. The antenna is coiled and retained in a cavity in the main body moulding. This is accessed by removing the tamper cover; which also exposes the membrane switch assembly. When the tamper cover is removed, the antenna automatically deploys. The unit may then be switched on by momentarily pressing the ON switch. The detachable battery pack consists of two mouldings which are ultrasonically welded together. Both halves of the battery pack are internally sprayed with a conductive coating to achieve good EMC performance. The battery pack is fixed to the main body by a recessed clip and screw arrangement. The FASTFIND PLUS is programmed via an infra-red data link. This means that a unique serial number can be programmed into the FASTFIND PLUS via a RS232 interface. This data is then permanently stored in the PLB. This system enables swift and easy programming of the PLB without having to dismantle it. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 CIRCUIT DESCRIPTION Refer to drawing 85-530C The FASTFIND PLUS PLB is controlled by IC1, an 8-bit micro-controller, with internal EEPROM. The micro-controller is responsible for all board operations. The micro-controller is powered by a 3V4 regulator, IC3, and run by 4MHz crystal X2. The micro-controller may be programmed during self-test with the data to be encoded in the 406 message. Data is input to the RX line from an infrared photodiode, D20, and stored in EEPROM. In operational mode the micro-controller provides the following control signals: 1) Flashes a red LED every 2.6 seconds to indicate normal operation. 2) Sets the PLL line high to enable the 121.5 MHz oscillator. 3) Generates frequency swept square waves on the MOD line to modulate the 121.5MHz transmission. 4) Every 50 se conds initiates a 406MHz transmission sequence. 5) Sets the PLL line low to enable the PLL and VCO circuits. 6) Loads division ratio data to the PLL via the LAT, DAT and CLK lines. 7) Sets the PA line high to enable the 406MHz PA. 8) Holds the DAT and CLK lines static for 160ms to generate un-modulated carrier. 9) Pulses the DAT and CLK lines for 360ms to phase modulate the carrier with encoded data. 11) Turns the GPS regulator, IC11, on and off. 12) Accepts serial NMEA format data from the GPS module and encodes valid position data into the 406MHz message. 13) Flashes a green LED every 2.6 seconds when valid GPS data has been received. A second micro-controller, IC10, is used to generate a Morse ‘P’ transmission. At the end of every 406MHz transmission. The 8-bit micro-controller (PIC 24C671) monitors the timing and modulation signals from the main micro-controller and inserts the Morse 'P' modulation at the correct points in the 121.5MHz modulation signal. The ‘Morse’ micro-controller operates independently from the Fastfind micro-controller and has its own 4MHz clock. The micro-controller generates all necessary timing and modulation signals required to generate the Morse 'P' modulation signal as defined by the relevant specification. A fail- safe design is implemented to ensure that, in the event that the adapter micro-controller fails to start up, for whatever reason, the original swept modulation tone will still be fed to the 121.5MHz transmitter. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 121.5MHz TRANSMITTER Transistor Q4 forms part of a crystal controlled oscillator. IC6 is a regulator which supplies the oscillator with a regulated 5V supply. The oscillator is switched on and off by the micro-controller via D1 and R7. FET Q5 is a modulator/buffer. Amplitude modulation of the 121.5MHz signal is generated by the micro-controller. Modulation is in the form of a square wave, swept down from 1300Hz to 600Hz, with a duty cycle of around 41%. During the Morse ‘P’ transmission, the signal is modulated with a 1KHz tone. The dot length of the Morse ‘P’ characters is fixed at 115ms under the control of micro-controller IC10. The power amplifier, Q8, is operated in Class C mode. The output of the power amplifier is fed to a diplexer. The diplexer acts to combine the 121.…

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Parts List/Tune Up Info

Schematics

LI5220N DET C67 10PF +3V7 10K IC2 LMXI501AM PLL II 10 9 R37 100 10N R456BK PLL DAT R52 10K LEDIRED +3V4 MB III BATT 3V4 121 MODo LED2GREEN PLL 020BCB17-25 012BCB17-25 PLL LATPLL CLK L216BN LCK BATT 9B2 u... ENG APP. CHECKED TST DRAWN C2514 22- DATE 155UE McMur de TITLE F AS TF IND DRAWING No. NMJ PLUS 85-530C SHEET CHANGE

Schematics

REG '11.4V '3V4 R81 R90 39R .-- 10R R8733K TP2 'R' """, DI38AV99 22"F LED 2 3V4 ICI 16LF876-041/50 ..L. C48 PIElO OET DIP MOD PLL LATCH LED I PLL DAT PA ON/OFF PLL LAT TEST PLL CLK LOCK --- PROGRAM82- 5672 ""' UR38 100K 15K PIElO MOD ENG APP. CHECKEDDRAWN C2514 22- DATE 155UE NMJ CHANGE R96 10K GPS-MSI McMur de TITLE F AS TF IND PLUS R94 II R95 LI9 10K 10K 82" VV' C89 10p x... R93 10K DRAWING 85-530C SKI fROG VddPIC RESET fROG CLK fROG DATA NMEA DATA C96 No. 3V3 REG ONI0VI IOFFI3V31 RLI TLI TESLI SHEET

Test Report

REPORT ON Type Approval Testing of the McMurdo Limited 406 MHz Fastfind Plus PLB with internal GPS position encoded data and 121.5 MHz Radio locating device in accordance with C/S T.007 - Issue 3 - Revision 7 October 2000 Report No. RM608213July 2001 REPORT NUMBER RM608213PAGE 1 OF 48 Segensworth Road Fareham Hampshire PO15 5RH UK REPORT ONType Approval Testing of the McMurdo Limited 406 MHz Fastfind Plus PLB with internal GPS position encoded data and 121.5 MHz Radio locating device in accordance with C/S T.007 - Issue 3 - Revision 7 October 2000 Report No. RM608213 PREPARED FORMcMurdo Ltd Silverpoint Airport Service Road Hilsea Portsmouth Hampshire PO3 5PB DISTRIBUTION McMurdo LtdMr R Read Copy No. 1 COSPAS-SARSAT SecretariatCopy No. 2 BABTCopy No. 3 Copy No REPORT NUMBER RM608213PAGE 2 OF 48 CONTENTS:- Page No. Status Page3 Test House Declaration4 Application Form5 LIST OF MEASUREMENTS. The list of measured parameters called for in C/S T.007 - Issue 3 - Revision 7 October 2000 is given below. Tables Effective Radiated Power (dBm)/Antenna Gain (dBi)7 Summary of 406 MHz Beacon test results8 Graphs Spurious Output14 Thermal Shock17 Temperature Gradient22 Operating Lifetime at Minimum Temperature32 Photographs Photographs of test sample(s)37 Annex A Technical Data Annex B Results of the Satellite Qualitative Test and Antenna Characteristics Annex C Beacon coding software sample messages For copyright details see page 48 of 48. REPORT NUMBER RM608213PAGE 3 OF 48 Manufacturer:McMurdo Ltd Type Designation:Fastfind Plus Serial No.:3 Number of Samples Tested:One Test Specification:C/S T.007 Issue 3 – Revision 7 October 2000 Date of Receipt of Test Sample:16 th May 2001 Start of Test:6 th June 2001 Finish of Test:9 th July 2001 Test Engineer(s):N Forsyth REPORT NUMBER RM608213PAGE 4 OF 48 TEST HOUSE DECLARATION We, BABT of Segensworth Road, Titchfield, Fareham, Hampshire PO15 5RH, declare under our sole responsibility that the product : Equipment :406 MHz PLB with internal GPS position encoded data and 121.5 MHz radio locating data Type :- Model :Fastfind Plus Serial Number : 3 Quantity : One to which this declaration relates is in conformity with the following standard(s) or other normative document(s) : C/S T.007 - Issue 3 - Revision 7 October 2000 Detailed results are recorded in Test Report No. RM608213 Place and date of issue : Titchfield, July 2001 Signature : M JENKINS Wireless Telecoms Group Manager Date : 19 th July 2001 REPORT NUMBER RM608213PAGE 5 OF 48 APPLICATION FOR A COSPAS-SARSAT 406 MHz BEACON TYPE APPROVAL CERTIFICATE Beacon Manufacturer : McMurdo Ltd Beacon Model : Fastfind Plus Name and Location of Beacon Test Facility : BABT Beacon Type : Aviation : [ ] Land : [ ] Maritime : [ ] Specified Operating Temperature Range : -40°C to +55°C Specified Operating Lifetime : 24 hr. [ ] 48 hr. [ ] Other [ ] Specify : Beacon Battery Type(s) : Chemistry : Lithium Manufacture & Model No. : Saft LO29 or Energiser L-91 Size & number of cells : 4 x ‘C’ or 7 x ‘AA’ Extra Features in Beacon :NoYesDetails a) Auxiliary Radio-Locating Device :[][]Frequency : 121.5 MHz Power : +25 mW Min Tx. Duty Cycle : 100% b) Transmits Encoded Position Data : [][]Nav. Device Internal Type. GPS c) Transmits Long Message (144 bits) :[][] d) Automatic Activation :[][] e) Built-in Strobe Light :[][]Intensity : Flash rate : f) Self-test mode :[][]- g) Other :[][]Specify : I hereby confirm that the 406 MHz beacon described above has been successfully tested in accordance with the Cospas-Sarsat Type Approval Standard (C/S T.007) and complies with the Cospas-Sarsat Specification (C/S T.001) as demonstrated in the attached report. Dated : 16-07-01Signed : (for test facility) REPORT NUMBER RM608213PAGE 6 OF 48 406 MHz BEACON SELF-TEST CHARACTERISTICS 406 MHz Beacon Model(s) : 503-1 Answer () YesNo 1.Does beacon have a self-test mode ? if yes : •does self-test have a separate switch position ? •does self-test switch automatically return to normal position when released ? if not, how long until the first "distress" message is emitted : •does self-test transmit a 406 MHz signal ? if yes : -unmodulated signal only -normal data, but with inverted frame synchronization pattern -1 burst only -2 bursts only -3 or more bursts •does self-test transmit a 121.5 MHz signal ? if yes : -for less than 1 second -continually while self-test switch is activated -other (please specify) : •does self-test transmit any other frequency (e.g. 243 MHz) ? 2.Result of self-test is indicated by : •pass/fail display indicator light •strobe light flash •other (please specify) : ≈ 400 Hz Tone (Beep) 3.Can the self-test be performed without removing the beacon from its mounting bracket ?N/A 4.What parameters are internally tested by the self-test ? •battery voltage •RF power •approximate RF frequency •phase locked loop •other (please specify) : GPS NMEA header correct 5.Do the above characteristics apply to this beacon model : •for all countries where beacon is sold ? if no, please specify : •for all production serial numbers ? if no, please specify : 6.Comments : REPORT NUMBER RM608213PAGE 7 OF 48 Ambient temperature............22°C Relative humidity............48% 406 MHz BEACON ANTENNA TEST RESULTS Table 1: EFFECTIVE RADIATED POWER (dBm) / ANTENNA GAIN (dBi) Azimuth Angle (degrees) Elevation Angle (degrees) 102030404750* 038.25 / 0.3641.13 / 3.2440.56 / 2.6738.04 / 0.1534.09 / -3.830.15 / -7.74 3038.17 / 0.2841.33 / 3.4440.66 / 2.7738.12 / 0.2334.09 / -3.830.19 / -7.7 6038.18 / 0.2941.43 / 3.5440.77 / 2.8838.12 / 0.2334.14 / -3.7530.43 / -7.46 9038.3 / 0.4141.44 / 3.5540.99 / 3.1038.03 / 0.1434.13 / -3.7630.55 / -7.34 12038.49 / 0.6041.74 / 3.8540.91 / 3.0237.85 / -0.0433.95 / -3.9430.68 / -7.21 15038.99 / 1.1041.54 / 3.6540.8 / 2.9137.55 / -0.3433.84 / -4.0530.68 / -7.21 18039.08 / 1.1941.54 / 3.6540.89 / 3.0037.43 / -0.4633.94 / -3.9530.84 / -7.05 21038.87 / 0.9841.43 / 3.5440.87 / 2.9837.51 / -0.3833.96 / -3.9331.05 …

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Test Report

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Contact Information

Applicant

Erwan Thomas(Certification and hardware engineer)

[email protected]+33(0)291024983Fax: +33(0)297650020

Technical Contact

McMurdo LimitedRichard A Read

[email protected]+44(0)239262

Silverpoint · Portsmouth · United Kingdom

Non-Technical Contact

McMurdo LimitedDerek Carr

[email protected]+44(0)239262

Technical Specifications

#	Rule Parts	Frequency Range	Power Output	Emission	Tolerance
3	95K	121.5 MHz - 121.5 MHz	25.00 mW	2K00A2A	50 ppm

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Documents & Files

Select a file to view

Users Manual

↗

Attestation Statements

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Block Diagram

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Cover Letter(s)

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External Photos

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ID Label/Location Info

↗

Internal Photos

↗

Operational Description

↗

Parts List/Tune Up Info

↗

Schematics

↗

Test Report

↗

Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

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Block Diagram

Cover Letter(s)

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ID Label/Location Info

Operational Description

McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 TECHNICAL DESCRIPTION OF THE FASTFIND PLUS GPS PLB The FASTFIND PLUS is a 406MHz PLB with a built in 121.5MHz homing beacon and GPS module. It is used to locate a person in distress. When activated, the GPS module acquires and decodes the visible GPS satellites data transmissions, and calculates a position solution. The position data is encoded into the 406 message and transmitted, enabling identification of the vessel and its position, to better than 30m. If no valid GPS data is available, a default position is encoded into the 406 message. In this mode, Doppler shift position calculation is used giving a typical position accuracy of typically 3 km. PLB DESCRIPTION The FASTFIND PLUS consists of six mouldings. The two part main body is made from a thermoplastic mix. Both halves of the main body are internally sprayed with a conductive coating to achieve good EMC performance. The internal PCB is connected to the conductive spray by an internal EMC gasket The two mouldings are screwed together. A gasket made from silicone is used to provide a waterproof seal between the two halves of the body. The antenna is a stainless steel tape antenna, sprayed with a nylon coating. The antenna is coiled and retained in a cavity in the main body moulding. This is accessed by removing the tamper cover; which also exposes the membrane switch assembly. When the tamper cover is removed, the antenna automatically deploys. The unit may then be switched on by momentarily pressing the ON switch. The detachable battery pack consists of two mouldings which are ultrasonically welded together. Both halves of the battery pack are internally sprayed with a conductive coating to achieve good EMC performance. The battery pack is fixed to the main body by a recessed clip and screw arrangement. The FASTFIND PLUS is programmed via an infra-red data link. This means that a unique serial number can be programmed into the FASTFIND PLUS via a RS232 interface. This data is then permanently stored in the PLB. This system enables swift and easy programming of the PLB without having to dismantle it. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 CIRCUIT DESCRIPTION Refer to drawing 85-530C The FASTFIND PLUS PLB is controlled by IC1, an 8-bit micro-controller, with internal EEPROM. The micro-controller is responsible for all board operations. The micro-controller is powered by a 3V4 regulator, IC3, and run by 4MHz crystal X2. The micro-controller may be programmed during self-test with the data to be encoded in the 406 message. Data is input to the RX line from an infrared photodiode, D20, and stored in EEPROM. In operational mode the micro-controller provides the following control signals: 1) Flashes a red LED every 2.6 seconds to indicate normal operation. 2) Sets the PLL line high to enable the 121.5 MHz oscillator. 3) Generates frequency swept square waves on the MOD line to modulate the 121.5MHz transmission. 4) Every 50 se conds initiates a 406MHz transmission sequence. 5) Sets the PLL line low to enable the PLL and VCO circuits. 6) Loads division ratio data to the PLL via the LAT, DAT and CLK lines. 7) Sets the PA line high to enable the 406MHz PA. 8) Holds the DAT and CLK lines static for 160ms to generate un-modulated carrier. 9) Pulses the DAT and CLK lines for 360ms to phase modulate the carrier with encoded data. 11) Turns the GPS regulator, IC11, on and off. 12) Accepts serial NMEA format data from the GPS module and encodes valid position data into the 406MHz message. 13) Flashes a green LED every 2.6 seconds when valid GPS data has been received. A second micro-controller, IC10, is used to generate a Morse ‘P’ transmission. At the end of every 406MHz transmission. The 8-bit micro-controller (PIC 24C671) monitors the timing and modulation signals from the main micro-controller and inserts the Morse 'P' modulation at the correct points in the 121.5MHz modulation signal. The ‘Morse’ micro-controller operates independently from the Fastfind micro-controller and has its own 4MHz clock. The micro-controller generates all necessary timing and modulation signals required to generate the Morse 'P' modulation signal as defined by the relevant specification. A fail- safe design is implemented to ensure that, in the event that the adapter micro-controller fails to start up, for whatever reason, the original swept modulation tone will still be fed to the 121.5MHz transmitter. McMurdo Limited Silver Point, Airport Service Road, Portsmouth, Hampshire, UK PO3 5PB Phone: +44 (0) 23 9262 3900 Fax: +44 (0) 23 9262 3998 www.mcmurdo.co.uk Registered in England No. 746603 Registered Office: 1650 Parkway, Whiteley, Fareham, Hants, PO15 7AH VAT NO GB 421 1393 92 121.5MHz TRANSMITTER Transistor Q4 forms part of a crystal controlled oscillator. IC6 is a regulator which supplies the oscillator with a regulated 5V supply. The oscillator is switched on and off by the micro-controller via D1 and R7. FET Q5 is a modulator/buffer. Amplitude modulation of the 121.5MHz signal is generated by the micro-controller. Modulation is in the form of a square wave, swept down from 1300Hz to 600Hz, with a duty cycle of around 41%. During the Morse ‘P’ transmission, the signal is modulated with a 1KHz tone. The dot length of the Morse ‘P’ characters is fixed at 115ms under the control of micro-controller IC10. The power amplifier, Q8, is operated in Class C mode. The output of the power amplifier is fed to a diplexer. The diplexer acts to combine the 121.…

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Parts List/Tune Up Info

Schematics

Test Report

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Test Report

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