BREITLING USA E56X21-Y Back-up survival instrument intended for use in the event of aviation accident. User Manual Part four of eight of the Breitling Emergency

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Document ID	58117
Application ID	5hL8Zw97jXTFIyxa8uLfjA==
Document Description	Part four of eight of the Breitling Emergency user manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	311.02kB (3887729 bits)
Date Submitted	1999-09-07 00:00:00
Date Available	2000-07-20 00:00:00
Creation Date	1999-08-24 23:02:28
Producing Software	Adobe Photoshop for Macintosh
Document Lastmod	1999-08-24 23:02:43
Document Title	Part four of eight of the Breitling Emergency user manual
Document Creator	Adobe Photoshop 5.0

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SPECIFICATIONS OF THE 121.5 MHZ TRANSMITTER
1. Principles:
The transmitter broadcasts a signal for 0.75 seconds
every 2.25 seconds on 121.5MHZ, amplitude
modulated,
The power to the antenna is equal or more than 30mW
for 24 hours in an ambient temperature of 20°C.
Withdrawing the antenna starts the continuous
transmission.
The transmitter consists of :
— quartz oscillator,
— power stage.
— clock and modulator.
~ powersupply.
m antenna,
2. Reliability :
2.1 Life
The device is expected to remain functional for at
least 50,000 hours at 30°C
2.2 Quality control
Compliance with the industrial-process DQA
(11038 specification, published by quality service
of Dassault Automatismes e! Te’le’communimtions.
3. Environmental constraints:
3.1 Climate
3.1.1 Operating conditions
Conditions in which the transmitter func-
tions indefinitely at constant performance.
The equipment is designed to keep within
its operating specifications under the fol-
lowing conditions :
— Temperature : -10°C to +85°C (‘l
— Humidity : RH s 95%
— Water resistance : Non-resistant
material
C’) The specified duration of trans-
mission is guaranteed at 20°C
3.2.2 Sturage conditions
— Temperature : 40°C to +100°C
— Humidity : RH S 957:
3.3 Electromagnetic environment
The equipment is not designed to function
close to a powerful transmitter.
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4. Power Specifications:
4,1 Electrical specifications
Mean transmitting frequency :
121.5MHZ 1 3l5kHz
Phased signal rejection 2 z > lSdB
Phased signals rejection >2 : 2 25:18 outside
modulation spectmm
Peak modulated power to antenna : 2 30mW
Modulation type: AM
modulation rate from 8570 to 100%,
signal modulation by decreasing sweep on a
minimum frequency range of 7001-11 in the
1600Hz to 300Hz bands Sweep frequency
from 2Hz to 4Hz,
utilization rate of modulation signals to the
carrier wave: 33% to 55%.
Antenna 43 cm tunedl
The transmitter is powered by extracting the
antenna. During transmission, a CMOS signal
generates a visual display on the watch.
Power supply is from two 3V lithium
batteries, which will maintain transmitting
power from 24 to 48 hours at a minimum
temperature of 20°C.
5. Dimensions:
— Module diameter : S 32mm
- Height of electronic components : 5 4mm
— Height of batteries and housing : 5 6mm
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1. INTRODUCTION
The BREITHNG EMERGENCY is a back-up survival instrument for pilots. It consists of a multi—function
watch equipped with a miniature transmitter to locate people in distress. The miniature radio
transmitter broadcasts a signal on the international aviation distress frequency of 121.5MHz, used by
all rescue services. The EMERGENCY complements the 121.5MHz distress beacons in aircraft. Designed
to be worn on the wrist, it is not intended as a primary distress beacon
Warning: The transmitter may only be activated in the case of distress in aviation. Unwarranted
operation of the transmitter is subject to a fine and may entail additional costs for search and rescue
activities launched in response to a signal on the distress frequency The owner is exclusively liable
for any consequences (including prosecution) of misuse by any party. Neither the manufacturer of the
transmitter nor its distributor can be held responsible for any improper use.
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2. CONTENTS OF THE EMERGENCY CASE
The BkelrLlNc. EMEkGhNLV watch is delivered in a case
containing the following:
EMERGENLY transmitter-watch
Test receiver with separate batteries
Cross-head screw-driver
Presentation video (VHS)
Instruction manual
P‘PP’NS‘
4 5 I
3. DESCRIPTION
23
3.1 The 121.5MHz frequency
The 121.5MHz radio frequency is reserved internationally
for aeronautical distress transmissions.
All airmail operating under international civil-aviation
rules carry a radio beacon set to 121.5MHz and 243 or
406.03MH1. [n the event of a crash, this beacon auto-
matically broadcasts signals to alert and guide rescue
services. The EMERGENCY persona] transmitter-watch
complements the aircraft’s distress beacon and increases
the chance of being found.
10
3.2 Transmission and range
The transmitter-Watch broadcasts an amplitude-
modulated signal on 1215an for 0.75 seconds every
2.25 seconds. In addition, the EMERGENCY identifies its
signal by transmitting the Morse letter B (----) every 60
seconds.
The transmitter will broadcast for 24 to 48 hours according
to the state of the battery and the temperature. Its power is
rated at a peak of 30mW,
The range of the signal transmitted by the BREITLING
EMhRCENCY varies according to the terrain, the location of
the transmitter and the height of the Search aircraft above
the transmitter.
In aim: conditions, nansmmiax
fmma mountain pmk, fiyrmmple,
thelilstress sigmlcun be picked ay
4mm (220nm) away by an an-
craft flying at 10,000," 133mm).
rm". flat land, m.- mlrgv depends
on the height at the aircraft. Tha
signal tariffs 36k": «20mm in an
aircraft at 900m (satin/r) and
1601011 (swim) in an aircraft ril
6000m (12,000fi).
Thc range from a boat ar sea is the
same as that {mm a flat amt (see
about). Signals fmm a survivor
floating in a when m calm sea
can be mtclved an estimated 50m
(30m) away by an aima/l at
500m ”6501“.
In deep valleys or broken terrain, the range of the
transmitter is largely determined by its location,

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