User's Manual

Y1-03-0241, rev.T2
11
SECTION 7 – TECHNICAL INFORMATION
7.1 Characteristics
The PLB350 series are battery operated Personal Locator Beacons. The beacon case, with its antenna, is
waterproof, while semiconductor circuits are mounted within the case assembly which also contains the
battery power supply. Keypads with “self test” and “ON” buttons are installed on the case, along with an
internal beeper and three LEDs. The beacon contains a GPS receiver that will acquire your LAT/LON located
under the bottom of the front case.
The PLB350 series meet the requirements of Federal Communications Commission (FCC) Part 95 Subpart K;
and European R&TTE Directive.
NOTE: FCC approval is pending. R&TTE approval is pending. CE mark is pending.
7.2 Applicable Documents
COSPAS- SARSAT C/S T.001 Specification for 406 MHz Distress Beacons
COSPAS- SARSAT C/S T.007 406 MHz Distress Beacon Type Approval Standard
ETSI 302 152-1 Technical Characteristics of 406 MHz Satellite PLBs
RTCM Paper 76-2002/SC110-STD RTCM Recommended Standards for 406 MHz Satellite PLBs
Industry Canada RSS-287 Radio Standards Specification for EPIRBs, ELTs and PLBs
Australia/New Zealand AS/NZS 4280.2 406 MHz Satellite Distress Beacons; Part 2: PLBs
NOTE: For all other type approval information, please visit our website at www.acrelectronics.com.
7.3 Specifications
406 MHz Transmitter
Frequency 406 MHz
Output Power 5 watts
Frequency Stability ±2 parts per billion/100ms
Digital Message:
Format
Long message Serialized
1*
Message protocol Standard Location
Duration 520 ms
Rate 400 bps
Encoding Biphase L
Modulation ±1.1 radians peak
1*
Beacons are shipped from ACR with a Serialized code but can be reprogrammed at a service center to
other coded formats including nationality of registration.
121.5 MHz Transmitter
Frequency: 121.5 MHz
Frequency Tolerance ±50 ppm
Output Power 25 mW PEP
Morse Code “P” ID Every 50 seconds (approximately) (U.S. Protocol)
Modulation
Type AM (3K20A3N)
Sweep Range 400 to 1200 Hz
Sweep Rate 3 Hz
Duty Cycle 37.5%
Morse P AM (2K00A2A) (U.S. Protocol)
STROBE
LIGHT
Light color Bright White
Flash rate 1 flash per 3 seconds