User Guide

Y1-03-0180 Rev. A
20
SECTION 7 - AUTHORIZATIONS
7.1 Type Approvals
7.1.1 The ThunderBird SSAS meets the requirements of Federal Communications Commission (FCC)
Part 80 and GMDSS. FCC ID: B66ACR-RLB-33S
7.1.2 COSPAS-SARSAT Type Approval Certification No.141
7.2 Characteristics
7.2.1 The ThunderBird SSAS is a floatable, 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 thumb switch is installed on top of the beacon. The beacon
must be stored in its special mount.
7.3 Technical data — ThunderBird SSAS (P/N 2800)
7.3.1 Applicable Documents
IMO Chapter XI-2, Regulation 6: Ship Security Alert System
RTCM Recommended Standards for Ship Security Alert Systems (SSAS) Using
the Cospas-Sarsat Satellite System
COSPAS-SARSAT Interim Cospas-Sarsat Type Approval Guidelines for 406 MHz SSAS
Beacons
FCC Part 80 and GMDSS
7.3.2 Specifications
406 MHz Transmitter
Frequency 406 MHz
Frequency Stability ±2 parts per billion/100ms
Output Power 5 watts
Digital Message
Format
Serialized
1
Duration 520 ms
Rate 400 bps
Encoding Biphase L
Modulation ±1.1 radians peak
Antenna
Frequency 406 MHz
Polarization Right-Hand Circular (RHCP)
VSWR Less than 1.5:1
General/Environmental
Battery Life
Operating 48 hours minimum
Replacement Interval 5 years