User Manual

Marine Systems
Aviation Recorders
Automatic Identification System
Page B--3
Rev. 06165M0014--10
Mar . 16/11
PROTEC AIS Transmit Output Power and Error
B.1. Transmit Output Power and Error
The transmit output power of this unit is specified in International Telecommunication Union --
Radiocommunication Sector (ITU --R) 1371--3, Table 3, as follows:
Low Tx Power:
Nominal: 33 dBm = 2.0 watt
Maximum: 34.5 dBm = 2.8 watt
Minimum: 31.5 dBm = 1.4 watt
High Tx Power:
Nominal: 41 dBm = 12.5 watt
Maximum: 42.5 dBm = 17.8 watt
Minimum: 39.5 dBm = 8.9 watt
The acceptable high and low tolerances, above, are based on ITU--R 1371 --3, Table 5, which
specifies a carrier power error of +/-- 1.5 dBm.