These two characters define the serial number of each B2 message type (class). Generally serial numbers start with the numbers '01', however in special circumstances, the numbers begin with '00'. This forces the receiver to print the message.
Jvcomm32 2 01 Serial Number 5
There are also a number of software packages available, such as SeaTTY, Mscan, JNX, Fldigi or JVComm32, allowing messages to be decoded by a PC with a suitable receiver connected to the computer's soundcard. Any general communications receiver capable of audio reception at 518 kHz or 490 kHz single sideband can be used. 2ff7e9595c
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