Samyung SNX-300, Instruction Manual

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SNX-300
C.2 NRM – NAVTEX receiver mask
This command is used to manipulate the configuration masks that control which messages are
stored, printed and sent to the INS port of the NAVTEX receiver.
$--NRM,x,x,hhhhhhhh,hhhhhhhh*hh<CR><LF>
message type mask 4
transmitter coverage area mask 3
frequency table index 2, 1 to 9
function code 1, 0 to 9
NOTE 1 The function code is used to further identify the purpose of the sentence. The meaning of the
function code is as follows:
0 – request messages for the given mask
1 – set/report the storage mask
2 – set/report the printer mask
3 – set/report the INS mask
4 to 9 – reserved for future use
NOTE 2 The frequency indicator identifies the frequency that the NAVTEX message was received on:
1 = 490 kHz
2 = 518 kHz
3 = 4209,5 kHz
4 through 9 are reserved for future use
NOTE 3 The transmitter coverage area mask is defined as a 32 bit hex field where the least significant
bit represents transmitter coverage area ‘A’, the next bit is ‘B’ and so on up to bit 25 which is ‘Z’. Bits
31 through 26 are reserved for future use and are set to zero. To select a transmitter coverage area, its
corresponding bit should be set to one. To deselect a transmitter coverage area its corresponding bit
should be set to zero.
NOTE 4 The message type mask is defined as a 32 bit hex field where the least significant bit
represents message type ‘A’, the next bit is ‘B’ and so on up to bit 25 which is ‘Z’. Bits 31 through 26
are reserved for future use and are set to zero. To select a message type its corresponding bit should
be set to one. To deselect a message type its corresponding bit should be set to zero.