4.4. NetSDR Misc Control Items
4.4.1 Pulse Output Modes
Purpose: Controls various Hardware Pulse output modes.(requires Hardware Option)
Control Item Code: 0x00B6
Control Item Parameter Format:
The first parameter is a 1 byte channel ID and is ignored.
Parameter 2 is a1 byte value specifying the pulse output mode:
0 = No Hardware output (default)
1 = Run State. High while NetSDR is capturing, Low when Idle.
2 = Run Pulse. High when capture starts then toggles every 32768 output samples.
3 = Sample Rate. Toggles at the DDC output sample rate.
Example, to set the Output Pulse mode to Sample Rate mode:
The host sends this:
[06][00] [B6][00] [00] [03]
The Target responds with:
[06][00] [B6][00] [00] [03]
4.4.2 Data Output Packet Size
Purpose: Sets the UDP data packet size for the NetSDR.
Control Item Code: 0x00C4
Control Item Parameter Format:
The first parameter is a 1 byte value specifying the UDP Packet size(0 or 1).
Setting to a smaller packet size(MTU) may aid in routing over high speed Internet connections.
0 == Large UDP packets (1444 bytes(24bit data) or 1028 bytes(16bit data) ) (default)
1 == Small UDP packets (388 bytes(24bit data) or 516 bytes(16bit data) )
To set the UDP packet size to small the host sends:
[05][00] [C4][00] [01]
The Target responds with:
[05][00] [C4][00] [01]
4.4.3 Data Output UDP IP and Port Address
Purpose: Sets the UDP IP address and Port number for the NetSDR data output.
Control Item Code: 0x00C5
Control Item Parameter Format:
The first parameter is a 4 byte Little Endian value specifying the UDP IP Address.
If this command is not sent, then the NetSDR will use either the same IP address of the TCP Client that is connecting
to it, or the UDP IP address set from the front panel of the unit.
The second parameter is a 16 bit port number in little endian format from 0 to 65535 that gets used by the UDP
instead of the Port number of the TCP socket. This value is volatile and not saved on power down so should be set after
connecting to the NetSDR and before running.
To set the UDP IP address to 192.168.3.123 and port to 12345:
[0A][00] [C5][00] [7B][03][A8]C0] [39][30]
The Target responds with:
[0A][00] [C5][00] [7B][03][A8]C0] [39][30]
Rev. 1.03 2011-11-01
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