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The received samples are carried by UDP frames with a total xed payload size
of 1442bytes. Each sample consists of 3 Bytes I and 3 Bytes Q data. They are
interleaved. The rst byte of each UDP frame carries a sequence number that
is incremented from frame to frame. It can be used to identify a loss of UDP
messages during reception. The second byte is used for signalling the current
status of the reception. Bit 0 is used as Key indication. If it is 0 the PTT is
issued and if it is 1 the PTT is not active. Bit 1 indicates clipping of the ADC
(overrange). The data format of the samples is little endian (least signicant
byte rst) with real words at the odd (rst) positions and the imaginary words
at the even (second) positions