Struct Wsjt77Message 

pub struct Wsjt77Message;

WSJT 77-bit message codec used by FT8, FT4, FT2 and FST4.

Pure wrapper around the free functions in wsjt77, implementing the generic crate::MessageCodec trait so pipeline code can consume messages without knowing which concrete protocol produced them.

Trait Implementations

impl Clone for Wsjt77Message

fn clone(&self) -> Wsjt77Message

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Wsjt77Message

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Wsjt77Message

fn default() -> Wsjt77Message

Returns the “default value” for a type.

impl MessageCodec for Wsjt77Message

fn verify_info(info: &[u8]) -> bool

Wsjt77 reserves the trailing K-77 info bits for a CRC. Two flavours coexist in the WSJT-X family: FT8 / FT4 / FT2 use LDPC(174, 91) with a 14-bit CRC at bits 77..91, while FST4 uses LDPC(240, 101) with a 24-bit CRC at bits 77..101. Both share the same Wsjt77 77-bit message field; only the CRC width differs by FEC pairing. We length-dispatch on the info slice the FEC layer passes through here:

• 91 → crate::fec::ldpc::check_crc14
• 101 → crate::fec::ldpc240_101::check_crc24
• other → reject (no Wsjt77-compatible CRC for that K)

const PAYLOAD_BITS: u32 = 77

Number of information bits consumed by pack / produced by unpack.

const CRC_BITS: u32 = 14

CRC width guarding the payload during transmission (0 if the FEC itself provides all error detection, as with JT65 Reed–Solomon).

type Unpacked = String

Decoded high-level representation returned by unpack.

fn pack(&self, fields: &MessageFields) -> Option<Vec<u8>>

Encode high-level fields to a bit vector of length PAYLOAD_BITS. Returns None on encoding failure (invalid callsign format, overflow…).

fn unpack(&self, payload: &[u8], ctx: &DecodeContext) -> Option<Self::Unpacked>

Decode a PAYLOAD_BITS-long bit vector to the protocol-specific unpacked representation. ctx carries side information such as the callsign-hash table.

impl Copy for Wsjt77Message

impl WsjtApCompatible for Wsjt77Message