m17

Oct 13, 2026

Changes in this version

type LSF

+ func (l *LSF) SetCAN(can byte)

Oct 9, 2026

Changes in this version

+ func IsBroadcast(dst EncodedCallsign) bool

+ func IsParrot(dst EncodedCallsign) bool

type Packet

+ func ParrotReply(pkt Packet) Packet

+ type Probe struct

+ func NewProbe() Probe

+ func (p Probe) IsReply(pkt Packet) bool

+ func (p Probe) Packet(src EncodedCallsign) Packet

Oct 5, 2026

Changes in this version

type Packet

+ func (p Packet) SMSText() string

Sep 21, 2026

Changes in this version

+ const SoftFalse

+ const SoftMaybe

+ const SoftTrue

+ func SyncDistance(symbols []Symbol, offset int, sps int) (float32, uint16)

type Preamble

+ const LSFPreamble

type SoftBit

+ func CalcSoftbits(pld []Symbol) []SoftBit

Feb 26, 2026

Changes in this version

+ type BatchFMModulator struct

+ func NewBatchFMModulator(sampleRate float64) *BatchFMModulator

+ func (fm *BatchFMModulator) Modulate(baseband []float64, deviationHz float64) []complex128

+ func (fm *BatchFMModulator) Reset()

+ type BatchResampler struct

+ func NewBatchResampler(interpFactor, decimFactor int) *BatchResampler

+ func (r *BatchResampler) Process(input []float64) []float64

+ func (r *BatchResampler) Reset()

+ type ComplexDCRemoval struct

+ func NewComplexDCRemoval(sink chan complex128, alpha float64) ComplexDCRemoval

+ type FMDemodulator struct

+ func NewFMDemodulator(sink chan complex128) FMDemodulator

+ type MaxAbsDecimator struct

+ func NewMaxAbsDecimator(sink chan float32, factor int) MaxAbsDecimator

+ type PolyphaseDecimator struct

+ func NewPolyphaseDecimator(sink chan complex128, taps []float64, decimFactor int) PolyphaseDecimator

+ type RationalResampler struct

+ func NewRationalResampler(sink chan float64, interpFactor, decimFactor int) RationalResampler

+ type SX1255Modem struct

+ func NewSX1255Modem(rxFrequency uint32, txFrequency uint32, modemCfg *ini.Section) (*SX1255Modem, error)

+ func (m *SX1255Modem) Close() error

+ func (m *SX1255Modem) Reset() error

+ func (m *SX1255Modem) Start() error

+ func (m *SX1255Modem) StartDecoding(sink func(typ uint16, softBits []SoftBit))

+ func (m *SX1255Modem) TransmitPacket(p Packet) error

+ func (m *SX1255Modem) TransmitVoiceStream(sd StreamDatagram) error

+ type TXPulseShaper struct

+ func NewTXPulseShaper(taps []float64, sps int) *TXPulseShaper

+ func (p *TXPulseShaper) Process(symbols []Symbol) []float64

+ func (p *TXPulseShaper) Reset()

Feb 18, 2026

Changes in this version

+ const MagicACKN

+ const MagicCONN

+ const MagicDISC

+ const MagicLSTN

+ const MagicLen

+ const MagicM17Packet

+ const MagicM17Stream

+ const MagicNACK

+ const MagicPING

+ const MagicPONG

+ var CallsignRegex = regexp.MustCompile(...)

+ type InetClient struct

+ EncodedName *EncodedCallsign

+ Module byte

+ Name string

+ Port uint

+ Server string

+ func NewInetClient(name string, server string, port uint, module string, callsign string, ...) (*InetClient, error)

+ func (r *InetClient) Close() error

+ func (r *InetClient) Connect() error

+ func (r *InetClient) SendPacket(p Packet) error

+ func (r *InetClient) SendStream(sd StreamDatagram) error

Feb 1, 2026

Changes in this version

+ type DashboardLogger struct

+ func NewDashboardLogger(l *slog.Logger) *DashboardLogger

+ func (l *DashboardLogger) Log(logType string, logSubtype string, addlArgs ...any)

+ func (l *DashboardLogger) LogFrame(lsf *LSF, logType string, logSubtype string, addlArgs ...any)

+ func (l *DashboardLogger) LogGNSS(lsf *LSF, logType string)

Dec 20, 2025

Changes in this version

type Packet

+ func (p *Packet) CalcCRC() uint16

Dec 3, 2025

Changes in this version

+ type CC1200ModemV2 struct

+ func NewCC1200ModemV2(rxFrequency uint32, txFrequency uint32, power int8, frequencyCorr int16, ...) (*CC1200ModemV2, error)

+ func (m *CC1200ModemV2) Close() error

+ func (m *CC1200ModemV2) Reset() error

+ func (m *CC1200ModemV2) Start() error

+ func (m *CC1200ModemV2) StartDecoding(sink func(typ uint16, softBits []SoftBit))

+ func (m *CC1200ModemV2) TransmitPacket(p Packet) error

+ func (m *CC1200ModemV2) TransmitVoiceStream(sd StreamDatagram) error

Nov 14, 2025

Changes in this version

type Relay

+ EncodedName *EncodedCallsign

Nov 11, 2025

Changes in this version

+ const FrameTime

+ const FramesPerSecond

type LSF

+ func (l *LSF) SetECD(gatewayCall EncodedCallsign)

Nov 5, 2025

Changes in this version

+ type Converter struct

+ func NewConverter[T Number, U Number](sink chan T) Converter[T, U]

+ type IIRFilter struct

+ func NewIIRFilter(sink chan float64, b, a []float64) (IIRFilter, error)

+ func (t *IIRFilter) Source() chan float64

Nov 2, 2025

Changes in this version

+ const BytesPerFrame

Oct 16, 2025

Changes in this version

+ var BERTSyncBytes = []byte

+ var EOTMarkerBytes = []byte

+ var ErrMMDVMReadTimeout = errors.New("read timeout")

+ var ErrModemNAK = errors.New("modem returned NAK")

+ var ErrUnsupportedModemProtocol = errors.New("unsupported MMDVM protocol version")

+ var LSFSyncBytes = []byte

+ var PacketSyncBytes = []byte

+ var StreamSyncBytes = []byte

type CC1200Modem

+ func (m *CC1200Modem) StartDecoding(sink func(typ uint16, softBits []SoftBit))

type Decoder

+ func (d *Decoder) DecodeFrame(typ uint16, softBits []SoftBit)

type DummyModem

+ func (m *DummyModem) StartDecoding(sink func(typ uint16, softBits []SoftBit))

+ type MMDVMConfig struct

+ type MMDVMModem struct

+ func NewMMDVMModem(rxFrequency uint32, txFrequency uint32, power float32, frequencyCorr int16, ...) (*MMDVMModem, error)

+ func (m *MMDVMModem) Close() error

+ func (m *MMDVMModem) Reset() error

+ func (m *MMDVMModem) Start() error

+ func (m *MMDVMModem) StartDecoding(sink func(typ uint16, softBits []SoftBit))

+ func (m *MMDVMModem) TransmitPacket(p Packet) error

+ func (m *MMDVMModem) TransmitVoiceStream(sd StreamDatagram) error

type Modem

+ Close func() error

+ StartDecoding func(sink func(typ uint16, softBits []SoftBit))

+ type PayloadBits [BitsPerPayload]Bit

+ func NewPayloadBits(bs []Bit) *PayloadBits

type SoftBit

+ func (b SoftBit) String() string

type Symbol

+ func AppendSyncwordSymbols(out []Symbol, syncword uint16) []Symbol

Aug 15, 2025

Changes in this version

type GNSS

+ Radius byte

+ ValidBearingSpeed bool

+ ValidLatLon bool

+ ValidRadius bool

Aug 8, 2025

Changes in this version

+ var EOTMarkerSymbols = []float64

Aug 5, 2025

Changes in this version

type StreamDatagram

+ func NewStreamDatagramFromBytes(buffer []byte) (StreamDatagram, error)

+ func (sd StreamDatagram) String() string

+ func (sd StreamDatagram) ToBytes() []byte

Aug 4, 2025

Changes in this version

type GNSS

+ Bearing uint16

+ Speed byte

Aug 3, 2025

Changes in this version

+ type ECD struct

+ Callsign1 []byte

+ Callsign2 []byte

+ func NewECDFromMeta(meta [14]byte) ECD

+ func (e ECD) String() string

+ type GNSS struct

+ BearingDegrees uint16

+ DataSource byte

+ SpeedMPH byte

+ StationType byte

+ func NewGNSS(dataSource, stationType byte, latitude, longitude float32, ...) GNSS

+ func NewGNSSFromMeta(meta [14]byte) (GNSS, error)

+ func (g *GNSS) Altitude() int

+ func (g *GNSS) Latitude() float32

+ func (g *GNSS) Longitude() float32

+ func (g *GNSS) ValidAltitude() bool

+ func (g *GNSS) ValidSpeedBearing() bool

+ func (g GNSS) String() string

type LSF

+ func (l *LSF) DataType() LSFDataType

+ func (l *LSF) ECD() *ECD

+ func (l *LSF) EncryptionSubtype() byte

+ func (l *LSF) EncryptionType() LSFEncryptionType

+ func (l *LSF) GNSS() *GNSS

type LSFDataType

+ func (t LSFDataType) String() string

type LSFEncryptionType

+ func (t LSFEncryptionType) String() string

type LSFType

+ func (t LSFType) String() string

Jul 30, 2025

Changes in this version

type Relay

+ Name string

Jul 27, 2025

Changes in this version

+ type Host struct

+ Name string

+ Port uint

+ Server string

+ type Hostfile struct

+ Hosts map[string]Host

+ func NewHostfile(name string) (*Hostfile, error)

Jul 24, 2025

Changes in this version

+ const BERTSync

+ const BitsPerPayload

+ const BitsPerSymbol

+ const CRCLen

+ const ConvolutionK

+ const ConvolutionStates

+ const DestinationAll

+ const EOTMarker

+ const EncodedCallsignLen

+ const EncodedDestinationAll

+ const ErrorDetectionFailed

+ const LSDLen

+ const LSFFinalBit

+ const LSFLen

+ const LSFSync

+ const MaxCallsignLen

+ const MaxEncodedCallsign

+ const PacketModeFinalBit

+ const PacketSync

+ const RXSymbolScalingCoeff

+ const SoftErasure

+ const SoftOne

+ const SoftThreshold

+ const SoftZero

+ const SpecialEncodedRange

+ const StreamSync

+ const SymbolsPerFrame

+ const SymbolsPerPayload

+ const SymbolsPerSyncword

+ const TXSymbolScalingCoeff

+ var BERTSyncSymbols = []float64

+ var EOTSymbols = []Symbol

+ var EncodedDestinationAllBytes = [6]byte

+ var ExtLSFSyncSymbols = append(LSFPreambleSymbols, LSFSyncSymbols)

+ var LSFPreambleSymbols = []float64

+ var LSFPuncturePattern = PuncturePattern

+ var LSFSyncSymbols = []float64

+ var PacketPuncturePattern = PuncturePattern

+ var PacketSyncSymbols = []float64

+ var StreamPuncturePattern = PuncturePattern

+ var StreamSyncSymbols = []float64

+ var SymbolList = []Symbol

+ var SymbolMap = []Symbol

+ func CRC(in []byte) uint16

+ func CalculateHammingDistance(a, b uint32) int

+ func CalculateSyndrome(codeword uint32) uint16

+ func ConvolutionalEncode(in []byte, puncturePattern PuncturePattern, finalBit byte) (*[]Bit, error)

+ func ConvolutionalEncodeStream(lichBits []Bit, sd StreamDatagram) (*[]Bit, error)

+ func DecodeCallsign(encoded []byte) (string, error)

+ func DecodeLICH(inp []SoftBit) []byte

+ func Encode24(data uint16) uint32

+ func EncodeCallsign(callsign string) (*[6]byte, error)

+ func EncodeLICH(inp []uint8) []byte

+ func EuclNorm(s1, s2 []Symbol, n int) float64

+ func GetErrorCorrectionCapability() int

+ func GetMinimumDistance() int

+ func HardDecode24(codeword uint32) (uint16, error)

+ func IntToSoft(out []SoftBit, value uint16, size uint8)

+ func IsValidCodeword(codeword uint32) bool

+ func NormalizeCallsignModule(callsign string) string

+ func SoftCalcChecksum(out, value []SoftBit)

+ func SoftDecode24(codeword [24]SoftBit) uint16

+ func SoftDetectErrors(codeword []SoftBit) uint32

+ func SoftPopCount(in []uint16, size uint8) uint32

+ func SoftToInt(in []SoftBit, size uint8) uint16

+ func SoftXOR(out, a, b []SoftBit, size uint8)

+ type Bit bool

+ func (b *Bit) Byte() byte

+ func (b *Bit) Set(by byte)

+ type Bits [BitsPerPayload]Bit

+ func InterleaveBits(in *Bits) *Bits

+ func NewBits(bs *[]Bit) *Bits

+ func RandomizeBits(bits *Bits) *Bits

+ type CC1200Modem struct

+ func NewCC1200Modem(port string, nRSTPin int, paEnablePin int, boot0Pin int, baudRate int) (*CC1200Modem, error)

+ func (m *CC1200Modem) Close() error

+ func (m *CC1200Modem) Read(buf []byte) (n int, err error)

+ func (m *CC1200Modem) Reset() error

+ func (m *CC1200Modem) SetAFC(afc bool) error

+ func (m *CC1200Modem) SetFreqCorrection(corr int16) error

+ func (m *CC1200Modem) SetRXFreq(freq uint32) error

+ func (m *CC1200Modem) SetTXFreq(freq uint32) error

+ func (m *CC1200Modem) SetTXPower(dbm float32) error

+ func (m *CC1200Modem) Start() error

+ func (m *CC1200Modem) TransmitPacket(p Packet) error

+ func (m *CC1200Modem) TransmitVoiceStream(sd StreamDatagram) error

+ type DCFilter struct

+ func NewDCFilter(sink chan int8, averageN int) (DCFilter, error)

+ type Decoder struct

+ func NewDecoder(dashLog *slog.Logger) *Decoder

+ func (d *Decoder) DecodeSymbols(in io.Reader, ...) error

+ type Downsampler struct

+ func NewDownsampler[T any](sink chan T, factor int, offset int) (Downsampler[T], error)

+ type DummyModem struct

+ In io.ReadCloser

+ Out io.WriteCloser

+ func (m *DummyModem) Close() error

+ func (m *DummyModem) Read(p []byte) (n int, err error)

+ func (m *DummyModem) Reset() error

+ func (m *DummyModem) SetAFC(afc bool) error

+ func (m *DummyModem) SetFreqCorrection(corr int16) error

+ func (m *DummyModem) SetRXFreq(freq uint32) error

+ func (m *DummyModem) SetTXFreq(freq uint32) error

+ func (m *DummyModem) SetTXPower(dbm float32) error

+ func (m *DummyModem) Start() error

+ func (m *DummyModem) TransmitPacket(p Packet) error

+ func (m *DummyModem) TransmitVoiceStream(sd StreamDatagram) error

+ func (m *DummyModem) Write(buf []byte) (n int, err error)

+ type EncodedCallsign [EncodedCallsignLen]byte

+ func (e EncodedCallsign) Callsign() string

+ type LSF struct

+ CRC [CRCLen]byte

+ Dst EncodedCallsign

+ Meta [metaLen]byte

+ Src EncodedCallsign

+ Type [typeLen]byte

+ func NewEmptyLSF() LSF

+ func NewLSF(destCall, sourceCall string, t LSFType, dt LSFDataType, can byte) (LSF, error)

+ func NewLSFFromBytes(buf []byte) LSF

+ func NewLSFFromLSD(lsd []byte) LSF

+ func (l *LSF) CAN() byte

+ func (l *LSF) CalcCRC() uint16

+ func (l *LSF) CheckCRC() bool

+ func (l *LSF) LSFType() LSFType

+ func (l *LSF) ToBytes() []byte

+ func (l *LSF) ToLSDBytes() []byte

+ func (l LSF) String() string

+ type LSFDataType byte

+ const LSFDataTypeData

+ const LSFDataTypeReserved

+ const LSFDataTypeVoice

+ const LSFDataTypeVoiceData

+ type LSFEncryptionSubtype byte

+ type LSFEncryptionType byte

+ const LSFEncryptionTypeAES

+ const LSFEncryptionTypeNone

+ const LSFEncryptionTypeOther

+ const LSFEncryptionTypeScrambler

+ type LSFType byte

+ const LSFTypePacket

+ const LSFTypeStream

+ type Line interface

+ Close func() error

+ SetValue func(value int) error

+ type Modem interface

+ Reset func() error

+ SetAFC func(afc bool) error

+ SetFreqCorrection func(corr int16) error

+ SetRXFreq func(freq uint32) error

+ SetTXFreq func(freq uint32) error

+ SetTXPower func(dbm float32) error

+ Start func() error

+ TransmitPacket func(Packet) error

+ TransmitVoiceStream func(StreamDatagram) error

+ type Number interface

+ type Packet struct

+ CRC uint16

+ LSF LSF

+ Payload []byte

+ Type PacketType

+ func NewPacket(dst, src string, t PacketType, data []byte) (*Packet, error)

+ func NewPacketFromBytes(buf []byte) Packet

+ func (p *Packet) CheckCRC() bool

+ func (p *Packet) Encode() ([]Symbol, error)

+ func (p *Packet) PayloadBytes() []byte

+ func (p *Packet) ToBytes() []byte

+ func (p Packet) String() string

+ type PacketType rune

+ const PacketType6LoWPAN

+ const PacketTypeAPRS

+ const PacketTypeAX25

+ const PacketTypeIPv4

+ const PacketTypeRAW

+ const PacketTypeSMS

+ const PacketTypeWinlink

+ type Preamble byte

+ type PuncturePattern []Bit

+ type Relay struct

+ Callsign string

+ EncodedCallsign [6]byte

+ Module byte

+ Port uint

+ Server string

+ func NewRelay(server string, port uint, module string, callsign string, dashLog *slog.Logger, ...) (*Relay, error)

+ func (c *Relay) Close() error

+ func (c *Relay) Connect() error

+ func (c *Relay) Handle()

+ func (c *Relay) SendPacket(p Packet) error

+ func (c *Relay) SendStream(lsf LSF, sid uint16, fn uint16, payload []byte) error

+ type SampleToSymbol struct

+ func NewSampleToSymbol(sink chan int8, rrcTaps []float32, scalingCoeff float32) SampleToSymbol

+ func (t *SampleToSymbol) Source() chan float32

+ type Scaler struct

+ func NewScaler[T Number](sink chan T, factor T) Scaler[T]

+ type SoftBit uint16

+ func DeinterleaveSoftBits(softBits []SoftBit) []SoftBit

+ func DerandomizeSoftBits(softBits []SoftBit) []SoftBit

+ func SoftBitXOR(a, b SoftBit) SoftBit

+ type StreamDatagram struct

+ FrameNumber uint16

+ LSF LSF

+ LastFrame bool

+ Payload [16]byte

+ StreamID uint16

+ func NewStreamDatagram(encodedCallsign [6]byte, buffer []byte) (StreamDatagram, error)

+ type Symbol float32

+ func AppendBits(out []Symbol, data *Bits) []Symbol

+ func AppendEOT(out []Symbol) []Symbol

+ func AppendPreamble(out []Symbol, typ Preamble) []Symbol

+ func AppendSyncword(out []Symbol, syncword uint16) []Symbol

+ type SymbolToSample struct

+ func NewSymbolToSample(rrcTaps []float32, scalingCoeff float32, phaseInvert bool, ...) SymbolToSample

+ func (t *SymbolToSample) Transform(symbols []Symbol) []byte

+ type Transform struct

+ func NewTransform[I any, O any](sink chan I, transform func(I) []O, sourceSize int) Transform[I, O]

+ func (t *Transform[I, O]) Source() chan O

+ type ViterbiDecoder struct

+ func (v *ViterbiDecoder) DecodePunctured(puncturedSoftBits []SoftBit, puncturePattern PuncturePattern) ([]byte, float64)

+ func (v *ViterbiDecoder) Init(l int)