JS8 Submode namespace implementation. More...

Classes
struct	error

Functions
QString	name (int const submode)
	Get the name of the submode.
unsigned int	bandwidth (int const submode)
	Get the bandwidth of the submode.
Costas::Type	costas (int const submode)
	Get the Costas array type of the submode.
unsigned int	samplesPerPeriod (int const submode)
	Get the number of samples per period of the submode.
unsigned int	samplesForSymbols (int const submode)
	Get the number of samples for symbols of the submode.
unsigned int	samplesNeeded (int const submode)
	Get the number of samples needed for the submode.
unsigned int	period (int const submode)
	Get the period of the submode.
int	rxSNRThreshold (int const submode)
	Get the receive SNR threshold of the submode.
int	rxThreshold (int const submode)
	Get the receive threshold of the submode.
unsigned int	startDelayMS (int const submode)
	Get the start delay in milliseconds of the submode.
unsigned int	samplesForOneSymbol (int const submode)
	Get the number of samples for one symbol of the submode.
double	toneSpacing (int const submode)
	Get the tone spacing of the submode.
double	dataDuration (int const submode)
	Get the data duration of the submode.
double	txDuration (int const submode)
	Get the transmit duration of the submode.
int	computeCycleForDecode (int const submode, int const k)
	Compute the cycle for decode.
int	computeAltCycleForDecode (int const submode, int const k, int const offsetFrames)
	Compute the alternate cycle for decode.
double	computeRatio (int const submode, double const period)
	Compute the ratio of data duration to period.

Detailed Description

JS8 Submode namespace implementation.

Function Documentation

◆ bandwidth()

unsigned int JS8::Submode::bandwidth ( int const submode )

Get the bandwidth of the submode.

Parameters

submode

Returns: unsigned int

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◆ computeAltCycleForDecode()

int JS8::Submode::computeAltCycleForDecode	(	int const	submode,
		int const	k,
		int const	offsetFrames )

Compute the alternate cycle for decode.

Parameters

submode
k
offsetFrames

Returns: int

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◆ computeCycleForDecode()

int JS8::Submode::computeCycleForDecode	(	int const	submode,
		int const	k )

Compute the cycle for decode.

Parameters

submode
k

Returns: int

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◆ computeRatio()

double JS8::Submode::computeRatio	(	int const	submode,
		double const	period )

Compute the ratio of data duration to period.

Parameters

submode
period

Returns: double

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◆ costas()

Costas::Type JS8::Submode::costas ( int const submode )

Get the Costas array type of the submode.

Parameters

submode

Returns: Costas::Type

◆ dataDuration()

double JS8::Submode::dataDuration ( int const submode )

Get the data duration of the submode.

Parameters

submode

Returns: double

Duration in seconds that it takes to transmit the symbols.

This is samplesForSymbols / 12000.

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◆ name()

QString JS8::Submode::name ( int const submode )

Get the name of the submode.

Parameters

submode

Returns: QString

Name of the submode, in all uppercase letters.

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◆ period()

unsigned int JS8::Submode::period ( int const submode )

Get the period of the submode.

Parameters

submode

Returns: unsigned int

How long from one transmission start to the next transmission start, in seconds.

This is the usual number a typical users knows: 30 s for SLOW, 6 s for JS8 40 (formerly "Turbo").

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◆ rxSNRThreshold()

int JS8::Submode::rxSNRThreshold ( int const submode )

Get the receive SNR threshold of the submode.

Parameters

submode

Returns: int

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◆ rxThreshold()

int JS8::Submode::rxThreshold ( int const submode )

Get the receive threshold of the submode.

Parameters

submode

Returns: int

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◆ samplesForOneSymbol()

unsigned int JS8::Submode::samplesForOneSymbol ( int const submode )

Get the number of samples for one symbol of the submode.

Parameters

submode

Returns: unsigned int

How many audio samples (at 12000 samples per second) it takes to transfer one symbol.

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◆ samplesForSymbols()

unsigned int JS8::Submode::samplesForSymbols ( int const submode )

Get the number of samples for symbols of the submode.

Parameters

submode

Returns: unsigned int

How many audio samples we use to transmit the symbols of one period.

As there are JS8_NUM_SYMBOLS = 79 symbols in a period, this is 79 * samplesForOneSymol.

◆ samplesNeeded()

unsigned int JS8::Submode::samplesNeeded ( int const submode )

Get the number of samples needed for the submode.

Parameters

submode

Returns: unsigned int

The number of samples needed to capture the entire TX duration, including the initial start delay, plus another 500 ms.

◆ samplesPerPeriod()

unsigned int JS8::Submode::samplesPerPeriod ( int const submode )

Get the number of samples per period of the submode.

Parameters

submode

Returns: unsigned int

How many audio samples at 12000 samples per second are needed for one period in this mode.

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◆ startDelayMS()

unsigned int JS8::Submode::startDelayMS ( int const submode )

Get the start delay in milliseconds of the submode.

Parameters

submode

Returns: unsigned int

How long to wait after tx start before actually sending data, in milliseconds.

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◆ toneSpacing()

double JS8::Submode::toneSpacing ( int const submode )

Get the tone spacing of the submode.

Parameters

submode

Returns: double

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◆ txDuration()

double JS8::Submode::txDuration ( int const submode )

Get the transmit duration of the submode.

Parameters

submode

Returns: double

Actual duration of the transmission, in seconds.

This is samplesForSymbols / 12000 + startDelayMS / 1000

Classes

Functions

Detailed Description

Function Documentation

◆ bandwidth()

◆ computeAltCycleForDecode()

◆ computeCycleForDecode()

◆ computeRatio()

◆ costas()

◆ dataDuration()

◆ name()

◆ period()

◆ rxSNRThreshold()

◆ rxThreshold()

◆ samplesForOneSymbol()

◆ samplesForSymbols()

◆ samplesNeeded()

◆ samplesPerPeriod()

◆ startDelayMS()

◆ toneSpacing()

◆ txDuration()