CLOVER 2000 is an upgrade to CLOVER-II, a digital data protocol developed by Ray Petit and HAL Communications. Sometimes referred to as XCLOVER or 8 Tone CLOVER.
I/Q Raw Recording
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Audio Sample
CLOVER 2000 is an upgrade to CLOVER-II, a digital data protocol developed by Ray Petit and HAL Communications. Sometimes referred to as XCLOVER or 8 Tone CLOVER. CLOVER-2000 was introduced in 1999 by HAL Communications. CLOVER 2000 is 4 times as fast as CLOVER-II, and carries over all of the error correction algorithms from the original CLOVER-II.
CLOVER-2000 uses 8 250 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). wide tone-pulse subcarriers that are each offset from the base tone by 2ms, so that every 16ms all eight tone pulses transmit their cycle. CLOVER-2000 uses Phase (PSKPhase-Shift Keying) or Phase-Amplitude (Circular QAMQuadrature Amplitude Modulation) shift keying modulation. CLOVER-2000 occupies 2 kHzKiloHertz (kHz) 10^3 Hz of bandwidth in contrast to CLOVER-II's 500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). of bandwidth. The symbol rate for CLOVER-2000 is always 62.5 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. for all modes, double the symbol rate of CLOVER-II.
Mode
Description
Data Rate
ARQAutomatic Repeat reQuestAutomatic Repeat Query/FECForward Error Correction Support
