. GENERAL SPECIFICATIONS
Created by : Nino Porcino IZ8BLY
Description :
Baud rate : 62.5
Speed : 42 wpm (average)
Modulation : DBPSK
Reception mode : indifferent (LSB or USB)
Character set : ASCII characters + almost all ANSI extended characters + an error reset character (« Varicode » characters)
Shape of pulse : raised cosine
Bandwidth : about 140 Hz,
Synchronization : automatic using the signal
Correction code : no
Convolution code : R(Rate)=1/2, K (Constraint length)=7 with Viterbi type decoder, both coder outputs being sent successively,
Drift tolerance : 1 Hz/sec (depending on signal-to-noise ratio)
Pmean/Ppeak : 0.79
Lowest S/N : - 12 dB in text and -10 dB in DIGISSTV
Interleaving : no
