BPSK63 and QPSK63 modes derive from BPSK31/QPSK31 but they are twice faster. The minimum ratio Signal-to-Noise ratio is about - 7 / -8 dB. The PSK63F is similar to PSK63 but with a convolutional encoding.
The PSK63F mode has a same speed (62.5 bauds) as PSK63 but with a convolutional encoding. It is a powerful mode with the presence of noise. The minimum ratio Signal-to-Noise ratio is about - 12 dB.
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
+FEC helps for a better copy compared to PSK63
-Not used very much
+Even with FEC it is still faster than PSK31
The PSK63F mode has a same speed (62.5 bauds) as PSK63 but with a convolutional encoding. It is a powerful mode with the presence of noise. The minimum ratio Signal-to-Noise ratio is about - 12 dB.
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
+FEC helps for a better copy compared to PSK63
-Not used very much
+Even with FEC it is still faster than PSK31
Mode Menu
PSK63F
Mode Audio Sample
FFT Window Screenshot
VIDEO OF AN ACTUAL PSK63F QSO HERE