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.
Created by: Moe Wheatley (AE4JY) and Howard Teller (KH6TY) in 2003
Baud rate : 62.5
Speed : 74 wpm in capital letters and 102 wpm in small letters (average)
Bandwidth : about 160 Hz,
Drift tolerance : 120 Hz/min in BPSK63 and 40 Hz/min in QPSK63 (depending on level)
Lowest S/N : - 7 dB for BPSK63 and - 8 dB for QPSK63
Note: for the remainder, the characteristics are identical to the ones of BPSK31/QPSK31
-Not used as much as PSK31 but you do find some traffic
+Handles multipathing etc slightly better than PSK31 which can cause a better copy at times
+Pretty fast speeds
-Signal to noise ratio is fairly good but not as good as PSK31 about 4 DB difference.
+ This mode is good for contesting but not too much extreme dx
- Ok for ragchewing if you can type fast
+Few clubs promote this mode
+Few contest are held each year in this mode or mixture of two modes.
+Fairly good amount contacts can be made on this mode in contests
FFT Screen Shot
Mode Audio Sample
VIDEO OF AN ACTUAL BPSK63 QSO HERE