ac4msite
 
PSK10 mode is designed to assure communications with weak ratio Signal-to-Noise ratios down to -17.5 dB with less than 2% errors. The speed is 18 wpm. This mode is very sensitive to the ionospheric Doppler modulation.

Created by: Patrick Lindecker F6CTE (2001)
Description :
Baud rate : 10
Speed : 18 wpm
Modulation : DBPSK
Reception mode : indifferent (LSB or USB)
Character set : 56 "Varicode" characters " A..Z 0..9 <CR> <ESPACE> . , " : - = + ? $ ' ( ) ! / @ & # * with an error reset character and an idle character (displayed by ">").
Small characters are transformed in capital characters and special characters as
" " are transformed in standard capital (in the example above: " E ").
Shape of pulse : rectangular but the transition between 2 successive different bits is done by a decreasing sine then by an increasing sine (each one during a quarter of period)
Bandwidth : about 40 Hz
Demodulation : coherent,
Synchronization : automatic using the signal
Correction code : no
Convolution code : no
Interleaving : no
Repetition : no
Drift tolerance : 40 Hz/mn (depending on signal-to-noise ratio)
Pmean/Ppeak : 0.86
Lowest S/N : -17.5 dB

+Very sensitive mode
-Very sensitive to ionspheric changes
- Not used much
-Fairly slow compared to PSK31
+does not take much space up




Mode Menu
PSK10
Mode Audio Sample
FFT Window Screenshot
PSK10