PSK Hell Modes
Createad by : Nino Porcino (IZ8BLY) and Murray Greenman (ZL1BPU)
Description :
Baud rate : 105 or 245 (only 245 bauds on Multipsk)
Matrix : for PSK HELL 105 bauds…height: 6 pixels and width: 7 pixels
for PSK HELL 245 bauds…height: 7 pixels and width: 14 pixels
Speed : 25 wpm
Modulation : DBPSK
Receive mode : indifferent (USB or LSB)
Character set : all ASCII printable characters except small letters, carriage return (+ line feed) and error correction character. The used font (FeldHell) is derived from the font of G3PLX (Peter Martinez),
Shape of pulse : raised cosine profile
Bandwidth : about 170 Hz for 105 bauds and 400 Hz for 245 bauds,
Synchronization : no need, each column is displayed vertically 2 times (but transmitted once)
Pmean/Ppeak : 0.62
Lowest S/N : - 10 dB for 245 bauds mode
