PSK-AM is a very narrow-band and reliable amateur mode developed by F6CTE. The aim of this experimental slow mode is to allow chat communication between hams.
|
Parameter |
Value |
|
Frequency range |
HF |
|
Operation modes |
Simplex |
|
Modulation |
DBPSK |
|
Symbol rate |
10, 31.25 and 50 Bd |
|
Receiver settings |
DATA, CW, LSB or USB |
|
Input format(s) |
AF, IF |
|
Additional Info |
14.075 MHz |
PSK-AM is similar to PSK-31, but uses its own fixed length 8 bit alphabet with a 5:3 ratio. Each character is repeated 5 positions later. This diversity in time allows the correction of an invalid character.
Bitstream:
|
D(x) |
R(x-2) |
D(x+1) |
R(x-1) |
D(x+2) |
R(x) |
D(x+3) |
D(x): character
R(x): repeated character