CODAN-9001 is an asynchronous adaptive ARQ system. Data is modulated onto 16 tones, spaced at 112.5Hz intervals. The modulation rate of each tone is 75 Baud; the modulation type is differential quaternary phase-shift keying (differential PSK4A).
Parameter |
Value |
Frequency range |
HF |
Operation modes |
Half-duplex asynchronous adaptive ARQ |
Modulation |
Differential PSK4A; 16 tones |
Symbol rate |
16 x 75 Bd |
AFC |
In the range ±3100. automatic frequency control (AFC): +/-35 Hz |
Bandwidth |
1800 Hz |
Receiver settings |
DATA, CW, USB or LSB |
Input format(s) |
AF, IF |
Supported functions |
Output of demodulated multichannel symbols Derandomization of secure-mode Derandomization of unsecure-mode Arbitrary start values for derandomization of secure-modes Output of recognized start value in secure-mode Output of status information Output of recognized frame type Decoding of chat-messages into text Decoding of text-file transmissions into readable output Decoding of data- transmissions into hexadecimal output Decompress data Store Channel Data for analysis purposes Automatic recognition of secure and unsecure modes 7-bit-ASCII Alphabet used by CODAN-9102-Software Secure Interactive Packets |
Please enquire |
Chirp decoding |