Wavecom W74PC V8.7.0 - Manual (Page 155)

WAVECOM Decoder W74PC, W-PCI/e, W-CODE, W-CLOUD Manual V8.7.0 Transmission Modes
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Parameter Value
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
The picture below shows the CODAN-9001 Options dialog. The settings from the dialog are stored into
the Codan9001Options.xml file.
The CODAN-9001 data transmission system uses a variable randomization in secure- and secure-
interactive mode. The randomization vector can change between successive transmissions. The randomi-
zation value is shown in the status pane. In the two status-lines at the top of the decoding window the
frame type (DATA, ACK, IDLE) and some information about the decompressor (if used) are presented.
Possible derandomization options:
 No derandomization - no manipulation of the demodulated symbols; in this case it is not possi-
ble to recognize frame characteristics and decode into TEXT DATA. Because the decoder does not
recognize the frame length, with every synchronization the maximum frame length is used for
decoding.
 Automatic LSR initialization (Secure and Unsecure) - handles both the secure and unsecure
transmission cases; an unsecure transmission is automatically recognized. In the secure case the
decoder calculates the start value.