Nagra CW size

[alexednov]

Hello,

A provider in Brazil B3T (caid 1802, provid 000000,003811,003911) is changing the size of the cw size

it seems a provider in brazil (caid 1802, nagra) is changing the size of the cw keys, the hd channels only works with the option "skip cw checksum test" from OScam

It is possible to send a fixed CW without black screen?

 

[rtznfrtz]

There are some versions of OScam around with 48 and 64 bit checksum option - maybe you wanna try one of those to check your assumptions

 

[alexednov]

There are some versions of OScam around with 48 and 64 bit checksum option - maybe you wanna try one of those to check your assumptions

There is a special oscam for 64bit cw? Enabling the "skip cw checksum test" works, but the client must enable this option too.

 

[rtznfrtz]

.. and it opens the door for any kind of transmission errors (ber)

 

[Spectre]

.. and it opens the door for any kind of transmission errors (ber)

Checksum doesn't error correct. I would have thought something like Reed-Solomon would be used for actual transmission FEC.

 

[rtznfrtz]

do not know .. but didn't say it's correcting them ... enabled "Drop CW's with wrong checksum" should prevent from using them