ok, this works. I know because i got disconnected from my AP the 1t time i tried it :P
But, i can not get it to work with the right interface and having karma up at the same time.
I am using the mark4 with firmware 2.8.1.
tested it with alfa AWUS036H and with card that comes with the Pineapple.
what i do is: start the mark, connect to laptop via cable to get internet, use the network manager to share the connection with karma (this is my default setup have tested and works), connect the wifi card, go to the jammer module, select wlan1 and press start, the interface comes up (i see the led