I'll be back in KAB for most of October. Mostly focusing on the barra though. Had a good session last year, and they've actually had rain in the last few months so hopefully that'll move some fish around in the rivers.
If you're staying in the "Fishing Club" caravan park area, the Groper Bar has a Telstra repeater that you can get signal no problems with. But anywhere else yeah you'll need a satphone. But it's a good excuse that you have to go to the bar and spend a long time there googling something