Having the same issue here. I built a satellite for my first ever trip to Duna and fit it with every sciencey bit and bob I could find. Have a max upgraded tracking center and 6 antennas just for some overkill in addition to the dish which I didn't know would transmit. Two major issues with the mod are like tomf said, the dish appears to transmit data once and then never transmits anything ever again. Every time I do an experiment and try to transmit the box disappears but no transmit dialogue or sounds pop up. The science is never transmitted and the experiment acts like it was never collected in the first place. Next is when I do transmit science it automatically deploys this massive dish which makes it impossible to keep the craft perfectly straight while under power. What if I want to collect and transmit readings on the way to Duna?
Two suggestions. Fix the dish so that it transmits data or remove its ability to transmit so that other antennas can do that. I really really really hate that it auto deploys and I have a satellite worth 200k in Duna orbit that is doing absolutely nothing. It's extremely frustrating.
*EDIT* Wanted to add that other than this issue, your mod is one I would consider a requirement to play Kerbal and really hope you are absorbed into the stock game at some point. Your mod, the surface experiments mod, and the solar experiments mod are the best science ones out there.