I have been researching them and I see that the DC50 is only compatible with the astro 320. If for any reason you wanted to upgrade to the alpha you would need a new combo. I could be wrong but that is what I am gathering. I am curious what the difference in the handhelds are. What it someone wanted the most recent handheld Alpha100 but only tracking capabilities of the T5? Garmin is making this much more complicated than it should be.
