Not trying to start something here but the TT-15 will work with the Astro 320.... BUT you cannot track it with an Alpha at the same time and it will be track ONLY, no training options on the 320. I know this because I have them both and have used my TT-15s on my Astro 320 but AGAIN you CANNOT track them on an Alpha at the same time.
You basically pair it to the 320 like you would you DC-40 and it acts like an Astro collar then until you pair it back to an Alpha unit.
I heard that too, but only thought it was with the t5's, not the 15's,...good to know, gonna have to try that.
