Which do you think is best. Myself, I'm partial to the good old DC 30.

Dc30

I like the 50. But never used a 30.

I have never used the 30 but I have 40 and 50 the 40 is better with the 220 I have had my 320 out trying to catch and couldn't pick up and pulled out the 220 and soon as it come on I knew where they were and the 50 just goes with the 320 it tracks good but the alpha is by far the best in my eyes I have all three system it just what system you have and what collars you have if I didn't have the alpha I would go just 320 and 50

The Astro 220 isn't intended to track DC50s. In fact, I didn't even know you could get a signal on a DC50 collar with an Astro 220.

Is the alpha system hard 2 operate I have a 320 box and 40 and 50 collars got them sold and thinkin bout gettin a alpha need some info on alpha thanks