Choosing the right radar

[LimaBavo]

Sorry Chuck, forgot to ask, now that you have me thinking about the bigger array...

What would I gain over the RD424HD if I went with the entry level RA1048HD open array? My dealer has both in stock and he wants to deal on the open array.

If there's a big big advantage to the extra money, I'd probably go with it since that moves me to a 4' antenna....??? Otherwise the RD424HD seems appropriate.

Thanks!!