Which diplexer - 5-2050 or 40-2150?

[The Big Bad]

Anyone know which diplexer would be more appropriate - one that indicates that it handles 5 to 2050 or one that hands 40 to 2150 (I think it's Hz, but hopefully you guys will know what I'm talking about).

[boba]

Either will work for DISH or Directv and OTA broadcasts