H21D4:
- Externally mounted and therefore replaceable LNB (about 50, - EUR).
- Some centimeters taller, but hardly visible.
- Screw housing parts.
- A pair of tens expensive.
H30D4:
- Sealed and thus not replaceable LNB.
- Some centimeters shorter, but hardly visible.
- Bonded housing parts.
- A pair of tens cheaper.
Because of the lower price I decided 2 years ago for H30D4. Unfortunately, the LNB has however barely survived the warranty period. Since I prefer the compact design of these flat antennas, I decided again for a Selfsat. This time, however, for the more expensive and better processed H21D4 because the LNB is interchangeably herein.
