I have already installed 3 Selfsat flat antennas in our Reihenhausanlage. The antennas are really small, inconspicuous and powerful. That's why I get 3 more requests from co-owners and also this wish also these antennas. They are available with replaceable LNB's (type H21-Dx) and fixed LNB's (type H30-Dx) each as a Single, Twin or Quad. A further difference is the mounting kit. The H21 has additional parts for window mounting and also a 5 cm longer the mainstay. This to me is crucial, since the antennas need to be rotated to the orientation by nearly 85 ° on the support (lateral wall mounting to the east). This is not possible with the type H30 - I guess there go max. 60 °. Since we need an angle of about 85 ° for the fastening, I have therefore decided to use one antenna type H21-D4 and 2 of the type H21-D2. On 28.03.2011 ordered through Amazon at hm-sat.de and delivered on the 29/03/2011 via DHL - Super. What was not great - the 2 H21-D2 contained the mounting kit of the H30-D, supplemented by two window angle and a sticker on the H30 Manual "This manual is identical with H30Dx H21Dx manual". Lie - yet neither Manual mounting kit are identical. Instead of 15 pages there are only 8 and use the window angle is not mentioned. The H21-parts list shows 18 and the other only 12 parts. According to the supplier hm-sat this is already packed in Korea is such a correction is not possible in Germany. So do not touch type H21-D2, if you need the longer the mainstay. All other I can wholeheartedly recommend. The price difference between the H21-H21-D2 and D4 also is only 9 Euro, these are two LNB in reserve. Therefore, 3 stars for the H21-D2, all other would get. 5 My experience after 5 years almost faultless function: Due to the vertical orientation (elevation) in direct angle to the satellite, the slope is flatter than in parabolic antennas with remote LNB. This may still snow on the antenna are disabled and the reception - especially with wet snow.
