For those who want to sit down, for example, for fear of damage, no external antenna for the DAB + reception on the roof, the glass antenna is a viable alternative. I run on this one Alpine EZI-DAB and am of the opinion that the components are well coordinated. The local radio station for the reception area here at Lake Constance (Southwest Broadcasting) are easily receivable without interruptions. This also applies to the neighboring station of Switzerland (SRF and private channels) and with restrictions on the stations of the Bavarian Runfunks. Only when programs from central Switzerland leads to disruptions that would probably not occur when you use an outdoor antenna.