Since a few weeks there is an outdoor antenna placed to improve the DAB + reception here in Merksplas. My DAB + tuner is in the basement, there is a window, but there was a problem receiving DAB + channels. The antenna had to be placed near the window, and even then, only VRT-channels were received, only when the weather was good. In case of rain, fog, … fell regularly the receipt away.
The new antenna is a Wittenberg WB301. Between the antenna and the tuner there is some 15m 50Ohm RF-cable. Now the reception of the VRT channels is max. Also other Belgian channels as well as Dutch channels have a good or very good reception.
Although this is called a unidirectional antenna, it turns out that by turning the antenna to the broadcast antenna, the receiving level improves.