Question about TechniSat Digitradio 143 V3

However, the "Digitradio 143 V3" device from TechniSat does not support DAB+ via cable, but rather via the integrated DAB+ receiver technology. It offers DAB+, DAB, FM radio and Internet radio, but no cable-based DAB+ function.

Excuse my ignorance, but if you can see the antenna socket on the back, then DAB+ via cable should be there by plugging in the OIKEN house antenna cable. Also I wanted to know if the wlan receiver for internet radio is only 2.4 GHz or also 5 GHz. In anticipation I thank you.