If the signal is strong enough, however, or amplified, then the distributor plays with good and allows easy look that different channels on both devices, or the look of the one and recording the other. This, however, both channels must be broadcast in the same polarization.
To avoid trouble, Hama writes on the package that only one device can be used. But this is basically an unnecessary limitation if one ensures a sufficiently strong signal ...
So: no false modesty ... and absolute buy recommendation!
