since many cable connections of the level a lot is too high, some devices do not like TV / receiver / tuner, is recommend the Hama distribution even if you need any division. Just as a damping / uncoupling directly at the antenna socket then plug the antenna cable to the terminal. Helps with SNR (signal-to-noise ratio) problems. but not if the signal is too weak, because it is not amp!
Of course, it also works very well as a distributor, which is sometimes an advantage, because some receivers, the antenna signal at off or de-energized state or not is not clean by the signal to the TV. or just to use 2 TV / receivers ... the actual determination of the distributor :)
Connections go hard and tight, indicating a good contact. (Positive)