limited use 2 2

Use:
Distribution from the tone of the PC or the picture and sound from the digital receiver (analog output, RCA, DVD quality)
about five meters distance, into two rooms by a respective simple (non-structural) brick wall on small tube TV devices.
Use of two identical sets, ie, two receiver both receive the same signal.

This results in a simultaneous playback of picture and sound throughout the apartment,
without a time delay (echo / reverb) through the different sound sources is created.

am of five wireless networks and microwave surround (right next to the receiver, in the neighboring apartment)

So I think the image transmission is rarely complete without interference or the orientation
must be constantly adjusted ... that's more cumbersome to annoying.

Sound quality is OK - sufficient and poorly adjustable to achieve the image quality due to "best" image quality

Disturbances of sound and images by microwave and approaching planes are no longer perceptible.
The overall image quality is sometimes worse than the previous 2.4 GHz systems in my specific environment
the image is often quite grainy and is sometimes decorated by a continuous broad shadow of a "modulation strip".

For my primary use of undisturbed sound transmission as far as applicable. (****)
In the image transfer, however there are clear weaknesses at my location. (**)