SAT flush-mounted box: Modem does not work. Frequency filter?

There are end boxes and distribution boxes, and each of them comes with different attenuations. The system is not as simple as a satellite distribution or the distribution of a terrestrial rooftop antenna, because, as mentioned before, the neighboring houses are also connected in the chain. You can connect additional/different boxes, but they have to be the right ones. Therefore, this is usually done by the cable network operator itself.

Or you need a terminating resistor for a junction box. However, with the wrong cable and also with the correct one, it may be necessary to readjust the amplification at the distributor, but that has to be done by a cable technician.

OK. To avoid the problem with filters/attenuations etc., it would therefore be best not to use such a socket, but simply use an F-connector coupling[1] for the two cables. It is then just a cable extension. Does anyone happen to know if there is also something like this as a (flush-mounted) socket? Thanks.

Does anyone happen to know if there is such a thing as a (UP-) box?

Then best use a cable outlet box. It still looks best ;).

You have bought a SAT antenna socket and want to connect a cable modem to it. My question to the experts here is whether that can work at all. Don't you need a special socket for cable TV?

We bought a SAT flush-mounted box[1]. The coaxial cable comes from the basement one floor up, then into this box, where the cable modem is then plugged in from the outside.

With the article number, I can't do anything without the type of box. But if this box really is a Sat. socket, it filters out satellite IF signals from 950 MHz from the F-connection and not return channel signals. So that can't work either.

By the way, the ZZF was a DBP office, which has not existed for ages. The imprint of the federal eagle now only serves to impress laypeople.

If yes, what kind of box would we need?

In any case, a cable TV socket according to the specifications of your KNB:

[*]Future-proof with a larger cable TV bandwidth than the previously usual 862 MHz
[*]Possibly a four-hole modem socket with two F-connections for Unitymedia, so that a Horizon box can also be connected

Whether a directional coupler pass-through socket with terminating resistor or a tap/individual socket is required in your case results from the broadband distribution cabinet design. This is level-dependent, and no one can answer your question seriously from a distance; it is anyway a task for the installation partner of your KNB, who selects the socket so that the standard level windows are also maintained.

Since the term end socket appears in a post: tap/individual sockets are often mistakenly called that, real modem end sockets are correctly designated as internally terminating pass-through sockets, such as AXING BSD 963-11 or WISI DB 09 M 0650.