Tv Connectors

[BusyBuilder]

We have this set up in our Hymer, there is a small box on outside of it, which I think is for an outside TV satellite, but we've never used that.
But I've no idea what the black box is for with 2 buttons A and B.

Any ideas ?

 

[Manic]

Could it be to select roof aerial or black box aerial.

 

[Bessy765]

Do you have an external aerial point, there is sometimes one so if you were on a site they may provide an aerial point that you can connect to.

 

[BusyBuilder]

Yes there's an outside aerial connection on side of van, I've never opened it or needed to use it.

 

[pappajohn]

Looks like an aerial splitter to me.
Common IN then A or B out.
A could be front mounted TV...
B could be a second rear TV.
Regular TV aerial doesn't like feeding two TVs at the same time without a booster.

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[Landy Andy]

There are three ports on the top.
1 is one input from external aerial input. Labelled A on device
2 is out to TV. Labelled to TV
3 is second input, which is van aerial via booster. Labelled C on device.


1 and 3 van/external could be the other way around. But think that is correct from picture.