If you want to hook-up another satellite receiver or set-top box with an existing DD Freedish dish antenna then follow this technical guide.
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It is possible to connect 2 or more DD Freedish boxes with a single dish antenna. You have to replace your single LNB with multiple output satellite LNB.
Please check which LNB will be suitable according to your requirement
1) Two Output Universal Ku-Band LNB – You can connect up to 2 Set-Top boxes with one DD Freedish antenna. Just replace it with it.
2) Four Output Universal Ku-Band LNB – You can connect up to 4 Set-Top boxes with one DD Freedish antenna. Just remove single Ku-band LNB and fit this Ku 4out LNB.
3) Eight Output Universal Ku-Band LNB – By Installing 8 Output Ku-Band satellite LNB, you can connect up to 8 DD Freedish Set-Top boxes. It is useful for multiple floors in a single building.
Do You Need to Align DD Freedish Antenna Again?
No, you can just replace the LNB and need separate wiring for each DD Freedish Set Top Box connection.
Is there any signal disturbance while using multiple DD Freedish Boxes?
No, there are not many gain losses, You can use any multi-out LNB for Doordarshan free DTH reception.