Diplexer question

[raven540]

I have a triple lnb dish which incorporates a multiswitch. I want to run two seperate directv receivers with tivo. Thus, I need two lines from the dish for each of the two receivers. I also want to have a cable tv line at each of the two locations. The rub is that I currently only have two lines going into each location. One cable and one satellite. Since my dish has the capability of four separate lines, I believe the solution is to add a set of diplexers to each line to carry the cable siginal and sat siginal together. I believe I need a dual diplexer such as the Terk BDD32 which has three inputs (2 for sat. and 1 for cable). Is that correct? Is there something better to use? Do I need anything other than standard F1 connectors at the ends of each line? Also, I need to run the fourth line from the sat dish multiswitch to the ground and then into the crawl space where I will attach the diplexer. The others sat lines appear to have additional attachments to the F1 connector. What do I need here? I know there are other types of add ons to the connectors but I have no idea what they are whey they are needed or what I should use. Thanks for any help.

[RonD]

You have 2 lines to each room already.
1 line from the dish and 1 line from the cable box.
So you will need to run 1 NEW line from the dish to the cable box, use a di-plexer to combine Sat and cable on 1 line, then at the other end of that line, in the room, add another di-plexer to separate the sat and cable signals.
Do this twice for 2 rooms, so you will need 4 di-plexors, and 2 lines from the dish to the cable box. Keep in mind a di-plexer has a 4db loss, so 2 di-plexers on 1 line have an 8db loss you can start to get a poor cable signal because of this.

Because you have an all-in-one LNB, you would need to add a 5x4 multi-switch to add the cable signal at the dish, then 1 di-plexer at each room you want cable.

All connections are F