can I diplex like this?

[jediphish]

Have four lines running from AU-9 slimline dish to media junction box where they feed a Zinwell 6x8 switch.

From the switch, I only have 6 lines running out: 2 to main room connected to HR20-700; 2 to den connected to HR10-250; 1 to bedroom connected to HR10-250; and 1 to office connected to HDVR2.

I have an antenna in the attic. Currently it is only connected (via direct coax connection) to the main room and the den. I do not have a separate coax cable run to the bedroom (and cannot easily fish one), but I would like to access the attic antenna feed. Can I diplex the single coax feed that is coming out of the Switch that is going to the bedroom, so that I can feed an OTA signal on the same wire? Would I need to use the B-band converter? Thanks.

[harsh]

Can I diplex the single coax feed that is coming out of the Switch that is going to the bedroom, so that I can feed an OTA signal on the same wire?As long as the diplexer is downstream from the WB68, you should be OK at least until the new satellites come on line.Would I need to use the B-band converter?Nobody who knows is talking. You'll have to wait until the BBC is required.

[jediphish]

One more thing - do I have to use a special diplexer splitter at both the point of combination and the split? Or will a regular coax splitter work at either point?

I have one diplexer and a few splitters lying around. Do I need to purchase one more diplexor for this to work properly?

I don't want to purchase another diplexer if a std splitter/combiner would work to combine the two signals, which I would then properly split with the diplexer.

[harsh]

One more thing - do I have to use a special diplexer splitter at both the point of combination and the split?You need a diplexer to "inject" the OTA signal after the switch and another to "extract" the OTA signal before the receiver. You need a pair for each line that you want to add OTA signals to.

[Tom Robertson]

Harsh is correct, you can diplex to HR10 in bedroom like this:

Dish==Switch--diplexor--diplexor--HR10
Antenna----------+ . . . . +----+

When you eventually replace the HR10 with an HR20, you would insert the BBC as this:
Dish==Switch--BBC--diplexor--diplexor--HR20
Antenna---------------+ . . . . +------+

HTH,
Tom

[jediphish]

Thanks to all who replied. I'm going to get a second diplexer and see if I can make it work.