How many LNBs

theshark

I am about to install my first system and need to get my logic checked.

I want the dish to supply

1. HD Receiver linked to PVR
2. Have at least 2 other rooms each with their own SD receiver
3. As I pick up analogue signals (Irish channels) I want to feed these into the PVR

I understand that 2 LNB feeds will be required - one each for HD receiver and PVR. Will this be sufficient if the PVR has the ability to record more than one channel at a time?

The other rooms will each require an LNB feed. Therefore a quad LNB will be required.

In the future if I wanted to install a 2nd PVR could the signal be sent via a splitter?

Regarding combining the analogue signal, can a diplexer be fitted to combine the output from the HD receiver and ariel which is then connected to the PVR.

satelliteman

As the receiver sends switching voltages and tones to the LNb, by then placing a splitter on the feed, this will cause problems as both receivers will be in conflict with band selection of the LNb.

The cure is to install an Octo LNb (8 output).

Assume you have a seperate PVR. A diplexer not required as you'll be wanting to send RF to feed the PVR. If the receiver had an RF modulator, you could feed the aerial into the input of the receiver and RF output to PVR. This would carry the off air aerial signal and the modulated RF from the receiver to the PVR for recording.

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