Three tuners with two LNB feeds - loop through query

[aido]

I took a punt on one of the LX3s from WoS this week and I'm just setting it up tonight but I'm confused around the loop through settings.

Basically I've got the three DVB-S tuners in there and I've got two feeds coming from the LNB connected to the in ports of tuners A & B.

I've then connected the output of tuner A to the input of tuner C.

Tuners A & B are configured in simple mode and both pointing at 28.2E and none, and Tuner C is in loop through mode and is configured as connected to Tuner A.

If I use Sat Finder it only shows me Tuners A & B as being available and from testing I can only playback two channels at once - I can't actually get three playing at the same time.

I'm just trying to work out how this should work - if I try and playback a channel on the same transponder as tuner A on tuner C that should let me get three streams shouldn't it?

The manual only shows loop through being used with one LNB feed to tuner A with the loopback cable then connected to the input of tuner B - should I be doing that with the separate feed into tuner C?

I tried changing tuner C so that it is configured the same as A & B and it seems to find channels fine in sat finder etc (as they all do and lock ok etc).

Thanks in advance :)

[judge]

Try without loop through cables first, not all E2 boxes need them when using loop through to another internal tuner.
Use both feeds in a tuner to make sure they work as expected.
If both feeds work on a single tuner, check that you get the same results on all other tuners.
If all works as expected, it really is down to the drivers provided by the manufacturer as to your loop through options.
Some manufacturers drivers work better than others in this area, some copy mistakes made by other manufacturers...
Don't have an LX3 to compare on, but what you want should be easily possible.
Feeds to A & C, C looping through to B (without hardware cable) would be my first try.
If that doesn't work, debug logs might be handy.

[aido]

Thanks mate, I'll do some more testing when I get in from work tonight :)

Everything else so far has worked well - transcoding etc all seems fine via Blackbox HD on the iPhone and it's a powerful little box and seems they've all sold now.

The only bad thing I can say about it is the remote sensor has a much narrower window than the XP1000 it's replacing - the remotes looks identical with slightly different key mapping but they use different frequencies so I can't see if it's the remote end or the receiver end - I've got a uni remote so will see if that is the same :)

[Sicilian]

The manual only shows loop through being used with one LNB feed to tuner A with the loopback cable then connected to the input of tuner B - should I be doing that with the separate feed into tuner C?


To have full range on tuner C you will need a direct feed to LNB, if Tuner A is busy and C is looped to A, C will only have available channels on the quadrant A is using.

[aido]

To have full range on tuner C you will need a direct feed to LNB, if Tuner A is busy and C is looped to A, C will only have available channels on the quadrant A is using.

That's what I was expecting but in that config it is as though tuner c doesn't exist - I'm still at work for a couple more hours so I'll have more of a play around later :)

[Huevos]

Satfinder does not support loopthrough or satposdepends.

[aido]

Ah that'll be it then thank-you - the box info shows three tuners but sat finder was only showing two unless I had it in simple mode and that's one of the reasons I was getting confused :)