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picking up split signal
this thread has 6 replies and has been viewed 282 times
Hi Everyone. I'm a little new to MCE and strugling to get my set up to work. BAsically my sky digital signal comes into my decoder and is decoded and then sent back out to an amplifier and then a signal splitter. The signal is then split 4 ways round our house. We also have a standard aerial that goes thorugh the splitter too.
What this means is that in each room I can get the standard 3 nz channels and then sky digital as a 4th channel- all from one wall jack in each room. This has worked really well on all our TVs and my previous acer PC with their own software. I have just put in a new computer with MCE on it and it can pick up the 3 standard channels but not the sky digital.
I'm pretty sure the problem will be that the modulated output of the Sky box isn't on an exact NZ analogue channel, & while the TVs are flexible enough to tune to it, the tuner card uses the set 8MHz channels for New Zealand.
You might have to look in to "tuning overrides" - I don't know how it works, but supposedly you can specify the frequencies to scan (so you'll have to know all 4 exact frequencies).
Justin
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VMC32: Asus M3N78-EMH HDMI, 4850e, TMG A2 CPU Cooler, 2x1GB Kingston HyperX 800, 2 x HVR-2200 (4 tuners), 500GB Samsung, NSK2480B. Connected to a Metz 32 inch LCD.
Office/Server: Abit A-N78HD, BE-2350, 2x1GB Kingston HyperX 800, 2 x AverTV Duo (4 tuners), CoolerMaster Centurion 5 Tower.
Logifuse is almost certainly correct, but you might also be causing some of the problems with your setup.
This may sound a bit counter-intuitive, but you might want to try removing the amplifier between the Sky decoder and the splitter. The output from the decoder will be many times more powerful than a signal collected from straight from your antenna. The tuner cards are quite sensitive, and expect signals with low power. With the addition of the amplifier, you could be over-driving the RF front-end of the tuner card, exceeding the upper bound of the Automatic Gain Control. This will severely distort the signal as the card would see it.
In fact, if you want to use the amplifier, you may benefit more by using it on the aerial side.
Also, splitters are just that. They are supposed to take one signal and make it many with a minimum 3dB, (1/2 power) loss at each split. What you have described is using it as a mixer/splitter at the same time. This is a lot less efficient and noise producing than a using a proper combiner and then splitting the output of that. What you have can work acceptably well, but you must make sure that ALL terminals are properly terminated at all times to prevent ringing on the circuit.
Regards
Sutty
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