Miglia TV Mini and missing ITV channels
Gareth56 said:
I wonder if anyone can help?
I have bought a Miglia TV Eye from Apple and despite having a brand new digital aerial on the roof and being told by the engineer who installed it that the signal is excelelnt I cannot get any of the ITV channels or channel 5 nor BBC 4 or SKY News and a few other of the Freeview channels. In my lounge I have a Freeview box which can get ALL available channels via the same aerial. There are two lines coming from the aerial (the engineer said it was OK to have 2 separete lines because the signal is strong enough to cope) one goes to the Freeview box in the lounge, the other to the computer room. I can actually see the local transmitter from my house. Looking at the Elegato support page and their FAQ, it does suggest that if you cannot receive any ITV channels it could be due to the signal being too strong so insert an attenuator in te line, I tried this and I still just the same number of channels and no improvement.
I am in the same position as Gareth. I'm using a roof aerial providing a 100% strength signal, and also purchased an attenuator as recommended in the FAQ on the Elegato support page. The following FAQ from the Digital Spy website appears to provide an explanation - but no new satisfactory solution.
**Try this: Run the Set Up Assistant and re-tune with the attenuator, and then re-tune again without the attenuator. I'm now receiving ITV1 and other channels in the group for the first time as I write this!**
Good luck.
Tony
"If you have this problem then the channels normally affected are either Five, QVC, Bid-Up and TVTravelShop or ITV1, ITV2, ITV News and C4. (If you have difficulties receiving any other channels please see 'How do I know if I can get DTT and do I need to upgrade my existing aerial?')
"Both of these sets of channels fit into a single multiplex. A multiplex is a set of channels that only use up one frequency -- on analogue (normal) television you can only have one channel, whereas you can have 4 or 6 in the same space on digital.
"Both of these multiplexes use a different way of transmitting the signal compared to the other channels on Freeview. These channels use the QAM64 mode instead of QAM16.
"The trouble with sending a large amount of bits in one go (as is the case with QAM64) is that noise from power switches, cars or even just the distance between the aerial and transmitter can confuse the receiving box. If the box is confused into thinking that it is receiving something it isnt, it classes it as an error. If there are lots of errors then the picture will break up, or, in extreme circumstances, not be picked up by the DTT box at all.
"QAM64 falls into precisely this problem. It has a greater bandwidth (6 channels instead of 4) but is more susceptible to noise. So, if you are not close enough to the transmitter, these channels will look worse than the others.
"QAM16 has less points than QAM64, so noise isnt as much of a problem -- there is far more tolerance for errors but there is less bandwidth (space) so you get less channels."