firstly, the signal test screen on a sky box only looks at the 11778 frequency.
this is the only frequency it will measure.
everytime you press the services button the box looks at 11778 - because the menu system in the sky box wants to play the EPG backgound music....which is only on 11778.
11778 is also where the main EPG data is located....on all other frequencies there is only limited (about 6 (ish) hours) of programme information.
this is why you need to change the default transponder, so the box can get some EPG data to start to work. once a successfull download of this 6 (ish) hours EPG information is loaded 99 time out of 100 the default transponder reverts back to 11778 - as is should do.
On the CB, 11778 is very strong in the morning and late at night....
But also, different sky boxes have different tuners inside them, and therefore they react to this 11778 frequency differently./...some love it (pace 2600), some hate it (Pace 440 and 445!)
A freesat box gets its information from a totally different satellite, which is very very stong and therefore there is no need to change any default settings.
A freesat box will not be able to use a sky card, even a freesatfom sky card, and therefore no C4HD, Fiver Five US, the strong FIVE (freesat five is on the same frequency as bbc2!), the alternate ITVS or C4's (on 12402 or 12480 - very strong at night)
If you can get your hands on a pace 2600 (or failing that a pace 430) then do so (ask bill you know who i mean! he may even post it to you!).
you can use a PVR with only one cable, but you will not be able to watch one channel and record another at the same time...one of the advantages of a PVR. you can record it, but you may have fun trying to determin which of the two cable inputs the boxes decide to use to record from!
For two cable feeds to a PVR you need a TWIN output LNB, or a 4 output LNB if you plan to have other reecivers elsewhere inthe house (bedroom for example)
I hope i have not missed anything out.....
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