We're in Tauranga, and have just installed a new digital freeview tv, and are having trouble with receiving TV3 and Four.
Channels 1,2 and all others are all good, while 3 and Four, no service.
I seem to remember from the past that TV3 and Four broadcast on either UHF or VHF whilst all others are on the other (VHF or UHF) so am thinking some issue lies here? Or am I barking up the wrong tree?
The TV is returning the following on signal tester:
TV1/2 etc: Strength 10 / Quality 4 / Actual picture, perfect
TV3/Four: Strength 7 / Quality 0-1 / Actual picture, none "No Service" message --> odd that there is a good signal strength still?
There is a masthead amp installed (which is required - turning it off looses TV1/2 reception)
And on analog, TV3 is received just fine and dandy.
Up in the loft the setup is as follows:
VHF and UHF aerials (two separate) --> diplexer --> mast head amp --> tv
The masthead amp input goes into the input marked UHF/VHF.
The diplexer currently has BOTH UHF and VHF inputs connected on the same input (either marked UHF or VHF, cannot remember at moment, but def marked as just one.)
So I have tried separating them, putting on aerial on one and the other across the other (I'm not 100% sure what aerial is UHF and VHF so tried both ways), and neither fixed the problem.
In fact, with it one way round (so with each aerial on it's own diplexer input), we could get TV3/Four but then lost everything else. And the other way around (with each aerial still on it's own diplexer input, but the other way around), we got TV1/2 etc but no 3/Four.
Now, I have it as it was originally setup before I went into the loft, with both aerials going into the ONE diplexer input, and achieve everything bar TV3/Four.
Where do I go from here? Any suggestions and ideas most appreciated.
Thanks in advance
Rob
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