In the last 3 days the three channels TV1, TV2 and Duke have disappeared from our free view signal.Since we are very much in the fringe area here in Helensville, I had assumed that we were receiving…Continue
"That is VERY interesting Adam, I now know that my Gray-Hoverman was cut for slightly too high a frequency,
and have now designed some new active elements cut for 580 MHz instead of 610. I will make them up when I can get out to Silverdale for some…"
"Same dam issue. 1,2 and duke were working fine this afternoon. Now they have simply disappeared. If I try selecting 1 or 2 on the remote, it just goes to channel 3 instead. TVNZ channels simply do not exist any more. factory reset. No change at all.…"
"Well I went up on the roof yesterday PM with my signal strength meter. On the higher channels I get about 650 uV (unamplified) which gives me a good solid result. But on channel 29 (538 MHz) i get a much weaker signal, about 100 uV. The weird thing…"
Had a minor brainwave last evening and will be up on the roof again this afternoon. I seem to remember that
one end of the active "zig zag" element has a join in it. Could perhaps have oxidised. That would indeed have the effect of…"
"Yes of course Willis, I hadn't checked and my poor old brain gets confused sometimes! Indeed I had assumed that Waiatarua would be the strongest signal ans was rather surprised when my Grove- Hoverman gave me a max signal so far East.…"
"Thanks Guys! Well it just gets weirder. We are talking about the UHF terrestrial signal here don't forget.
Went up on the roof this AM checked out the double extended Grove-Hoverman , all ok except a broken acrillic spacer on the top of the…"
"Ah. The joy of living in the fringes. As you have a UHF strength meter first thing I'd do is check the signal strength for each mux. Sounds like the TVNZ mux has dropped just below minimum reception level. Could be any number of reasons but the…"
I had the same with a Zinwell ZMX7500 Satellite STB after the Games finished
I don't know it this will work for you, but I found a copy of TV1 (labelled CH-12) on 600. After viewing that the other channels were…"