"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…"
clifford c wright's Discussions
missing tv1,tv2, duke on freeview.
Started this discussion. Last reply by clifford c wright May 17, 2018. 16 Replies 0 Promotions
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
clifford c wright's Page
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"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…"
"You haven’t told us what your signal strength meter says.
Is the TVNZ Mux different from the others,quality wise ?"
"I
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…"
"Power of the likes of te aroha,whariti,waiatarua will be 1 kw base or 10kw radiated
As seen on wikipedia"
"The Freeview coverage maps show their location and coverage.
https://freeviewnz.tv/faq-library/about-digital-tv/coverage-maps/
The previous link I posted gives frequencies, location and polarisation.
Only hard one to find is Power and you should be…"
"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.…"
"Dont you mean gray-hoverman?
Could try the 4 bay stacked
And waiatarua would be most likely to get to helensville"
"Under the Resources Tab at the top of the page.
http://www.rsm.govt.nz/online-services-resources/pdf-and-documents-library/publications-and-guides/broadcasting/digital-television-channel-usage/table-of-digital-television-channel-useage"
"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…"
ZinwellGraham Wilson replied to clifford c wright's discussion missing tv1,tv2, duke on freeview.
"Hi Cliff,
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…"
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