Replies to This Discussion

Permalink Reply by Alan Brown on October 8, 2017 at 18:25

Exactly same issue here. Sony KDL32V-4000 exhibits frame-rate stutter ONLY on Maori TV & Te Reo. I'm in Milford with a UHF aerial pointed at PInehill. Is it just a Sony issue? With the pixelation issue on the newer model listed above, I suggest it's a compatibility problem between the upgraded HD transmission on these channels, and Sony hardware. 

In that regard, it is an issue that Maori TV & Te Reo need to look at as it affects old and new Sony TVs and therefore potentially a lot of users.

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Permalink Reply by Satellite Networks Motueka on October 9, 2017 at 8:22

Obviously not enough data getting through for HD on the higher frequency. Id be checking aerial polarisation, cables, connectors or anything else inbetween..

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Permalink Reply by Alan Brown on October 9, 2017 at 10:13

This stock answer just doesn't seem acceptable to me. Speaking for myself and other users here, all other HD TV channels display perfectly fine - never had a problem, so if it was a connection issue, we'd experience this for other channels. I am an electronics technician and, yes, I have checked all connections, orientation. This issue is not confined to this forum and just a few users as I have seen the same comments on other forums (geekzone etc).

Stutter or pixellation with HD transmission is generally caused by interference (microwaves for ex), or weak signal. From what I can discover, the signal strength is indeed lower for Maori TV and combined with the higher frequency (610MHz), adequate coverage would indeed be lower.

• MediaWorks (52 dBuV, 40 dB)
• TVNZ (51 dBuV, 34 dB)
• Kordia (49 dBuV, 28 dB)
• World TV (51 dBuV, 26 dB)
• Maori TV (42 dBuV, 20 dB)

(Wharite, Manawatu)

I will try with a reorientation to Sky tower (even though I don't have direct line of site, the transmitter is higher power than Pinehill). Failing that, I will try an amplifier to see if that helps.

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Permalink Reply by willis on October 9, 2017 at 10:50

Even though maori mux is 10db below the rest of them it is still above the minimum
Maybe they havent set up their encoding properly?

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Permalink Reply by forumuser on October 9, 2017 at 10:56

Hi Guys 

I will just double check with the team and have a quick look

Josh 

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Permalink Reply by Paul on October 9, 2017 at 11:48

My terrestrial antenna points directly at Mt Erin and I've confirmed that my PC tuners (Hauppauge and Leadtek on the same antenna as my Sony TV) work perfectly with Maori TV HD.  I've also checked electrical continuity with the connection at the antenna F-connector to the active element where corrosion could be a problem.

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Permalink Reply by forumuser on October 10, 2017 at 12:08

Problems arise with antenna connections, there is not a problem with the MTV Mux, usually from the receiver's end of corrosion, old equipment, alignment issues etc.. 

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Permalink Reply by Satellite Networks Motueka on October 23, 2017 at 20:19

Alan Brown said:

This stock answer just doesn't seem acceptable to me. Speaking for myself and other users here, all other HD TV channels display perfectly fine - never had a problem, so if it was a connection issue, we'd experience this for other channels. I am an electronics technician and, yes, I have checked all connections, orientation. This issue is not confined to this forum and just a few users as I have seen the same comments on other forums (geekzone etc).

Stutter or pixellation with HD transmission is generally caused by interference (microwaves for ex), or weak signal. From what I can discover, the signal strength is indeed lower for Maori TV and combined with the higher frequency (610MHz), adequate coverage would indeed be lower.

• MediaWorks (52 dBuV, 40 dB)
• TVNZ (51 dBuV, 34 dB)
• Kordia (49 dBuV, 28 dB)
• World TV (51 dBuV, 26 dB)
• Maori TV (42 dBuV, 20 dB)

(Wharite, Manawatu)

I will try with a reorientation to Sky tower (even though I don't have direct line of site, the transmitter is higher power than Pinehill). Failing that, I will try an amplifier to see if that helps.

Just wondering if your problems were resolved and if so what was the problem.

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Permalink Reply by Paul on October 24, 2017 at 14:43

I replaced my terrestrial antenna today and the performance from my Sony is the same. Signal strength is at maximum, pre viterbi is lower but more variable than that of other HD stations, about 9 e-5 to 1.5 e-4, while the others are more stable at about 3 e-4.  Post viterbi is always zero.  The COFDM AGC number is about -460 for all stations.  All numbers are the same as they were with the previous antenna.  As I mentioned before, the two PC-based TV tuners split off 1/3 of the same antenna work fine.

I was hoping the 3G/4G "filter" in this new antenna would help since there are cell base units within 200 m.  Perhaps this is a multipath issue?  I've got a line of sight with Mt. Erin but close over the rooftops of urban Napier.  But why only these two stations after a decade of perfect performance on all the others?

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Permalink Reply by Satellite Networks Motueka on October 26, 2017 at 7:36

Have you tried running a cable direct from the aerial to the TV??

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Permalink Reply by Paul on October 26, 2017 at 8:30

That was my next thought despite a high confidence in the RG6 already in place. Also would try different roof locations.

However, I now have confirmation that two other Sony TV owners have the same problem.  I've opened a new thread on this issue since there must be many Sonys of this late 2008 vintage in the country.

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Permalink Reply by Paul on October 26, 2017 at 9:17

Oh, actually I did try a direct cable before installing the new antenna and pointing it by hand out the living room window.  If anything the issue was improved as the signal became weaker but then pixelation showed up.

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