rodadus Posted November 8, 2008 Posted November 8, 2008 I live in a block of units in Liverpool,Sydney and have a hd tv. The problem is when I watch 9hd the picture is good then all of a sudden the picture goes all blocky and there is no signal,then I turn the chanel to 9 analog so I can continue to watch what I was watching,the picture is snowy but watchable.Then after a while all of a sudden the picture is great (theres no wind outside) then I turn it back to digital 9 because the picture is good again,untill it happens again. Ive asked a couple of my neighbours if they had problems with channel 9 reception and they say they dont. What could it be?
digitalj Posted November 8, 2008 Posted November 8, 2008 sounds like a loose connection, have you checked that the flylead is connected securely to the TV and the Outlet, and also that the cable is connected securely at the back of the outlet?
mtv Posted November 8, 2008 Posted November 8, 2008 I'd agree with a connection issue. Moulded flyleads (the ones with the plastic connectors) are a common cause, as the cable often breaks internally. Given that others in the units have no problems suggests it is either cabling or wall outlet in your unit, or the flylead which is the likely suspect.
rodadus Posted November 8, 2008 Author Posted November 8, 2008 I've checked all that, everything is connected fine.I will go and buy another cable and see if its maybe that. I'll check back here to let you guys know If this fixes the problem.
rodadus Posted November 15, 2008 Author Posted November 15, 2008 Bought a new cable its still the same. I wonder if theres something wrong up there near the antenna.Are the cables split up the top to go to different units?
digitalj Posted November 15, 2008 Posted November 15, 2008 (edited) Bought a new cable its still the same.I wonder if theres something wrong up there near the antenna.Are the cables split up the top to go to different units? checked the back of the outlet? did you buy another "moulded" one or a proper RG6 Quadshield Cable? Edited November 15, 2008 by digitalj
rodadus Posted November 17, 2008 Author Posted November 17, 2008 I checked the back of the outlet and everything is connected fine and I bought a RG6 quad shield cable but still the same. Anything else I can look at?
digitalj Posted November 17, 2008 Posted November 17, 2008 The TV Could be faulty, have you tried during these instances connecting the antenna to another device e.g. VCR, STB, DVDR or another TV and still had same problem? If you do this and the picture comes good from an alternative device but not the TV, it proves the TV is faulty, or if you get the same problem with an alternate device, it could be a loose connection at the outlets connection at the splitter.
charlesc Posted November 17, 2008 Posted November 17, 2008 ...then I turn it back to digital 9 because the picture is good again,untill it happens again. Are you saying that this intermittent problem is only effecting digital 9 (with a snowy analogue 9)? You have no problems on any other channel? Digital and analogue for the other channels are all OK?
rodadus Posted November 17, 2008 Author Posted November 17, 2008 The TV Could be faulty, have you tried during these instances connecting the antenna to another device e.g. VCR, STB, DVDR or another TV and still had same problem? If you do this and the picture comes good from an alternative device but not the TV, it proves the TV is faulty, or if you get the same problem with an alternate device, it could be a loose connection at the outlets connection at the splitter. I tried another tv still the same thing.Is the splitter under the roof? Charles it affects all the channels but not as much as channel 9.The other channels are only slightly worse when this happens. I wonder if a signal booster would help. Thanks for all your help guys really apreciate it.
mtv Posted November 17, 2008 Posted November 17, 2008 Yes, there will be a splitter/MATV distribution system somewhere in the building. There are different configurations of TV signal distribution systems, some which don't use splitters, but use directional taps, etc. It still sounds like a faulty cable or connection, but it could also be an intermittent fault somewhere else in the distribution system, including an interference issue. Report the fault to the owner/agent/building management. They are responsible to ensure the MATV system is maintained. They will need to contact whoever maintains the MATV system. If they don't have a maintenance contract, any pro installer experienced with MATV should be able to help.
Fishman Dan Posted December 5, 2008 Posted December 5, 2008 I have the same problem. I live in Gladesville, and every TV channel is superb, but we just can't get channel 9. I have checked the tuning settings in the TV, and can confirm that the signal strength is 100%, and quality wavers down to about 70 or 80%. I get severe break-up at best. I've had an aerial guy come and do some work and that brought about the improvement for all other FTA channels, but Ch 9 remains terrible. If I plug in rabbit-ears I can get better Ch 9 reception - looks crazy with a $2.5k tv with dodgy rabbit ears coming out of the side. Anyone??
mtv Posted December 6, 2008 Posted December 6, 2008 I've had an aerial guy come and do some work and that brought about the improvement for all other FTA channels, but Ch 9 remains terrible.If I plug in rabbit-ears I can get better Ch 9 reception What work did the antenna tech perform? What did he say was causing the problem and what was his recommendation of how to fix it? If you have a master antenna system on a block of units, it may not be set up for digital reception. 100% signal strength as indicated on a STB/tuner may be too high, causing overload of the tuner resulting in too many data errors and loss of reception. If this is the case, an attenuator will reduce the level to correct the overload. More info needed on measurements taken and recommendations from the antenna tech, please.
MediaDude Posted December 6, 2008 Posted December 6, 2008 I have the same problem. I live in Gladesville, and every TV channel is superb, but we just can't get channel 9. I have checked the tuning settings in the TV, and can confirm that the signal strength is 100%, and quality wavers down to about 70 or 80%. I get severe break-up at best.I've had an aerial guy come and do some work and that brought about the improvement for all other FTA channels, but Ch 9 remains terrible. If I plug in rabbit-ears I can get better Ch 9 reception - looks crazy with a $2.5k tv with dodgy rabbit ears coming out of the side. Anyone?? Im not too sure if its the same issue but I had a friend in Lane Cove living pretty much under the towers that could not one of the channels in a retune. We sorted it out by taking his STB (for you it will be the whole set unfortunately to try this) and tuning it from my place in Epping. Worked a treat, and I have successfully done this now with two others who had issues when trying to search for a channel. I suspect it has something to do with digital reflections and your tuner struggles to differentiate which source to use off your good antenna but the digital reflection is much weaker on rabbit ears so it has less impact. Could be complete rubbish but its my best guess at this point and it may offer some help to you.
alanh Posted December 6, 2008 Posted December 6, 2008 Fisherman Dan & Nerd Alert, These problems are Sydney specific, so I will continue this strand there Sydney Viewers' Forum AlanH
stahc Posted December 6, 2008 Posted December 6, 2008 good to see nothings changed with raymond & the henchmen
Crowley Posted December 9, 2008 Posted December 9, 2008 Im not too sure if its the same issue but I had a friend in Lane Cove living pretty much under the towers that could not one of the channels in a retune. We sorted it out by taking his STB (for you it will be the whole set unfortunately to try this) and tuning it from my place in Epping. Worked a treat, and I have successfully done this now with two others who had issues when trying to search for a channel. I suspect it has something to do with digital reflections and your tuner struggles to differentiate which source to use off your good antenna but the digital reflection is much weaker on rabbit ears so it has less impact. Could be complete rubbish but its my best guess at this point and it may offer some help to you. Many Lane Cove/Artarmon users get UHF from North head as its a single location rather than trying to pick up Willoughby,Artarmon and Gore hilll.
Fishman Dan Posted December 9, 2008 Posted December 9, 2008 Thanks everyone for the replies. Seems this area can be a little volatile. The technician basically replaced some cable that had deteriorated. The aerial and cabling is about 10 years old (as old as the house). I called Mr Antenna when hunting around, they basically said if the aerial was over 4-5 years old I should buy a new one. Sounded like sales gimmickery to me, and I wasn't really willing to spend another $300+, especially considering I spent $2.5k on the TV in the first place - the missus just doesn't understand! Attenuator - anyone tell me more about these? Do they live in the roof, or between the wall and the TV?
mtv Posted December 9, 2008 Posted December 9, 2008 Attenuator - anyone tell me more about these? Do they live in the roof, or between the wall and the TV? Between the wall outlet plate and the TV. Also, antenna age isn't always a clear indication if the antenna is suitable for digital signals, as there are new antennas being sold that are not optimised for digital. Ironically, often it's some of the 'franchise' installers who are selling/installing them. EG: antennas desingned to receive below channel 6 (for ABC Ch 2 analogue and FM radio).
Fishman Dan Posted December 9, 2008 Posted December 9, 2008 (edited) Just to confuse matters further.... I've reverted to the current roof aerial and checked my TV's signal strength/quality. Ch 9 registers 10 and 10 (out of 10). There is a little breakup, so I think this suggestion of a strong signal strength has legs. But I've lost my ABC channels entirely! I'll have to stick to the rabbit ears, if my 11.5 month old doesn't get to see In The Night Garden tomorrow there will be trouble!! Edited December 9, 2008 by Fishman Dan
Shakows Posted December 18, 2008 Posted December 18, 2008 I am on the Central Coast, NSW and have a similar problem with Digital 9 Continually, like every 5 secs, the pictures chops/pauses, happens on both SD + HD(Analogue is fine), happening on 2 different Set Top boxes on 2 different TV's Problem only started after moving house, the funny thing is both Box's show I am getting a better signal here Every other channel works great so I guess it means the Antenna is not tuned properly, any body got any suggestions for tuning an aerial for Channel 9 on the Central coast or any other ideas on what the problem maybe?
beeblebrox Posted December 21, 2008 Posted December 21, 2008 I am on the Central Coast, NSW and have a similar problem with Digital 9Continually, like every 5 secs, the pictures chops/pauses, happens on both SD + HD(Analogue is fine), happening on 2 different Set Top boxes on 2 different TV's Problem only started after moving house, the funny thing is both Box's show I am getting a better signal here Every other channel works great so I guess it means the Antenna is not tuned properly, any body got any suggestions for tuning an aerial for Channel 9 on the Central coast or any other ideas on what the problem maybe? is the timing pretty constant?? If so it's likely to be an electric fence that is shorting somewhere... all it takes is a blade of grass.... or in most cases the installation of the fence is totally dodgey and generating impulse noise... check out around either on your property or your neighbours... even get the fence turned off temporarily to see what happens.
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