HDTV talk - antenna and reception issues [consolidated]

mrsun18

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starhub point for analogue, while indoor antenna for digital. we were watching channel u.
Glad that you have cleared up the confusion.

That being the case, bearing in mind that starhub's analogue signal also lags behind MediaCorp's terrestrial signal, it is still faster than the DVB-T2 signal coming from repeaters and received by your indoor antenna.

Yet there is one question which I don't have the answer - whether the analogue signal and DVB-T2 signal being transmitted at Batok are synchronised or not.
 

Streetwise

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Cable point is like wired internet connection whileas using antenna is like using wifi. Or may be digital has bigger file size so take longer time. Same same but different. Just guessing.

U write as though u know the ans.....lolz. Fyi, My TVs are connected to MATV antenna....switching bet analogue and DVBT-2/DVB-C....analogue is playing ahead by a sec or so.......as others have pointed out. As to reasons why...I don't hve the ans.
 
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SiaoAngMoh

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Cable point is like wired internet connection whileas using antenna is like using wifi. Or may be digital has bigger file size so take longer time. Same same but different. Just guessing.

Damn :s22::s22::s22:

Digital TV transmissions use far less bandwidth as compared to the analog TV transmissions. This is the main advantage for DTV, it frees up a lot of radio frequency spectrum (a valuable/limited resource), allowing the same number of channels to be transmitted (digitally) with less RF spectrum. How? Far better compression. However, this requires more processing to encode/decode the signal, which adds latency.
 

seowbin

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Yes, you are right

The playback source is via hd sdi (assuming hd), they need to be first encode into h.264(compression) fixed or vbr.
From there, if go terrestrial(analog) broadcast is convert to radio signal (uhf or whatever) then reach antenna liao.

Digital broadcast via satellite or dvb-c will need to take channel bandwidth into consideration. For example, at 546mhz can accommodate up to 4hd or 2hd 4sd.

By squeezing multiple tv channel into a frequency(multiplexing), added processing time required. A lot of stuffs can be done during the multiplexing stage. Not all channels are treated equally in broadcast world. Your fav hbo hd are likely to have better quality than ulu hd channels.

Something to add on, naturally from mediacock to starfug. The video need to be transmitted via MPEGoIP in theory before starfug get to process so additional latency is from there.
 
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seowbin

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Broadcasting world is fun especially now even matrix switches(av switches) found in office can even do h.264 and jpeg2000 compression. Attended couple of courses on broadcasting before

Too bad, they don't pay high in that industry or i don't know enough people :s34:
 

hlw8888

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May I ask if this is acceptable?

123twfl.jpg


my antenna is daiyo EU 1703 (Digital Indoor Slim Passive Antenna FM + DVBT 2) which i mounted above my sony 32r500c tv, on top of power socket points, abt 60cm from the nearest window.

also, i have a router near my tv, will it affect the tv digital signals?
 

Kiwi8

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May I ask if this is acceptable?

123twfl.jpg


my antenna is daiyo EU 1703 (Digital Indoor Slim Passive Antenna FM + DVBT 2) which i mounted above my sony 32r500c tv, on top of power socket points, abt 60cm from the nearest window.

also, i have a router near my tv, will it affect the tv digital signals?
Yes, quality 100 means the TV has little to no problems decoding the signals it has received from the antenna. If the TV does not display distortion issues, then u need not adjust the antenna. :o
 

hlw8888

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Yes, quality 100 means the TV has little to no problems decoding the signals it has received from the antenna. If the TV does not display distortion issues, then u need not adjust the antenna. :o

wat abt the signal level (some called it strength), it is always ard 45 to 50+, is it ok to remain like this? :o

cos last nite ard 10+pm, i got a sudden disruption when watching channel u, it shows no signal. until i try adjust abit the antenna, then it became normal.
 

Kiwi8

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wat abt the signal level (some called it strength), it is always ard 45 to 50+, is it ok to remain like this? :o

cos last nite ard 10+pm, i got a sudden disruption when watching channel u, it shows no signal. until i try adjust abit the antenna, then it became normal.

U can always adjust, but it is not really needed to adjust until 100% signal strength. What matters is really the signal quality of 100% or close to 100% cos that is really the indicator of all the required video/audio data that's received.
 

hlw8888

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U can always adjust, but it is not really needed to adjust until 100% signal strength. What matters is really the signal quality of 100% or close to 100% cos that is really the indicator of all the required video/audio data that's received.

oic. thks for the detailed explaination. :)
 

tbhmelvin

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I stay in a condo at pasir ris and have a tv which is digitally ready. but I still can't receive any signal. anyone knows why?
 

Henry Ng

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you know where got sell? and pricing is around how much? seems like no booster on this too.

Ang Mo Kio Hub Fairprice Extra has this funke 5.1 at $59 each and every funke has an amplifier. Search Funke combo 5.1 and sure can see a pdf file about it. They can even filter out LTE signal for you. Maximum range is 40km. As long as your area is green and you put antenna near window or on window grille you should be able to receive clear image. Tv must be DVB-T2 ready. If landed house then use rooftop antenna sure can.
 
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winger28

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I m using Draco box which supplies power to its active antenna. Can I just get an ordinary antenna cable to connect and extend the antenna to reach my windows?

Not sure if special cable is needed since there is power supplied to the antenna.
 
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