Digital TV (DVB T2) Consolidated thread VI

[joshhd]

The thing is, as long the Indonesia's analogue TV station, SCTV and Southern Johor's DTT frequency kept interfere with each other, causing co-channel interference, this reason will always be the main culprit on why some viewers could not receive Malaysia DTT channels.

Indonesia SCTV analogue: 679.25MHz (675.25MHz-683.25MHz)
Malaysia DTT mux: 682MHz (678MHz-686MHz)

See the frequency clash there from the frequency range?

And not just in Singapore, some viewers in Southern Johor could not even receive Malaysia DTT channels properly and easily, and can only receive Singapore DTT channels.
Stay in Malaysia, but can only receive Singapore TV channels.

Indonesia's TV tower transmit power (particularly Batam) isn't as high as Malaysia and Singapore's. Which also explains that not many viewers in Southern Johor can receive Indonesian analogue TV channels easily.

You could consider yourself lucky that if you can receive Malaysia DTT channels in Singapore, that maybe because so happen Indonesia's SCTV analogue TV signal are weak in your area.

That's why the best we all can hope is, Indonesia to shut down analogue TV as soon as possible (or at least in phases, start with Batam first), then Singaporeans can hope to be able to receive Malaysian DTT channels easily without any potential harmful interference.

 

[joshhd]

I see. I suppose even changing a new antenna also unlikely will help, right ?

It really depends on your location, and the height (if you stay in HDB or condo) like how many floors, mainly due to the interference with Indonesia's SCTV, receiving Malaysia channels can be a challenge.
If the antenna you use now couldn't receive Malaysia channels, you could try use other antennas.

 

[Shion]

It really depends on your location, and the height (if you stay in HDB or condo) like how many floors, mainly due to the interference with Indonesia's SCTV, receiving Malaysia channels can be a challenge.
If the antenna you use now couldn't receive Malaysia channels, you could try use other antennas.

Thank you

 

[mrsun18]

New Digital Transmissions

Found 4 new transmission with no identification and programme, using my indoor rabbit telescopic antenna hidden inside the tv console:

800

801

802

803

The transmission frequencies are not displayed owing to limitation of my tv. By using manual scan, I found them on Chs 30 (546MHz), 34 (578MHz), 40 (626 MHz), and 55 (746MHz)(?).

Transmission hours are irregular. Ch 55 is hard to catch as the signal is extremely weak. So I am not sure if this is the right channel.

 

[Shion]

Indonesia channels ?

 

[Shion]

Reverted back to rooftop antenna since my nms antenna is breaking apart further + no more MY channels

 

[mrsun18]

Indonesia channels ?

It's anybody's guess, though I doubt so. I am in the center of the island on low floor but on high ground. Can see the Bukit Batok trasmmitter tower from my balcony.

 

[gogaigai]

Hi all, is NMS antenna recommended? Looking for a small antenna that can stick on the wall for my parents to watch chnl 8.. saw a $12 discount on shopee but so far their shop no reviews yet.

Also, is this the same as the one that the government give for free? Thanks!

 

[Ninjaa89]

NMS worked fine for me and my fam. $12 off I think is a pretty good deal. and yes they are the free one from the government.

Alternatively, there's also other <$10 china-made antennas if you want to try and see, results vary.

 

[Durian Shell]

Hi all, is NMS antenna recommended? Looking for a small antenna that can stick on the wall for my parents to watch chnl 8.. saw a $12 discount on shopee but so far their shop no reviews yet.

Also, is this the same as the one that the government give for free? Thanks!

Wow, $12 only. Can share the link?

 

[cybertech]

I have this old DVB-T antenna do you all think will work in the current DVB-T2 transmission? It stated support UHF 470~860MHz and I have not buy the DVB-T2 USB Tuner yet so never test it out yet. Maybe some expert on antenna can comment.

 

[Kiwi8]

I have this old DVB-T antenna do you all think will work in the current DVB-T2 transmission? It stated support UHF 470~860MHz and I have not buy the DVB-T2 USB Tuner yet so never test it out yet. Maybe some expert on antenna can comment.

Yes it should work for the DVB-T2 signal reception since it supports UHF 470 to 860mhz.

 

[mrsun18]

I have this old DVB-T antenna do you all think will work in the current DVB-T2 transmission? It stated support UHF 470~860MHz and I have not buy the DVB-T2 USB Tuner yet so never test it out yet. Maybe some expert on antenna can comment.

[IMGdeleted[/IMG]

Yes it should work for the DVB-T2 signal reception since it supports UHF 470 to 860mhz.

Yes, and since the sg indoor signal is so good, the active amplifier is most likely not needed. The DVB-T Antenna for Hauppauge Tuner can work just as well if the signal at the location is good.

Btw, my passive rabbit telescopic antenna, without the circular element, works perfectly hidden in the TV console.

 

[petetherock]

Is there anyone living in the West Coast area on a low level?
The reception isn't too good ...

 

[gregory_choo]

I have this old DVB-T antenna do you all think will work in the current DVB-T2 transmission? It stated support UHF 470~860MHz and I have not buy the DVB-T2 USB Tuner yet so never test it out yet. Maybe some expert on antenna can comment.

For antenna, there is no differentiation between dvb-t and dvb-t2.

The problem with your antenna is it consumes 3 watts, so if your house has sufficiently high signal level, do not power on the antenna.

 

[mrsun18]

For antenna, there is no differentiation between dvb-t and dvb-t2.

...

Your comment set me thinking...

DVB-T2 standard has many advances over the T1 technology. For example, the rotated constellationin T2 results in "robustness gain in channels with multipath, SFN, interference..." (for a summary of the improvements see pic below)

A full text of the research paper is available for download from:
https://www.researchgate.net/public...rategic_planning_of_ubiquitous_media_networks

Because of these improvements, there may be instances where reception of T1 signal in fringe areas may be unstable/impossible; but with the same antenna, it may be pic perfect for T2 signal. In this scenario, the same antenna may appear to most people to be better to receive T2 than T1 signal.

This scenario is hard to find in practice though, as there is no concurrent T1 and T2 broadcast.

 

[cybertech]

Thanks guys for the antenna info.
Btw, wonder after 30 June 2019 when SH ceased cable operation, will the broadcast transmission of digital television over cable be cut as well. Currently I am watching FTA digital channels from my current DVB-C USB Tuner decoder connected to cable point. If it still work, then I can save on buying the DVB-T2 USB Tuner.

 

[gregory_choo]

Your comment set me thinking...

DVB-T2 standard has many advances over the T1 technology. For example, the rotated constellationin T2 results in "robustness gain in channels with multipath, SFN, interference..." (for a summary of the improvements see pic below)

A full text of the research paper is available for download from:
https://www.researchgate.net/public...rategic_planning_of_ubiquitous_media_networks

Because of these improvements, there may be instances where reception of T1 signal in fringe areas may be unstable/impossible; but with the same antenna, it may be pic perfect for T2 signal. In this scenario, the same antenna may appear to most people to be better to receive T2 than T1 signal.

This scenario is hard to find in practice though, as there is no concurrent T1 and T2 broadcast.

the difference is in the modulation, coding...., but not the antenna.

in singapore, dvb-t used a single high power transmitter at bukit botak, so the reception at low rise buildings further away from antenna are not so good, flat and appartments need a common antenna installed at roof top.

for dvb-t2 , imda uses a different approach. instead of a high power transmitter, many micro transmitters are installed at all parts of singapore, so the indoor coverage is possible. at the same time, the previous experience - higher is better, bukit timak is better than changi...etc are not valid anymore.

 

[gregory_choo]

Thanks guys for the antenna info.
Btw, wonder after 30 June 2019 when SH ceased cable operation, will the broadcast transmission of digital television over cable be cut as well. Currently I am watching FTA digital channels from my current DVB-C USB Tuner decoder connected to cable point. If it still work, then I can save on buying the DVB-T2 USB Tuner.

no more .

the dvb-t2 set top box is cheap, can get box+antenna easily from qoo10 at less than $30.

The alternatives are low cost chromecast dongle, or "mibox s". With these, you can run toggle on your phone and chromecast the video to TV. Note that chromecast is not the same as phone's casting or mirrorcast, chromecast will not tie up the phone, you can continue to use your phone or even off the power.

 

[cybertech]

no more .

the dvb-t2 set top box is cheap, can get box+antenna easily from qoo10 at less than $30.

The alternatives are low cost chromecast dongle, or "mibox s". With these, you can run toggle on your phone and chromecast the video to TV. Note that chromecast is not the same as phone's casting or mirrorcast, chromecast will not tie up the phone, you can continue to use your phone or even off the power.

Watching those FTA channels mainly on my PC monitors lah. Living room TV mainly for my parents to watch and already on SH fibre TV. I already have 2 android boxes that can watch those FTA channels but what I do usually is watch CH8 n CHU (from current DVB-C Tuner) and Bein Sports on one Android box and TVB(or movies) on another Android box simultaneously