ISDB-T in Sri Lanka

[Lasanthajn]

ජපන්නු මේකට අවුරුදු ගානක ඉදන් ට්‍රයි කලා.. අපේ හරක් දන්නෙ නෑ මිට වඩා ෙහාද තිෙයනවා කියල.

https://web.telegram.org/a/#-1001322530396_174691

https://web.telegram.org/a/#-1001322530396_174693

https://web.telegram.org/a/#-1001322530396_174695

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------ Post added on Nov 25, 2025 at 9:02 PM

 

[albuz]

thawat kunugodak

 

[Amith0424]

isdbt ජපන්නුන්ගෙ උගුලක්. දැන් DVB-T2 යන්න ඕන. ඒකත් දැන් කාලයක් ගිහින්.
ගල් යුගේ ලංකාවෙ broadcasting TRCL තියෙන්නෙ.

 

[TechnWeb]

loku deyak. Frequency Free wenawa. 700 MHz. 5G dunnaki eken

 

[imback2008]

Live TV balana eka nathara karawanna oni kohoma hari

 

[6h057]

isdbt ජපන්නුන්ගෙ උගුලක්. දැන් DVB-T2 යන්න ඕන. ඒකත් දැන් කාලයක් ගිහින්.
ගල් යුගේ ලංකාවෙ broadcasting TRCL තියෙන්නෙ.

මම හිතන්නේ mobile TV devices target කරලා තමයි ISDB-T එක ගේන්න හදන්නේ. 1-Seg එක හින්දා.

 

[Don GasCan]

ගොං නිව්ස් ගොං ටෙලිඩ්‍රාමා බලන්න නේ මේ ඔක්කම

 

[2osama]

DVB T2 thama hariyanne

 

[olu bakka]

Live TV balana eka nathara karawanna oni kohoma hari

E mktd?

 

[Al Baik]

What Might Be Best for Sri Lanka (My Analysis)​

Given Sri Lanka’s specific context, here’s what seems most reasonable and which way I lean — plus the trade-offs to watch out for.

Why ISDB-T Could Be the Better Choice Now​

• Support from Japan / JICA: The current DTTB push is backed by Japanese technical aid, which strongly favors ISDB-T. LNW Lanka News Web+1
• Mobile Reception: ISDB-T supports mobile/handheld reception well, which is valuable in Sri Lanka, given the high mobile phone penetration. Ministry of Foreign Affairs
• Lower Power for Transmitters: According to the Ministry of Foreign Affairs, ISDB-T could reduce electricity usage for broadcasting – good for sustainability/cost. Ministry of Foreign Affairs
• Data Broadcasting Potential: ISDB-T’s “data broadcast” capability can be used for social services (weather, education, emergencies) — a useful public-good aspect. Ministry of Foreign Affairs

Risks / Challenges with ISDB-T​

• Coverage Questions: Some sources suggest ISDB-T plans may not yet cover all of Sri Lanka effectively. DVB
• Receiver Cost & Ecosystem: ISDB-T receivers (set-top boxes, TVs) may not be as cheap or widespread as DVB-T2 ones globally. Broadcasters and consumers may face higher costs.
• Switching from Past Plans: Because earlier technical planning favored DVB-T2, some existing infrastructure or investment might be mismatched, creating friction or inefficiency.

Why DVB-T2 Could Still Make Strong Sense​

• Efficiency & Capacity: DVB-T2 is very spectrum-efficient. The 2012 roadmap said it's robust and flexible. ITU
• Mature Ecosystem: Globally, DVB-T2 is very common, so hardware / STBs / receiver chips may be cheaper and more available.
• Broadcaster Alignment: Some local broadcasters and engineers prefer DVB-T2, potentially reducing resistance on the industry side. Echelon

Risks with DVB-T2 (in Sri Lankan Context)​

• Less Mobile-TV Friendly: While DVB-T2 is great for fixed TVs, it’s not as strong for mobile/handheld reception unless you use a special version.
• Less External Aid (for DTTB): The current DTTB push seems to be strongly tied to Japanese technical/financial cooperation, which is aligned with ISDB-T.
• Power Use / Cost Trade-offs: Depending on transmitter design, cost savings might not be as high as with ISDB-T in certain deployment plans.

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My Verdict​

• Given the current political and technical momentum, ISDB-T is likely to win out in Sri Lanka for now.
• But DVB-T2 is not a dead option; it still makes a lot of sense technically, especially for high-capacity, fixed-location broadcasting.
• If I were advising the government or a broadcaster right now, I’d lean into ISDB-T while negotiating for parts of the system (especially infrastructure) to be DVB-T2-compatible in the future — so you don’t get locked into one path too rigidly.
  
  
  
  

ChatGPT

 

[virantha]

DVB-T2 eke channel godak pennana puluwan habai hondata signal naththan mukuth penne naha.​

ISDB-T eke channel adui habai adu signal walinuth hondata wada karanawa. mobile phone, portable tv wage device walath wada.​

Kohomath lankawe TV channel wadiya balanne nathi nisa owata hena antenna gahan dangalanna baha, onama unoth match ekak wage balanna podi arial ekak gahuwama penawa nam eka thama watinne.​

inbuilt DVB-T2 awe samahara smart or loku ganan wala TV walata witharai, 55" pawa normal LED TV wala thiyenne analog tuner eka witharai.​

ithin DVB-T2 dunnath kohomdath lankawe godak unta wenama receiver ganna wenawa.​

Lokema dan streaming walata maru wegana yanne mona technology eken dunnath owa okkoma dan obsolete.

 

[Al Baik]

DVB-T2 eke channel godak pennana puluwan habai hondata signal naththan mukuth penne naha.​

ISDB-T eke channel adui habai adu signal walinuth hondata wada karanawa. mobile phone, portable tv wage device walath wada.​

Kohomath lankawe TV channel wadiya balanne nathi nisa owata hena antenna gahan dangalanna baha, onama unoth match ekak wage balanna podi arial ekak gahuwama penawa nam eka thama watinne.​

inbuilt DVB-T2 awe loku ganan wala TV walata witharai, 42" pawa normal LED TV wala thiyenne analog tuner eka witharai.​

ithin DVB-T2 dunnath kohomdath lankawe godak unta wenama receiver ganna wenawa.​

Ow.. Lankawata Hariyanne ISDB-T eka...
Danatamath TV LANKA eken DVB-T2 Eken Broadcast karanwa Channels...

 

[virantha]

Ow.. Lankawata Hariyanne ISDB-T eka...
Danatamath TV LANKA eken DVB-T2 Eken Broadcast karanwa Channels...

anika japana aduwata loan deela technical assistance deela okoma karala denawa, DVB gahanna kawruth support naha gov eka athin wiyadam karan okkoma kara ganna ona.

 

[Al Baik]

anika japana aduwata loan deela technical assistance deela okoma karala denawa, DVB gahanna kawruth support naha gov eka athin wiyadam karan okkoma kara ganna ona.

Ow... Heta Labena Kukula Balan innawata Wadaa Ada Labena Biththare Hondai Kiyala Gannai Thiyenne..

 

[2osama]

anika japana aduwata loan deela technical assistance deela okoma karala denawa, DVB gahanna kawruth support naha gov eka athin wiyadam karan okkoma kara ganna ona.

Japan Aduwata Loan dunna wage nevey Apita TV Set tika genwaganna wenneth Japan walin
TV ekaka Ganan Aehuwama TV balana eka epa wyi

 

[Edward Kenway]

සැහෙන කාලෙකට කලින් ආණ්ඩුවෙන් DVB-T වලට මාරු වෙනවා කියල කිව්වා මතකයි

කොහොමත් දැන් Terrestrial broadcasting outdated.

 

[Omega_Jay]

බම්පි

 

[virantha]

Japan Aduwata Loan dunna wage nevey Apita TV Set tika genwaganna wenneth Japan walin
TV ekaka Ganan Aehuwama TV balana eka epa wyi

thiyana ona TV ekakata one time Rs 3000 ka wage receiver ekak ganna wenne. DVB-T dunnath lankawe normal LED TV use karana 95% kata receiver ekak ganna wenawa.
Wena option kohomath Rs 20,000 deela freesat ganna, naththe monthly gewanna peotv, dialogtv gannawata wada kohmath labai.

 

[2osama]

thiyana ona TV ekakata one time Rs 3000 ka wage receiver ekak ganna wenne. DVB-T dunnath lankawe normal LED TV use karana 95% kata receiver ekak ganna wenawa.
Wena option kohomath Rs 20,000 deela freesat ganna, naththe monthly gewanna peotv, dialogtv gannawata wada kohmath labai.

DVB-T Nam den Godak Ratawal wala TV eke Built In enava Lankawata aapu aluth TV godak welawata Digital TV thiyenava

ISBD-T Built in Apu TV dekala neha
Digital TV Receiver pawicchi karanava kiyanne yal penapu wedak anith eka karadarayi Remote dekak pawicchi karanna wenava

 

[asbestos]

Digital TV Receiver pawicchi karanava kiyanne yal penapu wedak anith eka karadarayi Remote dekak pawicchi karanna wenava

ඕකට විරෝදයක් එයි එහෙනම්