Kuchuluka kwa makanema apawayilesi a digito a DVB-T2: zomwe zikuchitika mu 2025

M’malo mwa kuwulutsa kwa analogi ndi kuwulutsa kwa digito (DTV) pa TV yaku Russia, zidakhala zofunikira kugula ndi kukonza zida zowonjezera. Zida zotumizira chizindikiro chapadziko lapansi ziyenera kusinthidwa pafupipafupi.

DVB-T2 digito wailesi yakanema pafupipafupi mu Russia ndi Moscow

Kugwira ntchito kwa kanema wawayilesi wapadziko lonse lapansi ku Russia kumachitika pama frequency omwe akugwira ntchito mu bandi kuchokera ku 470 – 862 MHz, panjira 21 mpaka 69. Dera la DTV lachigawo limatanthawuza kusankha kwa mtsinje womwe bokosi lapamwamba la digito kapena TV idzakhala. kukonzedwa.

Muzosankha zakusaka pamanja, muyenera kuyika pafupipafupi njira yomwe mukufuna.

Tebulo la zoikamo za TV ndi bokosi lapamwamba lomwe lili ndi ma frequency a digito pa TV.

Zambiri zokhuza kuchuluka kwafupipafupi komanso malo omwe amafikira zigawo zamunthu aliyense zimaperekedwa pamapuNtchitoyi imakupatsani mwayi wodziwikiratu dera lomwe tsambalo linalowera.

Zambiri zamakanema a digito

Kugwira ntchito kwa mayendedwe a digito mu phukusi kumatchedwa multiplex (RTRS). Kukonza kumaphatikizapo kudziwa ma frequency a decimeter wave wave.

RTRS №1-multiplex

Phukusili limapereka njira zapagulu (zaulere) za kanema wawayilesi ndi wailesi. Zambiri zomwe zimafalitsidwa ndi mayendedwe ndizofunika kwambiri pagulu komanso zovomerezedwa ndi Purezidenti wa Russian Federation.
Magawo onse a RTRS No. 1:

• mafunde a decimeter kuchokera 470 mpaka 862 MHz;
• kuwulutsa muyezo DVB-T2;
• kuchuluka kwa kuwulutsa kwa SDTV;
• palibe kubisa.

Mndandanda wamayendedwe ambiri #1:

• Choyamba;
• Russia 1;
• Kufanana;
• NTV;
• chikhalidwe;
• Channel 5;
• Russia 24;
• Carousel;
• OTR;
• TVC;
• Wailesi yaku Russia;
• Lighthouse;
• Vesi FM.

RTRS №2-multiplex

Phukusi la wailesi yakanema ya digito ndi wailesi imaperekedwa kwaulere ndi wogwiritsa ntchito, koma kugwiritsidwa ntchito kolipira ndi kulembetsa ndikothekanso. Zokonda pa RTRS #2:

• kusankha pafupipafupi 470-862 MHz;
• mtundu wa SDTV;
• palibe kubisa;
• DVB-T2 chizindikiro muyezo.

Mndandanda wamayendedwe ambiri #2:

• RenTV;
• Kupulumutsidwa;
• STS;
• Kunyumba;
• TV3;
• Lachisanu;
• Nyenyezi;
• Mtendere;
• TNT;
• Muz TV.

RTRS №3-multiplex

Phukusi loyesera la ma TV limawulutsidwa kudera la Moscow ndi dera la Moscow. Mndandanda woyeserera wa mayendedwe 40 si mndandanda womaliza wovomerezeka. Kuwulutsa kwa paketi kumasinthidwa kukhala 578 MHz.
Mndandanda wamakanema angapo №3:

• Masewera 1;
• Masewera 2;
• Russian buku;
• Russian wogulitsa;
• Russian wapolisi;
• Gulu lankhondo;
• Dziko langa;
• Sayansi 2.0;
• Dziko lapansi;
• Sundress;
• Dziko;
• Zojambulajambula;
• Mbiri;
• Bwalo lachisangalalo;
• NST;
• Amayi;
• Techno 24;
• 24 Doc;
• IQ HD;
• La Minor;
• Comedy TV;
• Wankhondo;
• India TV;
• STV;
• HD Moyo;
• Ma TV ambiri;
• TNT-Comedy;
• masiku 365 TV;
• Beaver;
• telecafe;
• Nthawi;
• Home Cinema;
• Nyimbo Yoyamba;
• euronews;
• Moscow Trust;
• Mpira wathu;
• nkhani za moyo;
• Auto Plus;
• Khitchini TV;
• Kanema wa Amuna.

Multiplex yachitatu ikuyembekezeka kukhazikitsidwa posachedwa m’dziko lonselo.

https://youtu.be/8R-ierscY8w

Lingaliro la DVB-T2 ndi ubwino wake

DVB-T2 ndi chidule cha kuwulutsa kwa digito kanema, pomwe “T” imayimira kufala kwa data pamlengalenga. Kugwiritsa ntchito modula njira za COFDM zowulutsira mumtundu wa HD. Ndi zotheka compress kanema mtsinje mu MPEG-2 mtundu ndi kusamutsa deta mpaka 31 Mb/s. Poyerekeza ndi DVB-T, muyezo watsopano umayambitsa:

• kuwonjezeka kwa njira zambiri;
• kuwongolera magwiridwe antchito a wailesi yakanema wamba;
• kutanthauzira kwakukulu;
• kumasulidwa kwa ma frequency ethereal.

Palibe chovuta pakukhazikitsa ma frequency a digito ndipo ndikosavuta kuchita nokha. Ndikokwanira kugwiritsa ntchito deta yomwe yaperekedwa m’matebulo.