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FMUSER RDS-A Encoder Yowonetsedwa pa Msonkhano wa RDS

RDS-A Encoder

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Kwa zaka pafupifupi makumi atatu wailesi ya Radio Data System (RDS) ya digito ya FM yakhala ikuwapatsa wailesi ya FM luso lotumiza uthenga kwa owerenga. Kutukuka ku Europe, RDS sinachedwe kugwira ku US poyamba, koma kuyambitsidwa kwa ma wayilesi a digito kumayambiriro kwa 2000 kunalengezanso chidwi pakugwiritsidwa ntchito kwa RDS kupereka mutu wa nyimbo ndi zojambulajambula komanso zokhudzana ndi kuchuluka kwa magalimoto ku RDS Olandila. Akuyerekeza kuti pakadali pano pali ma wayilesi opitilira 5 biliyoni a RDS padziko lonse lapansi.

Ngakhale ndizothandiza kwambiri, chizindikiro cha RDS ndichoperewera pamawonekedwe, ndipo ma RDS Standards (IEC 62106 ndi NRSC-4-B) akuphatikizapo zinthu zingapo zomwe zidatha ndipo sizikufunikanso. Poganizira izi, bungwe la RDS, gulu loyang'anira miyezo yaku Europe lomwe limayang'anira ntchito yoyambira ndikukonzanso mtundu wa IEC wa Standard, lidagwirizana pamsonkhano wawo wapachaka mu Julayi 2014 kuti liyambe kuganizira zosintha za RDS kuti akadathetsa izi. Msonkhano wotsatila kuti tikambirane za kupititsa patsogolo kotchedwa "RDS2" ku Budapest mu Novembala 2014 komwe kunapangitsa "chikalata chotheka" chofotokozera dongosolo la RDS2.

Msonkhano wa RDS unachita msonkhano wawo wapachaka cha 2015, ndipo dongosolo la RDS2 lowonetsedwa. Kupitilira apo, ataganizira moyenera phindu lomwe dongosolo lino lipanga, RDS Forum idapanga Gulu Logwira ntchito ndi cholinga chokonzanso RDS Standard kuti iphatikizire RDS2. Kulongosola mwachidule kwa RDS2 kwaperekedwa apa:

  • RDS2 imapereka kuthekera koperekera yaying'ono, ziwiri kapena zitatu zowonjezera pamodzi, ndipo zofanana mu kapangidwe kake, kazembe wamasiye a RDS. Pomwe cholowa cholumikizidwa ku magawo 57 chiri pa 66.5 kHz (mkati mwa FM base), magwiridwe atatuwo atsopanowo ali pa 71.25, 76 ndi 57 kHz (monga momwe adalowera ndi 19 kHz, izi zatsopano zatsopano ndizomwe zimachokera pa woyendetsa 2 kHz) . Chiwonetsero chomwe chili pansipa ndi chiwembu chowoneka bwino cha a RDS ndi a RDS19 komanso kamvekedwe ka ndege ka XNUMX kHz (chiwembuchi ndichokera ku dongosolo lomwe lasonyezedwera ku RDS Forum);
  • mawonekedwe a rds2Kapangidwe kamakonzedwe ka RDS2 kanapangidwa ndi Attilla Ladanyi, T&C Holdings (Germany) ndi Peter Jako, wa ku Hungary Radio. Zida zotumizira ma demo zomwe zimagwiritsidwa ntchito ndikuwonetsedwa pa Foramu ya chaka chino zakonzedwa ndi Allen Hartle ndi Seth Stroh, (USA), ndipo zimakhazikitsidwa ndi nsanja ya "JumpGate2" ya Jump3Go; zida zolandirira alendo ndizopangidwa ndi Hendrik van der Ploeg, Catenaand Joop Beunders, Macbe (Netherlands). Chithunzi cha makonzedwe akuwonetsedwa pansipa. Dziwani kuti uku kunali kufalitsa kotsika kwa “mphamvu yotsika”.mayeso a rds2
  • Subrriers zatsopano za RDS2 zidzagwiritsidwa ntchito kokha kufalitsa chidziwitso cha "Open Data application" (ODA). Zomwe zidakhazikitsidwa kale ngati gawo la mtundu wa RDS, ma ODAs amagwiritsidwa ntchito kuthandiza ntchito zosiyanasiyana, ndipo ndi njira yayikulu yomwe ntchito zatsopano zimagwirira ntchito RDS. Popeza zigawo zatsopano zidzamasulidwa kufalitsa mitundu ya "zikuluzikulu" za data ya RDS monga manambala a Program Information (PI) ndi Program Service (PS), kuchuluka kwazomwe zikuwonetsedwa ndi chizindikiro cha RDS2 (cha "kulipirira") dongosolo la maulendo 10 mpaka 20 (kapena kupitirirapo) kwa omwe akupezeka ndi chida chaching'ono cha RDS chokha.
  • Kuyerekeza kwa kuchuluka kwa data kumaperekedwa pansipa yomwe ili pansipa, pomwe milandu itatu ikufanizidwa: Nkhani 0 ikuwonetsa kuchuluka (kogwira ntchito pang'ono) ya cholowera cha RAS pomwe 10% ya zolipira zimagwiritsidwa ntchito pofalitsa data ya ODA (iyi ndi gawo mawonekedwe azomwe amagwiritsidwa ntchito masiku ano; Mlandu wa 1 umayimilanso chiphaso cha RAS koma pano ndi ndalama 70% ya ODA, zomwe zikuwonetsa kuchuluka kwa malipiro olipira ODA pogwiritsa ntchito chizindikiro cha lefa la RDS; ndipo pamapeto pake, Case 3 chikuwonetsa kusintha kwatsopano pamphamvu ya ODA yolipira 30 pomwe mabizinesi onse atatu a RDS2 amagwiritsidwa ntchito kunyamula deta ya ODA 100 (osaganizira za ODA pazoyang'anira cholowa; iyi ndi njira yogwiritsidwa ntchito kwa RDS2). Pa tebulo ili, "STREAM 0" amatanthauza kutsitsa komwe kumagwiritsidwa ntchito kusinthitsa cholowera cha RDS pomwe "STREAMS_1-3" amatanthauzira mitsinje ya zosintha maulendo atatu a RDS2.
  • rds2-tebulo-1
  • Zina mwa mapulogalamu atsopano omwe akufuna kuti athandizidwe ndi RDS2 ndi monga kuphatikiza chizindikiro cha station ndi kugwiritsa ntchito mawonekedwe a UTF-8 omwe amathandizira zingwe zazitali za Radio Text ndi Program Service. Pakadali pano, izi sizigwiritsidwa ntchito ndi RDS chifukwa cha kuchepa kwa kachitidwe komwe kamakhala monga zikuwonetsedwa ndi milandu yomwe ikuwonetsedwa patebulopo.

    Tikamaliza chiwonetsero chazopambana komanso mamembala a RDS Forum mchigwirizano kuti RDS2 iyenera kuphatikizidwa mu Standard, tsopano ndiudindo wa RDS Forum Working Gulu yopanga tsatanetsatane watsatanetsatane wa RDS2, komanso kuwonjezera kuzindikira magawo omwe achotsedwa mu Miyezo yomwe ilipo omwe atha kuthetsedwa. Director wamkulu wa NAB, Advanced Engineering David Layer, yemwe adatenga nawo gawo pamsonkhano wa chaka chino wa RDS monga cholumikizira cha National Radio Systems Committee (NRSC, mothandizidwa ndi NAB komanso Consumer Electronics Association), atenga nawo mbali pa RDS Forum Working Gulu , idzagwira ntchito kuti zitsimikizire kuti zikufanana ndi European Standard yosinthidwa ndi mtundu wa NRSC wa RDS Standard (NRSC-4-B, United States RBDS Standard).

Kufanana ndi ntchito yachitukuko cha Miyezo, bungwe la RDS likufuna kuyesetsa kudziwa "ntchito zakupha" za RDS2, ndikuzindikiritsa othandizira opanga chip ndi olandila chidwi omwe akufuna kupanga zida zomwe zizithandizira dongosolo la RDS. Kufalikira kumakonzedweranso otsatsa kuti awadziwitse za ntchitoyi, komanso kuti awone momwe angawathandizire komanso kutenga nawo mbali pakukonza mfundo komanso momwe ntchito zikuyendera.

FMUSER RDS-A Encoder idzawonetsedwa mu 2018 posachedwa.

Siyani Mumakonda

Mayankho a 2

  1. Jon 2018/08/20 nthawi ya 16:46:40

    kodi mukudziwa kuchuluka kwa magalimoto omwe amathandizidwa ndi RDS ku United States?

  2. StereoHörer 2019/09/06 nthawi ya 06:19:03

    Ist RDS2 für ECHTE OIRT Freqenzen (komanso zB 66,17; 67,94; 71,45; 72,38 MHz) und auch solche mit dem PolarModulations-Stereo-Verfahren (Nicht Pilotton!) Ndiwendbar?