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Nidaamka isgaarsiinta dhijitaalka ah, waxa qaataha helayaa waa wadarta ishaarada la kala qaado iyo qaylada kanaalka. Soo dhawaynta ugu fican ee calaamadaha dhijitaalka ah waxay ku salaysan tahay ixtimaalka ugu yar ee khaladka ah sida heerka "ugu fiican". Khaladaadka lagu tixgaliyay cutubkan waa mid...

Jaantuska 6-6 waa jaantuska xannibaadda nidaamka gudbinta signallada sal-band ee caadiga ah. Waxay inta badan ka kooban tahay shaandhada diraya (soo-saare signalka kanaalka), kanaalka, helitaanka shaandhada iyo go'aanka muunada. Si loo xaqiijiyo shaqada habaysan ee la isku halayn karo oo habaysan, th...

Marka awoodda gudbinta kanaalka jireed ay ka sarreyso baahida hal calaamad, kanaalka waxaa lagu wadaagi karaa calaamado badan, tusaale ahaan, khadka jirridda ee nidaamka taleefoonku wuxuu inta badan leeyahay kumanaan calaamadood oo lagu kala qaado hal fiber ah. Multiplexing waa tignoolajiyada lagu xalliyo sida...

(1) AMI code AMI (Alternative Mark Inversion) Koodhka waa magaca buuxa ee summada beddelka beddelka, xeerkeedu waa in si beddel ah loogu beddelo lambarka farriinta "1" (calaamad) "+1" iyo "-1", halka "0" (calaamad madhan) ayaa weli ah mid aan isbeddelin. Tusaale ahaan...

Marka aynu gudbinayno signalka, hadday tahay ishaarka indhaha ama signalka korontada ama signalka bilaa-waayirka ah, hadii si toos ah la isugu gudbiyo waxa ay u nuglaataa in qaylada la dhex galo, wayna adagtahay in la helo xogta saxda ah meesha ugu dambaysa. Sida loo...

Siyaabaha aasaasiga ah ee habaynta dhijitaalka ah ee binary waa: furaha baaxadda binary (2ASK) - isbeddelka baaxadda ee calaamadda side; Furaha isbeddelka soo noqnoqda ee binary (2FSK) - isbeddelka soo noqnoqda ee calaamadda qaadaha; Fure-is-beddelka wajiga binary (2PSK) - Beddelka wejiga sidaha si...