Abahlinzeki Bemakrofoni Abangenazintambo Abakabili Abachwepheshe bephrojekthi ye-KTV
Izinkomba zesistimu
Ibanga lefrikhwensi yomsakazo: 645.05-695.05MHz (Ishaneli A: 645-665, isiteshi B: 665-695)
Umkhawulokudonsa osebenzisekayo: 30MHz isiteshi ngasinye (60MHz isiyonke)
Indlela yokuguquguquka: Inombolo yesiteshi se-FM: ifrikhwensi ezenzakalelayo ye-infrared ehambisana namashaneli angama-200
Izinga lokushisa elisebenzayo: ku-18 degrees Celsius kuya ku-50 degrees Celsius
Indlela ye-squelch: ukutholwa komsindo okuzenzakalelayo kanye nekhodi ye-ID yedijithali
I-offset: 45KHz
Ibanga elinamandla: >110dB
Impendulo yomsindo: 60Hz-18KHz
Isilinganiso esiphelele sesignali-kuya-kumsindo: >105dB
Ukuhlanekezela okuphelele: <0.5%
Izinkomba zomamukeli:
Imodi yokwamukela: i-superheterodyne yokuguqulwa kabili, ukwamukela ukuhlukahluka kweqiniso okukabili
Imodi ye-Oscillation: Ilophu evaliwe yesigaba se-PLL
Imvamisa ephakathi: imvamisa yokuqala ephakathi: 110MHz,
Imvamisa yesibili emaphakathi: 10.7MHz
Isixhumi esibonakalayo se-antenna: Isihlalo se-TNC
Imodi yokubonisa: I-LCD
Ukuzwela: -100dBm (40dB S/N)
Ukucindezela okungamanga: > 80dB
Okukhipha umsindo:
Okungalinganisiwe: +4dB(1.25V)/5KΩ
Ibhalansi: +10dB(1.5V)/600Ω
I-voltage yokuphakelwa kwamandla: DC12V
Ukunikezwa kwamandla okwamanje: 450mA
Izinkomba zokudlulisa: (ukwethulwa okungu-908)
Imodi ye-Oscillation: Ilophu evaliwe yesigaba se-PLL
Amandla okukhiphayo: 3dBm-10dBm (LO/HI ukuguqulwa)
Amabhethri: 2x“1.5V No. 5” amabhethri
Okwamanje: <100mA(HF), <80mA(LF)
Isikhathi sokusebenzisa (ibhethri le-alkaline): cishe amahora angu-8 ngamandla aphezulu
Ukungasebenzi kahleukwelashwa
izimpawu zokungasebenzi kahle | Ukungasebenzi kahleimbangela |
Ayikho inkomba kumamukeli nesidlulisi | Awekho amandla kusithumeli, amandla owamukelayo awaxhumekile kahle |
Umamukeli akanaso isignali ye-RF | Amabhendi efrikhwensi yomamukeli nama-transmitter ahlukile noma angaphandle kwebanga elamukelekayo |
Kukhona isignali yefrikhwensi yomsakazo, kodwa ayikho isignali yomsindo | Imakrofoni yokudlulisela ayixhunyiwe noma i-squelch yomamukeli nayo nayoejulile |
Ukungasebenzi kahle kwesekethe yokuqondisa komsindo | |
Isetha imodi ethulile | |
Umsindo wangemuva wesignali yomsindo mkhulu kakhulu | Ukuchezuka kwefrikhwensi yokudlulisa kuncane kakhulu, thola okukhipha ugesi Izinga liphansi, Noma kukhona isignali yokuphazamiseka |
Ukuhlanekezelwa kwesignali yomsindo | Dlulisaterukuchezuka kwefrikhwensi yokushintshashintsha nakho nakhoenkulu, umamukeli ophumayo Izinga likagesi likhulu kakhulu |
Ibanga lokusebenzisa lifushane, isignali ayizinzile | Amandla okusetha isidlulisi aphansi, futhi i-squelch yomamukeli ijule kakhulu. Ukusetha okungalungile kwe-antenna yomamukeli kanye nokuphazamiseka kwebhethri okuqinile nxazonke. |