Abahlinzeki Bemakrofoni Abangenazintambo Abakabili Abachwepheshe bephrojekthi ye-KTV

Incazelo emfushane:


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

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.


  • Okwedlule:
  • Olandelayo:

  • Bhala umyalezo wakho lapha futhi usithumelele wona