Ongororo Yehunyanzvi uye Mashandisirwo e-Nzira mbiri dzeWay Radio Communication

Two-way radio (inozivikanwawo sewalkie-talkie communication) inzvimbo-ye-kunongedza kana kunanga-ku-multipoint instant wireless communication tekinoroji inoshandiswa zvakanyanya mukuchengetedzwa kweveruzhinji, zvekufambisa, kugadzira maindasitiri, uye zviitiko zvekunze. Chakanyanya kukosha ndechekuti inogonesa-kutaurirana kwezwi nguva pasina kutsamira panharembozha dzenharembozha. Iyo inoratidzirwa nekureruka, yakasimba kupindira kuramba, uye mutengo wakaderera.

Nzira mbiri-dzenzira mbiri dzekutaura neredhiyo dzakanyanya kuenderana nehafu-duplex kana yakazara-duplex modes. Nepakati-duplex mode, mushandisi anodzvanya "Push-kuti-Talk" bhatani (PTT) kutumira chiratidzo. Kana waiburitsa, siginecha inochinja kuti igamuchire modhi, kuve nechokwadi chekuti bato rimwe chete rinogona kutumira pachiteshi chimwe chete panguva. Yakazara-duplex modhi inobvumira mapato ese kutumira uye kugamuchira mameseji ezwi panguva imwe chete, zvakafanana nenhare mbozha, asi kazhinji zvinoda ruzivo rwakakura uye rinowanzo kuwanikwa mumasisitimu ehunyanzvi edhijitari.

Nehunyanzvi, mbiri-maredhiyo anotsamira paVHF (Very High Frequency, 30-300 MHz) uye UHF (Ultra High Frequency, 300-3000 MHz) frequency band. VHF inopa kupinda kwakasimba uye inokodzera nzvimbo dzakavhurika, nepo UHF ichipa epamusoro diffraction kuramba uye inokodzera nharaunda dzemaguta. Digital kutaurirana matekinoroji (akadai seDMR neP25) akaenderera mberi nekuvandudza spectrum kunyatsoita, akatsigirwa encrypted kutapurirana uye masevhisi edatha, uye yakawedzera kuchengetedzeka kwekutaurirana nekushanda.

Mumashandisirwo anoshanda, kuiswa kwe-maredhiyo enzira mbiri kunoda kutariswa kwekuronga chiteshi, kutonga kwemagetsi, uye kusarudzwa kweantenna. Semuyenzaniso, -midziyo yemagetsi inokodzera kufambiswa mberi-kurebesa, ukuwo midziyo yemagetsi yakaderera{4}yakakodzera nzendo diki uye-yakakwirira. Pamusoro pazvo, vanodzokorora vanokwanisa kuwedzera kuvhakacha nekugamuchira nekutumira masaini, zvichiita kuti{7}}tikurukurwe munharaunda.

Muchidimbu, maredhiyo maviri-anoramba asingadzokerike mukupindura kwechimbichimbi uye kubatira pamwe kwechikwata nekuda kwekuvimbika uye kuchinjika. Nekubatanidza matekinoroji edhijitari, hunhu hwavo hwekutaurirana uye kushanda kwavo kuchavandudzwa kuti risangane nezvinodiwa zvakasiyana zvekutaurirana kwemazuva ano.