Ungakanani imvamisa umehluko phakathi kwesigaba se-V nesigaba se-U semakrofoni engenantambo U-segment ne-V-segment basebenzisa amaza e-transmit erediyo ahlukile. Onke angamabhendi emisakazo we-amateur. Ibhendi ye-UHF iyi-band ephezulu kakhulu enemvamisa yesikhungo engu-145 MHz nebanga lemvamisa eliphakathi kuka-144.000-145.800 MHz, elisetshenziswa njengebhendi yemvamisa ezinikele yezinsizakalo ze-amateur. Ibhendi ye-VHF ibhendi yemvamisa ephezulu enemvamisa yesikhungo engu-435 MHz. Izigaba ezimbili: 430.000-435.000 kanye ne-438.000-440.000 MHz, ezisetshenziswa njengesevisi yesibili yensizakalo ye-amateur kanye nokwabelana ngama-band frequency namanye amasevisi. Ngaphandle komehluko, awukho umbuzo wokuthi yikuphi okungcono. Kuphela nje ukuthi amabhendi amarobhothi ahlukahlukene asetshenziswa ngokuya ngezikhathi ezehlukene zokusetshenziswa nezidingo. I-se-se ne-V-segment incike kunhloboni yemvelo oyisebenzisayo. Kufanele kuthiwe ngayinye inezinzuzo zayo. I-U-segment ngokwayo ine-bandwidth enkulu, i-U-segment ingeyemvamisa ephezulu, ne-V-segment frequency frequency. Manje ngokuthuthukiswa kobuchwepheshe, ukucubungula umsindo kuya ngokuya ngokuya ngokuya ngokuya ngokuya ngokuya ngokuya kwaziwa ngobuchwepheshe, kudinga ukukhetha amabanga amade kwe-V-band, ne-U-band yezidingo zekhwalithi yomsindo. Lawa mabhande wamvamisa amabili asetshenziselwa imakrofoni engenazintambo anezinzuzo nezinkinga zawo. Lokhu kunqunywa ngumsebenzisi webhendi yokuvama, izici zomzimba zebhendi yokuvama, nemikhawulo yokulungiswa yebhendi lokuvama.
Amasethi amabili wemakrofoni eyodwa kuya kwamabili anezikhawu ezahlukahlukene. Imakrofoni ehambisanayo ibuye ihlukaniswe ngamabhendi anemvamisa ephansi kanye namafrikhwensi aphezulu futhi ayinakuxubeka. Le microphone ye-U-band ivame ukuhlukaniswa ngamaqembu ama-frequency 3, imvamisa i-680-740MZ. Lesi yisigaba esisodwa. I-740-800M yisigaba esiphakathi, i-800-860 noma i-890M yisigaba esiphakeme. Imibhobho nayo ihlukaniswe izigaba ezintathu. Iyunithi yami ithenge amasethi angama-26 emikhiqizo emithathu yemibhobho engenantambo ye-U, esebenza kakhulu kulezi zingxenye ezintathu ze-U. In . Ngokuqondene nama-frequency frequency band, udinga ukuwahlukanisa kuphela bese ubhanqa amabhendi amaza. Indlela yokuvama ephezulu yazo zonke iziteshi iyefana ncamashi, awukho umehluko, abanye banemvamisa ye-infrared othomathikhi, ukusebenza kokhiye owodwa. Lolu hlobo lwemakrofoni nolwamukelayo lungasethelwa ukubonisa izibonisi ezimbili zenombolo yesiteshi nobuningi lapho kusethwa. Uma ulungisa imvamisa yokubonisa, kulula kakhulu ukuxhumanisa imvamisa. Uma imvamisa ifana, kulungile. Akunasidingo sokucabangela inombolo yesiteshi. Enye inkinga ukuthi inani le-decibel liyashintsha. Lapho ivolumu yomsindo yemibhobho emibili yehlukile, hlola ukuthi ngabe kubangelwa ukungahambelani kwenombolo ye-decibel.
Isikhathi Iposi: Dec-25-2020