FHSS Frequency-hopping spread spectrum kanggo pemancar lan panrima link data video nirkabel

A1: Spektrum panyebaran frekuensi-hopping (FHSS) minangka cara ngirim sinyal radio sing ngganti frekuensi operator kanthi cepet ing sawetara frekuensi.

FHSS bakal kedadeyan kanthi otomatis ing pemancar lan panrima bebarengan. FHSS digunakake kanggo nyegah eavesdropping lan gangguan ing pemancar lan panrima video nirkabel jarak adoh.. Nalika frekuensi kerja saiki macet utawa diganggu, pemancar lan panrima medhot lan mlumpat menyang frekuensi kasedhiya sabanjuré kanggo nyambung maneh.

A2:
1. Amarga sinyal kasebut mlumpat menyang pita frekuensi sing beda, Sinyal FHSS tahan banget kanggo interferensi pita sempit.

2. Yen pola frekuensi-hopping ora dingerteni, sinyal angel nyegat.

3. Jamming uga angel yen pola ora dingerteni; yen urutan nyebar ora dingerteni, sinyal mung bisa macet kanggo periode hopping siji.

4. Kanthi campur tangan tithik, Transmisi FHSS bisa nuduhake pita frekuensi karo akeh jinis transmisi konvensional. Sinyal FHSS ngganggu komunikasi pita sempit lan kosok balene.

A3: Ing manajer web UI, mangga pilih kaca advance, sampeyan bisa ndeleng gambar ing ndhuwur.
https://i0.wp.com/ivcan.com/wp-content/uploads/2022/02/UI-Advance.webp

A4:
1. TX900B-2W ndhukung sawetara frekuensi punika 1420 ~ 1530MHz, lan ana bandwidth 110Mb kanggo nggunakake.

2. Pelanggan bisa nyetel bandwidth kerja minangka 1.4M / 3M / 5M / 10M / 20MHz (Nanging, 1.4M/3MHz bisa uga ora cocog kanggo ngirim video). Banjur TX900B-2W bisa digunakake Mode FHSS (Spektrum panyebaran frekuensi-hopping) lan sistem bakal kanthi otomatis milih frekuensi kerja tengah lan bisa nindakake frekuensi hopping (antarane 1420 ~ 1530MHz) sajrone makarya.

3. Pelanggan uga bisa ngrancang nggunakake saluran frekuensi ing kabeh 1420 ~ 1530MHz lan nyetel piranti kasebut uga bisa digunakake ing saluran frekuensi tetep..

4. TX900B-2W ndhukung jarak paling dawa ing 22km.
Kajaba kanggo sawetara frekuensi didhukung lan jarak paling dawa, tampilan fisik, antarmuka, UI, operasi, lan sapanunggalane, TX900B-2W padha karo TX900B-15km-2W sing ana.

5. TX900B-2W mung ndhukung sawetara frekuensi 1420 ~ 1530MHz, ora ndhukung sawetara frekuensi 800MHz lan 2.4GHz.

6. Ana rong versi, TX900B-2W-15km, lan TX900B-2W-22km.

7. Minangka TX900B-2W rentang frekuensi punika 110Mb, dadi yen sampeyan ngonfigurasi bandwidth sing digunakake minangka 10Mb, banjur sampeyan bakal entuk 11 titik kanggo mlumpat.

Transceiver video nirkabel kita nggunakake panyegahan gangguan pilihan frekuensi cerdas.

Pilihan frekuensi cerdas (panyegahan gangguan) teknologi minangka teknologi anti-interferensi anyar, sing bisa kanthi efektif ngindhari gangguan lan nggedhekake linuwih lan stabilitas transmisi nirkabel.

Tombol kanggo pilihan frekuensi cerdas unik kita (panyegahan gangguan) teknologi dumunung ing telung proses utama deteksi gangguan, nggawe keputusan, lan eksekusi switching. Deteksi gangguan nuduhake deteksi wektu nyata gangguan lan gangguan latar mburi ing saben titik frekuensi sajrone komunikasi normal, supaya bisa nyedhiyakake dhukungan dhasar kanggo nggawe keputusan. Pengambilan keputusan rampung kanthi mandiri dening saben simpul, lan frekuensi optimal dipilih adhedhasar kritéria optimalisasi kinerja nampa dhewe. Titik digunakake minangka titik frekuensi panampa; eksekusi ngoper occurs sawise kaputusan milih titik frekuensi optimal anyar, lan proses ngoper ora bakal nimbulaké mundhut data, njamin transmisi data sing stabil lan terus-terusan.

Pilihan frekuensi cerdas unik kita (panyegahan gangguan) teknologi mbisakake saben simpul kanggo independen lan mbosenke milih titik frekuensi optimal beda kanggo jaringan frekuensi beda, supaya bisa ngoptimalake kinerja jaringan sakabèhé lan kanthi efektif ngindhari gangguan.

Mangga dipriksa ing ngisor iki Gambar, wilayah biru iku sinyal efektif, lan garis abang iku gangguan.

FPV VTX is a one-way transmission and cannot support the FHSS frequency automatic hopping function.

FPV VTX is a one-way transmission, which can transmit the video from the aircraft to the ground receiver through the transmitter.

FHSS function, when the user finds that the signal sensitivity is declining or encounters an obstacle, it will notify the transmitter and receiver to modify the frequency at the same time and find a frequency with the least interference for transmission. If only the receiver modifies the frequency without controlling the transmitter to modify the same frequency, the frequency of the transmitter and receiver will be inconsistent and the transmission will be interrupted.

Because of the above requirement of notifying the transmitter to modify the frequency, the FHSS function needs to be based on a two-way transmission system.

Or your FPV VTX can support modifying the frequency function through the serial port. When you need to modify the frequency, the operator sends a preset serial port command from the receiver to the serial port of the transmitter. After receiving this command notification, the transmitter automatically changes to the next frequency point.

This is equivalent to your wireless transmission equipment, which has both a one-way video transmission function and a two-way data transmission function, which is equivalent to your current wireless control system. So whether it supports the serial port to modify the frequency of the transmitter depends on whether your current device supports it.

Our models below support such functionality.
Vcan1776 Vcan 1886