FHSS Frequency-hopping no te mau hoho'a video aita e niuniu afa'ifa'i e te afata apo parau
How does FHSS work on the drone wireless video transmitter and receiver?
FHSS is an automatic frequency modulation technology. We widely used FHSS in wireless video data transmission of drones. Because the drone’s wireless link is often subject to signal interference.
I roto i teie video, this frequency point shows the current signal strength.
Te 1365 we see is the current signal working frequency point of our wireless transmission equipment.
Why does this frequency go here?
Because there are other signals on the right that are interfering. It will run automatically.
If the signal receives interference again, it runs away again, choosing the frequency with the least interference.
This process is meant to avoid interference. We also call it the FHSS function.
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Drone mesh wireless video data link 150-200km longe-range centerless ad hoc network transceiver -
Drone Link for Long-range Video Radio Telemetry Wireless transmission i rotopu i te mau uaV e te pû hi'opo'araa i te fenua -
22km wireless video data RC control link for ip ethernet camera transmitter and receiver fhss Vcan1806
Q1: What is the FHSS Frequency-hopping spread spectrum?
A1: Te mau mana'o tauturu no te haapiiraa (FSS) is a method of transmitting radio signals that involves rapidly changing the carrier frequency among a wide range of frequencies.
FHSS will occur automatically on both the transmitter and receiver at the same time. FHSS is used to prevent eavesdropping and interference on the long-range wireless video transmitter and receiver. When the current working frequency is jammed or interfered with, the transmitter and receiver disconnect and hop to the next available frequency to reconnect.
Q2: Why do you need the FHSS function?
A2:
1. Because the signal hops to a different frequency band, FHSS signals are highly resistant to narrow-band interference.
2. If the frequency-hopping pattern is unknown, signals are difficult to intercept.
3. Jamming is also difficult if the pattern is unknown; if the spreading sequence is unknown, the signal can only be jammed for a single hopping period.
4. With minimal mutual interference, FHSS transmissions can share a frequency band with many types of conventional transmissions. FHSS signals interfere in narrow-band communications and vice versa.
Q3: How to set the FHSS at your wireless video data transmitter and receiver?
A3: At the web manager UI, please choose the advance page, you can see the above picture.
https://i0.wp.com/ivcan.com/wp-content/uploads/2022/02/UI-Advance.webp
Q4: 7 tips you should know before you choose a wireless video transmitter and receiver with FHSS function.
A4:
1. TX900B-2W supports the frequency range is 1420~1530MHz, and there is 110Mb bandwidth to use.
2. The customer can set the working bandwidth as 1.4M/3M/5M/10M/20MHz (Tera ra, 1.4M/3MHz may not be suited for video transmitting). Then TX900B-2W can work in FHSS mode (Te mau mana'o tauturu no te haapiiraa) and the system will automatically select the central working frequency and may do frequency hopping (between 1420~1530MHz) during its working.
3. Customers can also plan to use the frequency channels in the whole 1420~1530MHz and set the device to work in the fixed frequency channels too.
4. TX900B-2W supports the longest distance at 22km.
Except for the frequency range supported and the longest distance, the physical appearance, Vauvauraa, UI, operation, e te vai atu ra, the TX900B-2W is the same as the existing TX900B-15km-2W.
5. TX900B-2W only support a frequency range is 1420~1530MHz, it does not support 800MHz and 2.4GHz frequency range.
6. There are two versions, TX900B-2W-15km, and TX900B-2W-22km.
7. As the TX900B-2W frequency range is 110Mb, so if you config the working bandwidth as 10Mb, then you will get 11 points to hopping.
T5: What is the working principle of your FHSS?
Our wireless video transceiver adopts intelligent frequency selection-interference avoidance.
Intelligent frequency selection (interference avoidance) technology is a new anti-interference technology, which can effectively avoid interference and maximize the reliability and stability of wireless transmission.
The key to our unique intelligent frequency selection (interference avoidance) technology lies in the three major processes of interference detection, decision-making, and switching execution. Interference detection refers to real-time detection of interference and background noise at each frequency point during normal communication, so as to provide basic support for decision-making. The decision-making is completed independently by each node, and the optimal frequency is selected based on the criterion of optimizing its own receiving performance. The point is used as the receiving frequency point; the switching execution occurs after the decision selects a new optimal frequency point, and the switching process will not cause data loss, ensuring stable and continuous data transmission.
Our unique intelligent frequency selection (disturbance avoidance) technology enables each node to independently and dynamically select different optimal frequency points for different frequency networking, so as to optimize the overall network performance and effectively avoid interference.
A hi'o i te hoho'a i raro nei, the blue area is the effective signal, e te the red line is interference. 
T6: Does your FPV VTX support the FHSS frequency automatic jumping function to avoid interference?
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 Vcan1886
U: Do you have a video data link as per the below requirement?
The required distance is 50 mau kilometera, e te ou'au-noa-raa i te mauhaa uira apî (jumping over 1,000 times in one second), ideally above 6Ghz (others can be considered, the most important thing is frequency hopping technology), and it is also necessary to transmit data, hio, and protect the remote control channel, preferably A set of data links (transmitter + afata apo parau + antenna) using frequency hopping technology (FSS)
iVcan Reply: Aita, The frequency is only 1.4G, the working frequency for 6Ghz needs custom development.
U: Do you have any optional model to support the FHSS Frequency-hopping spread spectrum?
In the below picture, you can see that there are 12 points frequency ready for FHSS.
Real-time interference detection function
The products that support FHSS
Drone Video Transmitter support FHSS
Radio Telemetry support FHSS
Hoho'a video hopea no te hoho'a video Long-range Wirless Video Transmitter and Receiver
2TUHAA PURERAA NO TE PO'IPO'I MAHANA MAA 27 NO ATOPA 2012
Hopea 110kilometera hoho'a video no te drone Long-range Wirless Video Transmitter and Receiver
Te mau hoho'a video e te mau hoho'a video no ni'a i te niuniu afa'ifa'i i roto i te paturaa i te hoê fare e ere i te mea ite-mata-hia
65 KM drone UAV e tere ra na ni'a i te manureva Test Wireless Video Transmission
65 KM drone UAV e tere ra na ni'a i te manureva Test Wireless Video Transmission
1.5Te mau Mana'o Tauturu no te Haapiiraa e te A, 10-20-30km LOS air to ground wireless video transmitter receiver transmission
COFDM-912T NLOS (aita e reni no te hi'oraa) 1.5Te tamataraa mau i roto i te oire, Te mau mana'o tauturu no te, te mau tumu raau e te mau purumu
Web Device Management UI for UAV wireless video link transmitter transmission by IP Net camera
Cheapest CVBS RCA 720P Wireless Video Transmitter + 1080Te patururaa i te feia rave ohipa 128 faaîraa
COFDM-912T I roto i te mau vahi fifi o te oire, Te pereoo uira i roto i te pereoo, Te feia rave ohipa i roto i te fare
E tauturu rahi ta te matini roro uira Wireless e te paruai na'ina'i o te afata teata i ni'a i te mau ponao puai
TUHAA PURERAA NO TE PO'IPO'I MAHANA MAA |
Haponoraa atea
Te hi'opoaraa i te manureva
Transmitter Video Input
Te ravea no te hapono i te mau niuniu uira
Te haafifiraa e te ite - mata - raa
Te mau nota e te mau hoho'a
Transmission Carrier
Arata'iraa no te mau haamaramaramaraa
Antenna
Te mau parau no ni'a i te mau hoho'a video e te afata teata
Te vai nei i roto i ta tatou mau matini haapurororaa video teie mau huru hoho'a video: HDMI 1080P e 4K HDMI, PENE 20, SDI, AHD, IP Ethernet, BNC, e aore râ, a parau mai ia matou eaha te huru ta oe e hinaaro, e taui to matou taata hamani ino no te pahono i ta oe aniraa.
E nehenehe to tatou atearaa e faatanohia na roto i te faarahiraa i te uira. I teie taime, te mau mea faufaa roa a'e, o te 15kilometera, 30kilometera, 50kilometera, 80kilometera, 100kilometera , e 150km, tei te huru o te mau hinaaro o te mau hoani.
Oia mau, te atearaa i tabulahia i ni'a nei tei roto paatoa ïa i te TUHAA PURERAA NO TE PO'IPO'I MAHANA MAA |. Mai te mea te vai ra te mau fifi i rotopu i te taata horo'a e te taata farii, NLOS (te taata e ere i te melo no te Ekalesia), ua faaiti-roa-hia te atearaa o te tere, 1km e aore râ 2km ana'e, tei te huru ïa o te numera o te mau fifi i rotopu i te mau taata e te mau mea e haaati ra ia tatou.
Hoê noa iho rave'a te mau rave'a, E nehenehe noa ta tatou e haapuroro e e faauta uira mai i te video e aore râ te mau haamaramaramaraa mai roto mai i te matini afa'ifa'i video aita e niuniu afa'ifa'i i te taata e farii ra i te hoê pae, e eita ta tatou e nehenehe e faauta uira mai i te video e aore râ te mau haamaramaramaraa mai roto mai i te afata apo parau i te taata horo'a. E parau-atoa-hia te reira te simplex.
Piti pae te auraa ra,, Eita ta tatou e nehenehe noa e faauta uira mai i te video e aore râ te mau haamaramaramaraa mai roto mai i ta tatou niuniu afa'ifa'i i te taata apo parau, e nehenehe atoa râ ta tatou e faauta uira mai i te video e aore râ te mau haamaramaramaraa mai roto mai i te afata apo parau i te taata horo'a. E tano maitai te reira no te mau tâpûraa. Eita ta outou e nehenehe e mata'ita'i noa i te hoho'a video mau tei patahia na roto mai i te mau hoho'a video, tera râ, a faauta uira atoa i te faaueraa ia hi'opo'a i te matini e aore râ, i te faaueraa ia hi'opo'a i te pata hoho'a PTZ no te faatano i te reni i ni'a i te matini roro uira. E nehenehe te reira e ohipa i te hoê â taime. Ua topa-atoa-hia teie huru i'oa afa-dulpex e aore râ, full-duplex.
A hi'o i te mau haamaramaramaraa i ni'a i te hono i raro nei. https://ivcan.com/request-a-quote-of-wireless-video-transmission/#simplex
Te turu nei te rahiraa o te mau matini haapurororaa video i teie nei AES128 e aore râ, AES256 Te mau mana'o tauturu no te haapiiraa e te aporaa, Tei te huru o te hoho'a ta oe e ma'iti. A farerei mai na ia matou no te hi'opo'a.
Te mau hoho'a video aita e niuniu uira e te matini haruharu video aita e niuniu paraparau e nehenehe e tauiuihia. E mea ti'a i te mau taata e faaohipa ra i te reira ia hoo mai i te tahi atu mau tabula ohipa.
Tera ra, Ia hi'o - ana'e - hia e ua haamau - a'ena - hia te tao'a haapuai uira e te antenna i roto i te tahi anairaa ia haponohia te mau tao'a. Mai te peu e e faatano te taata faaohipa i te pinepineraa o te matini haapurororaa, te papa'iraa mo'a mana no te faatere i te mau ohipa, E mea ti'a atoa ia tauihia te antenna e te antenna i ni'a i te hoê â pinepineraa, e e mea ti'a i teie mau taata ia faaineinehia. Mai te mea e, aita, e faatupu te reira i te taa - ê - raa i rotopu i te pinepineraa o te tao'a video aita e niuniu paraparau, i te pinepineraa o te antenna, faariro i te fariiraa ei mea fifi. No reira, a ara i te faaara i te pinepineraa tano o ta outou e hinaaro hou a ani ai i te hoê poro'i.
Mai te peu e no te parururaa aore ra no te hunaraa, e nehenehe ta oe a faaohipa i te ta'iraa e te faaoreraa i te ta'iraa te mau ohipa a te taata nene'i e te taata farii, na te reira e haapapû e, e mea mo'emo'e ta outou haponoraa video. .
E, te taatoaraa o ta tatou tao'a E nehenehe e faaohipa i te mau hoho'a ia au i te mau hinaaro o te hoani. Mai te mea e, e aniraa taa ê ta outou, a faaite mai na ia matou na roto i te hono i raro nei.
https://ivcan.com/request-a-quote-of-wireless-video-transmission/
- Taui i te parahiraa o te taata farii no te ape i te mau haafifiraa o te fenua iho i te mau vahi puai o te auri ovahine.
- A haapapû e, te mau antennas i ni'a i te e mea ti'a i te taata horo'a e te taata farii ia farii.
- A afa'i i ni'a te mau antennas o te matini nene'iraa e te afata apo parau i te a tape'a noa i te hoê taa-ê-raa teitei.
- A hi'o ati a'e ia outou no te haapapû e, aita e fifi i rotopu i te taata horo'a e te taata farii.
- Taui i te faanahoraa o te antenna.
- Mai te mea e, aita te reira e tupu, tamataraa faaho'iraa i te taata farii ia piri atu i te ti'araa o te taata horo'a no te hi'o e, ua hau a'e anei te reira i te atearaa o te haponoraa i te niuniu afa'ifa'i.
- E aore râ, a feruri e te tahi atu â mau mea i ni'a i te i ropu i te taata horo'a e te taata farii.
- E tia i te antenna ia teitei roa i nia i te repo, a apo noa ai te repo i te tapa'o e parare ra.
Oia mau, ua taa atoa ia matou e, e mea moni roa te mau matini haapurororaa video e te mau matini afa'ifa'i. Mea atea roa outou i te fare neneiraa no Taina. e te ti'aturiraa e, te mau tao'a ta outou e farii, e tano ïa no te ohipa maitai roa a'e.
Mai te peu e e haapao maitai outou i te hoê faito aore ra te hoê ohipa taa maitai, e nehenehe ta tatou e rave i te tahi mau hoho'a video hi'opo'a niuhia i ni'a i te mau hoho'a ta outou e hinaaro e hi'o, e ti'amâ rii na outou no te farerei mai ia matou. Eita te reira e hapono-ti'a-hia'tu ia outou mai te mea aita ta outou parau faati'a.
No te tamata i te taere o te matini haapurororaa video e te afata apo parau, e ti'a ia tatou ia rave e piti tamataraa.
Te matamua o te tamataraa ïa i te taere mai te pata hoho'a e tae atu i te faaiteiteraa.
Te piti o te pata hoho'a ïa, A tapiri i te faaiteiteraa e te matini haruharu hoho'a aita e niuniu paraparau e te taere o te taata farii.
Te hi'opo'araa i na hopearaa e piti o te hi'opo'araa, o te taereraa mau ïa o te matini haapurororaa video e te taata farii.
Ei taata aravihi i te pae no te mau matini roro uira e te mau matini haruharu hoho'a video e te mau taata hamani hoho'a i te fenua Taina Shenzhen, e hamani tatou i te matini haruharu hoho'a video maitai roa a'e e te afata teata maitai roa a'e no te mau matahiti e rave rahi, e ua roaa ia matou te hoê roo maitai e te mau hi'opo'araa maitai roa a'e.
Te tahi mau tapao tuiroo o te mau tao'a video aita e niuniu paraparau, mai ia Blackmagic, Te fenua ni'a mata'i mā 300 400s, Accsoon cine eye 5g, RavenEye, Zhiyun, Inkee benbox, Te mau mana'o tauturu no te, CVW SWIFT 800, Te mau nota, Te mau nota, Artek pat-225k, Te mau nota, Te mau nota, Te mau nota.
E rave rahi faaohiparaa to te tapura haamau'araa maitai roa a'e no te haapurororaa video e te afata apo parau, no te 4K, TUHAA PURERAA NO TE A AFATA TEATA, Te mau mana'o tauturu no te haapiiraa e te afata te, TE MAU HOHO'A VIDEO, Te mau mana'o tauturu no te haapiiraa, matini roro uira, sony camcorder, Faanahoraa no te amuiraa no ni'a i te mau hoho'a video, CANON DSLR, TE MAU PARAU APÎ O TE EKALESIA, matini roro uira pc laptop, Te mau mana'o tauturu no te, in-car, IPhone iPad, Te mau mana'o tauturu no te, Te pataraa hoho'a i ni'a i te hoho'a, raspberry pi, Xbox.
Te hoho'a video taatoa, faarooraa, Data link na'ina'i roa a'e no te matahiti 1080P, e rave rahi mau rave'a haapurororaa video e vai ra i ni'a i te matini roro uira e te mau niuniu afa'ifa'i., mai te AV COMPOSITE CVBS, HDMI, SDI, BNC, VGA, USB.
E 170-806Mhz to te taata pata hoho'a video., 1.2Te mau nota, 2.4G, 5.8G, Haehaa eiaha râ i te hopearaa. No te turu i te atearaa o te tau, e 10w to te 10raa o te matahiti o te matini uira, 20Watts, e tae noa'tu i te 30W.
Eaha te mea maitai a'e ia hoo mai i te hoê matini video aita e niuniu uira i te hoê tino moni mâmâ a'e? E tia ia outou ia hi'opoa i ta outou mau titauraa no nia i te mau mea atoa, ma'iti ma te au maitai, e ere i te mea moni, mai te mea e, te feaa ra oe, a A hi'o i te a ani i te hoê faahitiraa parau Api no te peniraa, e horo'a mai ta matou rave'a ia outou i te hoê rave'a.
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