Video odašiljač velikog dometa za dronove, Ultimate FAQ Guide

Da, for the two-way bidirectional wireless video data rc link, the quotation is on the base of one unit. If you need one transmitter and one receiver, then the unit price should be 2X.
There are also customers who buy three or more sets, the middle one is the relay to extend the distance further.
There are also customers with multiple transmitters and a receiver or one transmitter and multiple receivers, the quantity is according to your needs, so the cost is unit price X quantity.

The flying altitude of this drone depends on your actual application. The transmission distance we mentioned here is based on the visible range. THE (line-of-sight).

We have some clients who use weather balloons in the atmosphere （24-37km）to monitor the operation and performance of the device.
There are also more customers who use UAVs, just keeping the UAV higher than the obstacle on the grounds.

In our test video on the ground, in order to test the transmission distance from 30 do 150 kilometara, it is often necessary to climb to a high mountain of about 1,000 metara, so that the field of vision is wide.

The power amplifier is a signal enlarger for the longer transmission distance. We can offer you 0.3W, 1W, 2W, 5W and 10W.
Considering the 30km-50km transmission distance, it is better to choose 2 watts for 30~40km and 5 watts for 50~80km. 10 watts PA support 100~150km.

Da, every unit of the two-way bidirectional model is the transceiver. You can put any unit to as the relay or repeater between the transmitter and receiver.

Da, each unit of TX900 has two RJ45 ethernets for the IP camera. (also support extending more cameras by net switch), three data ports, and one bidirectional audio input-output.

TX900 and Vcan1681 have software authorization on the transmission distance. Vcan1818 has no this setting, the transmission distance depends on the power amplifier.

TX900: 5 Watts: 142grams and 10 Watts 242 grama

200-300ms video (including a camera to monitor)
30-60ms data

Da, podrška

The video quality is the same at 55km and 80km.
The working frequency should choose according to your local frequency authorization policy.
If your local has DVB-T / DVB-T2 digital tv, the frequency range is from 170~860Mhz, then 1.4Ghz is recommended.
Try to avoid the frequencies already in use in the local area as much as possible to reduce interference and avoid image quality freeze or mosaic.

Da, you can set the frequency at the software Web UI or via the parameter configuration board tool.
The antenna and PA power amplifier are working in the some frequency range. Their frequency range is fixed when customized.
So you should also change the antenna and PA when you modify the frequency is out of their frequency range.
Na primjer, when you tell us you agree the working frequency is 1.4G, then the antenna and PA will be working well at the 1.4G, even if you can change the transmitter and receiver working frequency to 800Mhz, you also need to change 800Mhz antenna and PA.

TX900 has three frequency ranges that can be optional, 800MHz, 1.4Ghz, and 2.4Ghz.
Vcan1818 working frequency range can be preset according to your project need.

when you buy it, the power amplifier and max transmission range are fixed, i ne može se potrošiti nadogradnjom softvera, osim što mijenjate hardver primopredajnog modula i PA. Sklop je složen, bolje da kupi potpuno novi.

Imajte na umu da naš modul bežičnog odašiljača podržava frekvencijski pojas. Kao što je 1427,9~1447,9MHz (1.4G) ili 806 ~ 826MHz (800MHz), ili izborno 2401.5~2481.5MHz (2.4G).
Morate odabrati 1.4G, 800MHz, ili 2.4G pri kupnji. (antena i PA bit će prilagođeni prema frekvencijskom pojasu).
Na frekvencijskom pojasu, postoji mnogo frekvencijskih točaka. Na primjer, 1.4G raspon je od 1427.90~1447.0Mhz. Kao wifi, modul će automatski odabrati frekvencijsku točku s najboljim trenutnim signalom kao frekvencijsku točku prijenosa, tako da ne morate ručno mijenjati frekvencijsku točku osim ako ne želite promijeniti frekvencijsku točku s lošijim signalom.
So our engineer doesn’t suggest that you change the frequency manually. If you still need to do it, it should change the transmitter frequency first, then change the receiver frequency to the same as the transmitter.
It is better that you reboot the transmitter and receiver. If you don’t reboot, it also can be working.

Please check the PC AT commands at the below link.
https://ivcan.com/uart-at-command-for-wireless-video-transmitter-and-receiver/

1. In the same frequency band (such as 1.4G), the transmission rate we generally refer to (also called the air interface rate) mainly depends on the wireless bandwidth (such as 10MHz, 20MHz) and wireless modulation parameters (kao što je QPSK, QAM16, QAM64).
2. Among them, the wireless bandwidth is set by the user (such as the wireless page under the web page), but the wireless adjustment parameters are automatically and dynamically set by the system. Na primjer, QAM64 is used for short distances, and QAM16/QPSK is used for long distances. This is different from one-way cofdm image transmission.
3. Na primjer, with the same configuration of 20MHz bandwidth, the air interface rate is as high as 30Mbps at short distances, but only 3~4Mbps at extreme distances.
As for what wireless adjustment parameters to use under what conditions, or the currently used wireless adjustment parameters, customers need to explore and operate by themselves.
4. What frequency band the customer chooses should not be based on the transmission rate of the high-frequency band, but also based on the legitimacy of the frequency band and whether the frequency band is “clean”. Theoretically, the radio wave in the high-frequency band corresponds to a short cycle, so the transmission time is short and the transmission rate is fast, but the specific theoretical value, I can’t answer you, the actual value, the customer can test it through the speed measurement software (the “measure” page of the TX900 webpage is integrated with IPERF speed measurement)

podrška.
Our system is a transparent transmission system. That means that video or data you input, we will transfer them. How to control the robot, it is your parts.
We have clients who use a PTZ camera, the receiver also has a joystick to control the PTZ camera, zoom, move or rotate.

1. In the visible range, how far our wireless transmission system can support depends on the transmission distance we mentioned and the matching power amplifier you choose when purchasing. Can be selected from 7km 15km, 30km, 50km 80 km, 100km, i 150 km.

2. If the transmission module you choose can support up to 100 kilometara, but you do not choose our default 5-watt power amplifier, then this distance cannot be reached.

3. It is difficult to answer how many kilometers our transmission system can transmit in the case of non-line-of-sight.
Because non-line-of-sight transmission distance depends on what is the obstacle between the transmitter and receiver?
If it is a metal-enclosed box indoors or on a mountain, the transmission distance cannot be determined.
Wireless video transmission signals are just like radio or GPS signals, they must be able to obtain signals in the presence of diffraction. Preferably in an open area.

This is perfectly fine,
We also have customers who use it for long-term video surveillance in harsh situations such as borders, grasslands, mines, and reservoirs.

1. Connecting more cameras also ensures smooth video, depending on the pixels you choose for video and the transmission distance.

2. Our default transmission bandwidth is 20Mbps. If you connect four or five cameras, the pixels of each camera reach 1080p, and the transmission distance is more than 30 kilometara, the video will occasionally freeze. When this happens, you can adjust the video format to a lower video pixel, or reduce the number of cameras connected to the transmitter.

1. The answer to this question is basically the same as the previous one because the bandwidth rate of our single set of links is 20Mbps. Connecting more transmitters, each transmitter will occupy the corresponding bandwidth.

2. The smoothness of the video depends on the pixels and transmission distance of each camera you choose. Ispod je video kako testiramo tri odašiljača i jedan prijemnik u našem uredu. Slika je prilično glatka.
https://youtu.be/XI0fdp_LctU

1. Svaki odašiljač i svaki prijemnik imaju svoju jedinstvenu IP adresu. Kojem ćete odašiljaču i kameri pristupiti s prijemnika ovisi o tome znate li IP adresu koju ste unaprijed postavili. Ovo osigurava da, čak i ako se mnogo skupova odašiljača ili prijamnika nalazi na istoj lokaciji, možete pristupiti samo uređajima čije IP adrese znate.

2. U isto vrijeme naš prijenos i prijem također podržavaju AES šifriranje i dešifriranje. Čak i ako drugi neovlašteni korisnici znaju vašu IP adresu, ne mogu pristupiti niti pogledati video odašiljača i kamere kako bi osigurali privatnost bežičnog prijenosa.

1. Most of our customers use the RTS player of the computer to watch or record the video content of the IP camera.

2. If you need to set up NVR, our engineers can provide setup assistance according to your NVR-specific equipment.

1. My engineers and I will provide detailed help and remote configuration according to your project needs.

2. For specific technical information, according to your needs, we will judge whether it can be opened for free. But we will definitely ensure that you can use the device normally.

If used 10W power amplifier, it can reach 150~200km. (NLOS)

Because of the curvature of the earth, which creates obstructions between the transmitter and receiver, and requires longer distances, it is necessary to ensure that the aircraft flies high enough or use an intermediate mission aircraft as a relay.

According to our understanding, the hottest part should be the air unit(the access node), because the environment inside the aircraft is very narrow and closed.

1. The next time you find this kind of problem, you need to use the elimination method, because in general, the probability of unilateral problems is higher. Na primjer, if we suspect that there is a problem with the access node at the aircraft unit. then we only restart the access node at the aircraft unit. Do NOT restart the central node on the ground side to see if you can connect after restarting the access node on the aircraft side, there is a high probability that there is a problem with the access node on the aircraft side.

2. If there are conditions, na primjer, if the wired network port of the access node on the aircraft is exposed, then you can connect it to the computer, and log in to the wireless link web page (zadano 192.168. 1.12). On the debug page, send any AT naredba, and check whether the wireless transmission system can respond to AT commands normally.

3. There is a link core module in our transmitter and receiver. It has a log function. Before the flight, it will always record the operation status of the wireless link. When there is a problem, return to the ground, export the log information, and send the log file to MorningCore Help to analyze the reason there. Kako dobiti datoteke dnevnika za analizu i rješavanje grešaka prekida veze TX900.

Our wireless video data transmission system supports AES 128 šifriranje, Banks also use this encryption algorithm. for more information, you can google search aes128.

1. U-shaped mountain clamp for 120cm Receiver fiberglass FRP antenna

2. 150cm Coaxial cables for 29cm transmitter antenna

3. 150cm Coaxial cables for 120cm receiver antenna

It can go directly to 55km, and the height of the aircraft should be more than 300 metara. It is best to see through, without occlusion, or there is basically no occlusion near the antenna.

The average power consumption of the video transmitter is less than 1.1A@24V, and the average power consumption of the video receiver is less than 0.8A@24V. Power supply range 24~28V.

Support lipo batteries.
6S baterija: 3.76=22.2V, 4.26=25.2V, to je, 22.2~25.2V, nema problema.

Some clients used the HS code 8517799000.

Da, our long-range drone wireless transmitter and receiver supports Mavlink protocol and flight control. Please check the operation at the below link.
https://www.youtube.com/watch?v=KJ7JMZZNgcI
https://www.youtube.com/watch?v=9uI_KZlKeOQ

We can customize them for you according to your demand.

Da, for the transceiver, it is better to buy at least 2 kom za jedan par.
You need to buy two, one for transmission and one for reception.

36.1. What was the maximum range you received with a transmitter power of 10 watts and at what altitude?
ivcan: TX900-10W-150km, Our clients can work well at 150~200km at the 1000-meter altitude. We tested 110km from the mountain top to the seaside. https://youtu.be/r1X4AU1togE

36.2. Communication via Ethernet supports all standard protocols and are there any restrictions on UDP protocols? Or the modem is absolutely transparent from a network point of view?
ivcan: Da, our wireless link is like an invisible net cable, it supports almost ethernet protocols, TCP/ IP, itd. TX900 also supports absolutely transparent transmission.

36.3 Encryption is only possible with NPP 128, or is it possible with 256?
ivcan: TX900 podržava AES128 enkripciju.

36.4 Je li mrežasta funkcija dostupna za ovaj modem?
ivcan: TX900B ima IP mesh funkciju. Postoje tri verzije udaljenosti prijenosa: 3km, 10km, i 50 km.

36.5 Je li moguće brzo promijeniti način rada (tijekom leta) repetitora između točke i točke?
ivcan: oprostite, ne može promijeniti operativni model tijekom leta. Možete promijeniti ulogu primopredajnika u odašiljač, prijamnik, ili repetitor na zemlji.

Imam IP kameru spojenu na odašiljač u zraku. Video feed se prima na strani prijemnika. Mogu vidjeti videosadržaj u aplikaciji IPCAM. Ali sada želim video feed unutar svog softvera za planiranje misija.

Odgovor: Kliknite desnom tipkom miša na HUD. Postoji nekoliko opcija za odabir.

Please get help at the below link.
https://ardupilot.org/planner/docs/mission-planner-flight-data.html

U redu, One of our TX900 sub-models can support 30 to 50Mbps.

Da, TX900 supports a camera with RTSP protocol.
It also supports an IP ethernet protocol camera, which you can submit camera PTZ (Pan/Tilt/Zoom).

The TX900 default set includes one transmitter and one receiver, two 29cm transmitters, and two 120cm receiver antennae.

D1 is the transparent serial port of the core wireless link modem. It is designed to ensure real-time performance but not the serial port data frame structure.

We have a situation when the air and ground units are disconnected, they won’t be connected automatically. If I power the air unit off and on, they reconnect.
Please show us more details and our engineer will offer you the specific solution.

Now it supports 4k 30fps, 3840*2160@30 sličica u sekundi