Lang rekkevidde videosender for droner, den ultimate FAQ-guiden

Ja, 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.
Det er også kunder med flere sendere og en mottaker eller en sender og flere mottakere, mengden er i henhold til dine behov, så kostnaden er enhetspris X mengde.

Flyhøyden til denne dronen avhenger av din faktiske applikasjon. Overføringsavstanden vi nevnte her er basert på den synlige rekkevidden. DEN (siktelinjen).

Vi har noen kunder som bruker værballonger i atmosfæren (24-37 km) for å overvåke driften og ytelsen til enheten.
Det er også flere kunder som bruker UAV, bare å holde UAV høyere enn hindringen på bakken.

I vår testvideo på bakken, for å teste overføringsavstanden fra 30 til 150 kilometer, det er ofte nødvendig å klatre til et høyt fjell på ca 1,000 meter, slik at synsfeltet er bredt.

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.

Ja, 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.

Ja, 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 Watt: 142grams and 10 Watt 242 gram

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

Ja, Brukerstøtte

Videokvaliteten er den samme ved 55 km og 80 km.
Arbeidsfrekvensen bør velges i henhold til din lokale retningslinjer for frekvensautorisasjon.
Hvis din lokale har DVB-T / DVB-T2 digital TV, frekvensområdet er fra 170~860Mhz, da anbefales 1,4Ghz.
Prøv å unngå frekvensene som allerede er i bruk i lokalområdet så mye som mulig for å redusere forstyrrelser og unngå frysing av bildekvalitet eller mosaikk.

Ja, du kan stille inn frekvensen på programvarens web-UI eller via verktøyet for parameterkonfigurasjon.
Antennen og PA-effektforsterkeren fungerer i et visst frekvensområde. Frekvensområdet deres er fast når det tilpasses.
Så du bør også bytte antenne og PA når du endrer frekvensen er utenfor deres frekvensområde.
For eksempel, når du forteller oss at du godtar at arbeidsfrekvensen er 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, and can not expend by software upgrade, except that you change the hardware of the transceiver module and PA. The assembly is complex, you’d better buy a totally new one.

Please note that our wireless transmitter module supports a frequency band. Such as 1427.9~1447.9MHz (1.4G) eller 806 ~ 826MHz (800Mhz), or optional 2401.5~2481.5MHz (2.4G).
You must choose 1.4G, 800Mhz, or 2.4G when buying it. (the antenna and PA will be customized according to the frequency band).
At the frequency band, there are many frequency points. For eksempel, the 1.4G range is from 1427.90~1447.0Mhz. Like wifi, the module will automatically select the frequency point with the best current signal as the transmission frequency point, so you don’t need to manually modify the frequency point unless you want to change to a frequency point with the worse signal.
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 (slik som 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. For eksempel, QAM64 is used for short distances, and QAM16/QPSK is used for long distances. This is different from one-way cofdm image transmission.
3. For eksempel, 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 (de “measure” page of the TX900 webpage is integrated with IPERF speed measurement)

Brukerstøtte.
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, og 150 km.

2. If the transmission module you choose can support up to 100 kilometer, 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 kilometer, 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. Below is a video of us testing three transmitters and one receiver in our office. The picture is quite smooth.
https://youtu.be/XI0fdp_LctU

1. Every transmitter and every receiver has its unique IP address. Which transmitter and camera you access from the receiver depends on whether you know the IP address you set beforehand. This ensures that, even if many sets of transmitters or receivers are in the same location, you can only access devices whose IP addresses you know.

2. At the same time our transmission and reception also support AES encryption and decryption. Even if other unauthorized users know your IP address, they cannot access or view the video of the transmitter and camera to ensure the privacy of wireless transmission.

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. For eksempel, 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, for eksempel, 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 (misligholde 192.168. 1.12). On the debug page, send any AT kommando, 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. Hvordan få loggfiler til å analysere og løse TX900-koblingsavbruddsfeil.

Our wireless video data transmission system supports AES 128 kryptering, 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 meter. It is best to see through, without occlusion, or there is basically no occlusion near the antenna.

Gjennomsnittlig strømforbruk til videosenderen er mindre enn 1,1A@24V, og det gjennomsnittlige strømforbruket til videomottakeren er mindre enn 0,8A@24V. Strømforsyningsområde 24~28V.

Støtte lipo-batterier.
6S batteri: 3.76=22,2V, 4.26=25,2V, det er, 22.2~25,2V, ikke noe problem.

Noen klienter brukte HS-koden 8517799000.

Ja, vår trådløse langdistanse drone sender og mottaker støtter Mavlink-protokoll og flykontroll. Vennligst sjekk operasjonen på lenken nedenfor.
https://www.youtube.com/watch?v=KJ7JMZZNgcI
https://www.youtube.com/watch?v=9uI_KZlKeOQ

Vi kan tilpasse dem for deg i henhold til etterspørselen din.

Ja, for transceiveren, det er bedre å kjøpe i det minste 2 stk for ett par.
Du må kjøpe to, en for overføring og en for mottak.

36.1. Hva var den maksimale rekkevidden du mottok med en sendereffekt på 10 watt og i hvilken høyde?
ivcan: TX900-10W-150 km, Våre kunder kan jobbe godt på 150~200 km i 1000 meters høyde. 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: Ja, our wireless link is like an invisible net cable, it supports almost ethernet protocols, TCP/ IP, etc. TX900 also supports absolutely transparent transmission.

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

36.4 Is the mesh function available for this modem?
ivcan: TX900B has the IP mesh function. There are three versions of the transmission distance: 3km, 10km, and 50km.

36.5 Is it possible to quickly change the operating mode (during the flight) of the repeater between point to point?
ivcan: Beklager, it can not change the operating model during the flight. You can change the role of the transceiver to the transmitter, mottaker, or repeater on the ground.

I have an IP camera attached to the transmitter airborne. The video feed is being received on the receiver side. I can see the video feed in the IPCAM application. But now I want the video feed inside my mission planner software.

Svar: Right-click on the HUD. There are several options to choose from.

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

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

Ja, 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@30fps