Longdistanca Videodissendilo por virabeloj, la Finfina Oftaj Gvidilo

jes, por la dudirekta dudirekta sendrata video-datuma rc-ligo, la citaĵo estas sur la bazo de unu unuo. Se vi bezonas unu dissendilon kaj unu ricevilon, tiam la unuoprezo devus esti 2X.
Estas ankaŭ klientoj, kiuj aĉetas tri aŭ pli da aroj, la meza estas la stafetado por plilongigi la distancon.
Ekzistas ankaŭ klientoj kun multoblaj dissendiloj kaj ricevilo aŭ unu dissendilo kaj multoblaj riceviloj, la kvanto estas laŭ viaj bezonoj, do la kosto estas unuprezo X kvanto.

La fluga alteco de ĉi tiu virabelo dependas de via reala apliko. La dissenda distanco, kiun ni menciis ĉi tie, baziĝas sur la videbla intervalo. LA (vidlinio).

Ni havas kelkajn klientojn, kiuj uzas veterbalonojn en la atmosfero (24-37km) por kontroli la funkciadon kaj agadon de la aparato..
Estas ankaŭ pli da klientoj, kiuj uzas UAVojn, nur tenante la UAV pli alta ol la obstaklo sur la tereno.

En nia prova video sur la tero, por testi la dissenddistancon de 30 al 150 kilometrojn, estas ofte necese grimpi al alta monto de ĉ 1,000 metroj, tiel ke la vidkampo estas larĝa.

The power amplifier is a signal enlarger for the longer transmission distance. We can offer you 0.3W, 1Ok, 2Ok, 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.

jes, 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.

jes, 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 Vatoj: 142grams and 10 Vatoj 242 gramojn

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

jes, subteno

La videokvalito estas la sama ĉe 55km kaj 80km.
La laborfrekvenco devus elekti laŭ via loka frekvenca rajtigopolitiko.
Se via loka havas DVB-T / DVB-T2 cifereca televido, la frekvenca gamo estas de 170 ~ 860Mhz, tiam 1.4Ghz estas rekomendita.
Provu eviti la frekvencojn jam uzatajn en la loka ĉirkaŭaĵo kiel eble plej multe por redukti interferon kaj eviti bildkvalitan froston aŭ mozaikon..

jes, vi povas agordi la frekvencon ĉe la programaro Web UI aŭ per la parametra agorda tabulo-ilo.
La anteno kaj PA-potencamplifilo funkcias en iu frekvenca gamo. Ilia frekvenca gamo estas fiksita kiam personecigita.
Do vi ankaŭ devus ŝanĝi la antenon kaj PA kiam vi modifas la frekvenco estas ekster ilia frekvenca gamo.
Ekzemple, kiam vi diras al ni, ke vi konsentas, ke la laborfrekvenco estas 1.4G, tiam la anteno kaj PA funkcios bone ĉe la 1.4G, eĉ se vi povas ŝanĝi la dissendilon kaj ricevilon laborfrekvencon al 800Mhz, vi ankaŭ devas ŝanĝi 800Mhz-antenon kaj PA.

TX900 havas tri frekvencintervalojn kiuj povas esti laŭvolaj, 800Mhz, 1.4Ghz, kaj 2.4Ghz.
Vcan1818 laborfrekvenca gamo povas esti antaŭmetita laŭ via projekta bezono.

kiam vi aĉetas ĝin, la potenca amplifilo kaj maksimuma dissenda gamo estas fiksitaj, kaj ne povas elspezi per programaro ĝisdatigo, krom ke vi ŝanĝas la aparataron de la transceiver-modulo kaj PA. La asembleo estas kompleksa, vi prefere aĉetu tute novan.

Bonvolu noti, ke nia sendrata dissendila modulo subtenas frekvencbendon. Kiel 1427.9~1447.9MHz (1.4G) aŭ 806 ~ 826MHz (800Mhz), aŭ laŭvola 2401.5~2481.5MHz (2.4G).
Vi devas elekti 1.4G, 800Mhz, aŭ 2.4G aĉetante ĝin. (la anteno kaj PA estos personecigitaj laŭ la frekvenca bando).
Ĉe la frekvenca bando, estas multaj frekvencpunktoj. Ekzemple, la 1.4G gamo estas de 1427.90~1447.0Mhz. Kiel wifi, la modulo aŭtomate elektos la frekvencpunkton kun la plej bona nuna signalo kiel la dissenda frekvenca punkto, do vi ne bezonas mane modifi la frekvencpunkton krom se vi volas ŝanĝi al frekvencpunkto kun la pli malbona signalo..
Do nia inĝeniero ne sugestas, ke vi ŝanĝu la frekvencon permane. Se vi ankoraŭ bezonas fari ĝin, ĝi devus unue ŝanĝi la dissendilan frekvencon, tiam ŝanĝu la ricevilan frekvencon al la sama kiel la dissendilo.
Estas pli bone, ke vi rekomencu la dissendilon kaj ricevilon. Se vi ne rekomencas, ĝi ankaŭ povas funkcii.

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 (kiel ekzemple 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. Ekzemple, QAM64 is used for short distances, and QAM16/QPSK is used for long distances. This is different from one-way cofdm image transmission.
3. Ekzemple, 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 (la “measure” page of the TX900 webpage is integrated with IPERF speed measurement)

subteno.
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 80km, 100km, kaj 150 km.

2. If the transmission module you choose can support up to 100 kilometrojn, 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 kilometrojn, 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. Ekzemple, 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, ekzemple, 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 (defaŭlte 192.168. 1.12). On the debug page, send any AT komando, 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. Kiel akiri Protigajn dosierojn por analizi kaj solvi misfunkciojn pri ligo-interrompo de TX900.

Our wireless video data transmission system supports AES 128 ĉifrado, 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 metroj. 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-kuirilaro: 3.76=22.2V, 4.26=25.2V, tio estas, 22.2~25.2V, no problem.

Some clients used the HS code 8517799000.

jes, 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.

jes, for the transceiver, it is better to buy at least 2 pecoj por unu paro.
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: jes, our wireless link is like an invisible net cable, it supports almost ethernet protocols, TCP/ IP, ktp. 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, kaj 50 km.

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

respondo: 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.

jes, 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