1. Must your price be 2X for TX and RX, correct?

Yes, 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.

2. What is the altitude estimate to achieve 50 km and 80 km?

The flying altitude of this drone depends on your actual application. The transmission distance we mentioned here is based on the visible range. LOS (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 to 150 kilometers, it is often necessary to climb to a high mountain of about 1,000 meters, so that the field of vision is wide.

3. What power amplifier should I choose? 2 watts or 5 watts?

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.

4. So each unit has a 2-way communication function correct? That means each unit can function as a repeater or relay function correct?

Yes, 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.

5. Each unit can transmit Both Video and telemetry data correct?

Yes, 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.

6. Why does a 5-watt unit have several distance range? I mean there are 5 watts with 30 km, 55 km, and 80 km. Is it because of the software settings or what?

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

7. What is the weight of 5 watts and 10 watts ??

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

8. What is the delay (latency) of 5 watts at 55 km and 80km?

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

10. How about video quality between using 800 Mhz and 1.4 GHz? Which one is better 55 km and 80 km?

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.

11. Can the frequency be set by the software correctly?

Yes, 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. For example, 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.

12. Do you have 1.2 Ghz? This is better, considering Gps frequency.

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.

13. If I buy the 5-watt 30km, can I upgrade in the future to a 55km or 80 km license?

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.

14. It would be nice to double-check if we can change the following parameters without rebooting the UAV radio: Frequency; Bandwidth, and Power amplifier.

Please note that our wireless transmitter module supports a frequency band. Such as 1427.9~1447.9MHz (1.4G) or 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 Example, 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.

15. Our engineers would like to understand how to control the settings of the modem. Do you have an API description? What they are trying to understand is how this datalink can be integrated with our system so that datalink settings are controlled from our ground control station. Thank you.

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

16. Does your transceiver data transmission rate depend on transmission frequency? If yes, then what is the data transmission rate in the lowest frequency? And what is the data transmission rate in the highest frequency?

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 (such as 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 example, 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 example, 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)

17. In the communication transmission kit, I need a joystick with which your equipment works.

Support. 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.

18. The maximum distance that can be achieved in LOS (Line of sight) and NLOS (Non-line of sight) transmission?

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, and 150km. 2. If the transmission module you choose can support up to 100 kilometers, 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.

19. Can these transceivers be used for Land-based applications such as remote surveillance of an 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.

20. How many cameras can be connected to a single transmitter for smooth transfer of video to the receiving station?

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 kilometers, 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.

21. Maximum number of transmitters that can be connected to a single receiver?

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

22. If multiple receivers are placed in a particular location (single site).Then how the transmitter will distinguish that from which receiver it needs to be connected?

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.

23. NVR integration procedure if live transmission and video recording are done simultaneously.

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.

24. Provision of circuit diagram and the architectural details of transceiver?

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.

25. Is it possible for 100 kms or more long distance above see?

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.

26. We conduct a long-range automatic flight today. The drone lost connection the first time at 11Km and it did not auto-reconnect for the whole flight. When the drone landed automatically, we restarted both modules manually then they connected again. Data Port D1 is not used. D2 is SBUS, D3 is TCP server

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 example, 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 example, 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 (default 192.168. 1.12). On the debug page, send any AT command , 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. How to get Log files to analyze and resolve TX900 link interruption faults.

27. If we use the transceivers how about security it is safe because we do not want to hack our data from hackers else

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

28. Can you show me the pictures of the UAV radio link antenna U-shaped mountain clamp and coaxial cables?

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

29. Have you tested that your 5w OFDM VTX can reach about 55 km directly without a repeater? If yes, what is the Altitude of the drone?? Is it really LOS without any obstacles?

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

30. What is the power consumption of the 5 w VTX in Voltage and current?

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.

31. Can it use lipo batteries? 6S battery?

Support lipo batteries. 6S battery: 3.7 6=22.2V, 4.2 6=25.2V, that is, 22.2~25.2V, no problem.

32. Please tell us the HS code for your long-range two-way drone video transmitter and receiver system?

Some clients used the HS code 8517799000.

33. Does it support the Mavlink protocol? I can just attach the air unit with my flight controller, or do I need to set the Mavlink protocol communication in the transceiver? So it doesn't need any configuration for Mavlink?

Yes, 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

34. When shipped, your TX900 sample is equipped with three data ports that are TTL.

We can customize them for you according to your demand.

35. Are they in pairs if I buy the device? I mean, for the receiver and transmitter. I'm planning to transmit a video stream wireless with an 18km distance.

Yes, for the transceiver, it is better to buy at least 2 pcs for one pair. You need to buy two, one for transmission and one for reception.

36. Hello, I am interested in a communication line for UAVs for video and telemetry transmission.

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: Yes, 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: Sorry, it can not change the operating model during the flight. You can change the role of the transceiver to the transmitter, receiver, or repeater on the ground.

37. How to add the IP camera video stream on my mission planner software?

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. Answer: 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

38. My requirement was only 1 km but with a high bandwidth (for data and video), at least 30Mbps - 50Mbps (24VDC power). also kindly send a datasheet of the unit.

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

39. Is TX900 possible to connect a camera with RTSP protocol to the transmitter?

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

40. What is included in the package of your TX900 whole set?

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

冇人機遠程視頻發射器終極常見問題解答指南

1. TX同RX嘅價錢必須係2倍, 啱?

系嘅, 用于雙向雙向無線視頻數據RC鏈路, 報價以一個單位為基礎. 如果您需要一個發射器和一個接收器, 咁單價應該係2倍.
也有購買三套或更多套嘅客戶, 中間嘅係一個繼電器，可以進一步延長距離.
也有客戶擁有多個發射器和一個接收器或一個發射器和多個接收器, 數量根據您的需求, 所以成本係單價X數量.

2. 要達到嘅海拔高度估計係幾多 50 km同 80 公里?

架冇人機嘅飛行高度取決於您的實際應用. 我哋喺呢度提到嘅傳輸距離係基於可見光範圍嘅. 洛杉矶 (視線).

我哋有啲客戶喺大氣層（ 24-37公里）中使用氣象氣球嚟監控設備嘅運行和性能.
使用冇人機嘅客戶都更多, 只係畀冇人機高於地面上嘅障礙物.

喺我哋喺地面上嘅測試視頻中, 為咗測試傳輸距離 30 自 150 公里, 經常需要擒到一座高山 1,000 米, 使視野開闊.

3. 我應該揀乜嘢功率放大器? 2 瓦特或 5 瓦?

功率放大器係用于更長傳輸距離嘅信號放大器. 我們可以為您提供0.3W, 1W, 2W, 5W同10W.
考慮到30km-50km嘅傳輸距離, 最好選擇 2 瓦特30~40km同 5 瓦數50~80km. 10 瓦特PA支持100~150km.

4. 所以每個單元都有一個2路通信功能正確? 意味住每個單位都可以作為中繼器或繼電器功能正確?

系嘅, 雙向雙向模型嘅每個單位都係收發器. 您可以將任何單元作為發射器和接收器之間的繼電器或中繼器.
wireless relay transmitter receiver system
two-way link transmitter receive repeater

5. 每個單位都可以正確傳輸視頻和遙測數據?

系嘅, TX900嘅每個單位都有兩個用于IP攝錄機嘅RJ45以太網. (仲支持透過網絡交換機擴展更多攝像頭), 三個數據端口, 同1個雙向音頻輸入輸出.

6. 點解5瓦嘅裝置有幾個距離範圍? 我嘅意思係有 5 瓦特 30 公里, 55 公里, 同 80 公里. 係因為軟件設置仲係乜嘢?

TX900同Vcan1681喺傳輸距離上有軟件授權. Vcan1818冇此設置, 傳輸距離取決於功率放大器.

7. 重量係幾多 5 瓦特同 10 瓦 ??

TX900: 5 瓦: 142克和 10 瓦 242 克

8. 乜嘢係延遲 (延遲) 系属於 5 瓦特 55 公里同80公里?

200-300MS視頻 (包括一個攝像頭嚟監控)
30-60MS數據

9. 關於遙測數據, 是否與MavLink協議兼容, 因為我將使用Pixhawk Ardupilot?

系嘅, 支持

10. 使用之間嘅視頻質素如何 800 Mhz同 1.4 G h z? 邊個仲好 55 km同 80 公里?

55公里同80公里嘅視頻質素相同.
工作頻率應根據您當地的頻率授權政策進行選擇.
如果您的本地有DVB-T / DVB-T2數字電視, 頻率範圍為170~860Mhz, 咁建議使用1.4Ghz.
盡量避免使用局部區域已經使用的頻率，以減少干擾，避免圖像質素卡頓或馬賽克.

11. 軟件可以正確設置頻率嗎?

系嘅, 你可以喺軟件Web UI或透過參數配置板工具設置頻率.
天線同PA功率放大器喺某個頻率範圍內工作. 它們的頻率範圍在定製時是固定的.
因此，当你修改頻率超出其頻率範圍時，你仲應該更改天線同PA.
例如, 当你話畀我哋您同意時，工作頻率為1.4G, 咁天線同PA把喺1.4G的正常工作, 即使您可以把發射器和接收器嘅工作頻率更改為800Mhz, 你仲需要更換800Mhz天線同PA.

12. 你有嗎 1.2 千兆赫? 這樣更好, 考慮Gps頻率.

TX900有三個可選頻率範圍, 800MHz, 1.4千兆赫, 同2.4Ghz.
Vcan1818工作頻率範圍可根據您的項目需要進行預設.

13. 如果我買5瓦30km, 我將來可以升級到55公里或 80 KM許可證?

当你買它, 功率放大器同最大傳輸範圍係固定嘅, 並且無法透過軟件升級嚟消耗, 除了你更改收發器糢塊同PA嘅硬件. 組裝好複雜, 你最好買一個全新嘅.

14. 最好仔細檢查吓我哋係咪可以喺唔重新啟動冇人機無線電嘅情況下更改以下參數: 頻率; 频宽, 同功率放大器.

請注意，我哋嘅無線發射器糢塊支持一個頻段. 如1427.9~1447.9MHz (1.4g) 或806~826MHz (800MHz), 或可選2401.5~2481.5MHz (2.4g).
你必須選擇1.4G, 800MHz, 或購買時為2.4G. (天線和PA將根據頻段定製).
在頻段, 有好多頻率點. 例如, 1.4G範圍為1427.90~1447.0Mhz. 像wifi一樣, 糢塊會自動選擇電流信號最好嘅頻點作為傳輸頻點, 因此，除非您想更改為信號較差的頻率點，否則您不需要手動修改頻率點.
因此，我哋嘅工程師唔建議你手動更改頻率. 如果您仍然需要這樣做, 它應該首先改變發射機頻率, 然後將接收器頻率更改為與發射器相同嘅頻率.
最好重新啟動發射器和接收器. 如果唔重新啟動, 它都可以工作.

15. 我哋嘅工程師想了解如何控制調製解調器嘅設置. 你有API描述啊? 佢哋試圖了解嘅係，如何把此數據鏈與我哋嘅系統集成，以便由我哋嘅地面控制站控制數據鏈設置. 多謝.

請透過以下連結查看PC AT命令.
https://ivcan.com/uart-at-command-for-wireless-video-transmitter-and-receiver/

16. 您的收發器數據傳輸速率是否取決於傳輸頻率? 如果係, 咁最低頻率嘅數據傳輸速率係幾多? 最高頻率嘅數據傳輸速率係幾多?

1. 在同一頻段 (如1.4G), 我哋通常所講嘅傳輸速率 (也稱為空中接口速率) 主要取決於無線帶寬 (如10MHz, 20MHz) 同無線調製參數 (如QPSK, QAM16系列, QAM64型).
2. 其中, 無線帶寬由用戶設置 (如網頁下嘅無線頁面), 但無線調節參數由系統自動動態設置. 例如, QAM64用于短距離, QAM16/QPSK用于長距離. 這與單向cofdm圖像傳輸不同.
3. 例如, 具有相同嘅20MHz帶寬配置, 短距離空口速率高達30Mbps, 但喺極遠距離只有3~4Mbps.
至於在什麼條件下使用什麼無線調節參數, 或當前使用的無線調整參數, 客戶需要自己探索和運營.
4. 客戶選擇什麼頻段，不應以高頻段的傳輸速率為依據, 但都要基於頻段嘅合法性以及頻段是否 “乾淨”. 理論上, 高頻段嘅無線電波對應於短周期, 所以傳輸時間短，傳輸速率快, 但具體嘅理論價值, 我無法答你, 實際價值, 客戶可以透過測速軟件進行測試 (這 “量” TX900網頁嘅頁面集成了IPERF速度測量)

17. 在通信傳輸套件中, 我需要一個操縱桿，您的設備可以與之配合使用.

支持。.
我哋嘅系統係一個透明傳輸系統. 意味住你輸入嘅視頻或數據, 我哋將轉移它們. 如何控制機械人, 呢个系你嘅零件.
我哋有使用PTZ攝錄機嘅客戶, 接收器仲有一個操縱杆嚟控制PTZ攝錄機, 縮放, 移動或旋轉.

18. 喺LOS中可以達到嘅最大距離 (視線) 同NLOS (非視線線) 傳輸?

1. 在可見光範圍內, 我們的無線傳輸系統可以支持多遠取決於我們提到的傳輸距離和您購買時選擇的匹配功率放大器. 可選擇7公里15公里, 30公里, 50公里80km, 100公里, 同150公里.

2. 如果您選擇的傳輸模塊最多可以支持 100 公里, 但你冇揀我哋默認嘅5瓦功率放大器, 咁呢個距離就達不到咗.

3. 好難答喺非視距嘅情況下，我哋嘅傳輸系統可以傳輸幾多公里.
因為非視距傳輸距離取決於發射器和接收器之間嘅障礙物係乜嘢?
如果係室內或山上嘅金屬封閉箱, 傳輸距離無法確定.
無線視頻傳輸信號就無線電或GPS信號噉, 佢哋必須能夠喺存在衍射嘅情況下獲得信號. 最好喺空曠嘅地方.

19. 呢啲收發器是否可以用于陆基應用，例如對某個區域進行遠程監控?

這完全沒問題,
我哋都有客戶將其用于邊境等惡劣情況下嘅長期視頻監控, 草原, 礦山, 同水庫.

20. 單個發射器可以連接幾多部攝錄機，以便把視頻順利傳輸到接收站?

1. 連接更多攝像頭仲可以確保流暢嘅視頻, 取決於您為視頻選擇嘅像素同傳輸距離.

2. 我哋嘅默認傳輸帶寬係20Mbps. 如果連接四個或五個攝像頭, 每個攝像頭嘅像素達到1080p, 且傳輸距離大於 30 公里, 視頻偶爾會凍結. 發生呢種情況時, 你可以把視頻格式調整為較低嘅視頻像素, 或減少連接到發射器嘅攝錄機數量.

21. 可連接到單個接收器嘅最大發射器數量?

1. 呢個問題嘅答案與上一個問題基本相同，因為我哋單組鏈路嘅帶寬速率為20Mbps. 連接更多變送器, 每個發射器將佔用相應嘅帶寬.

2. 視頻嘅流暢度取決於你揀嘅每個攝像頭嘅像素同傳輸距離. 以下係我哋喺辦公室測試三個發射器同一個接收器嘅視頻. 畫面相當流暢.
HTTPS://youtu.be/XI0fdp_LctU

22. 如果把多個接收器放置喺特定位置 (單站點).咁發射器將如何區分它需要連接嘅接收器?

1. 每個發射器同每個接收器都有其唯一嘅IP地址. 你由接收器訪問邊個發射器和攝錄機取決於你是否知道事先設置嘅IP地址. 這確保了, 即使多組發射器或接收器位於同一位置, 你只能訪問您知道其IP地址嘅設備.

2. 同時我哋嘅發送同接收都撐AES加密和解密. 即使其他未經授權嘅用戶知道您的IP地址, 佢哋無法訪問或查看發射器和攝錄機嘅視頻，以確保無線傳輸嘅私隱.

23. 同時進行直播和視頻錄製時嘅NVR集成程序.

1. 我哋嘅大多數客戶使用電腦嘅RTS播放器嚟觀看或錄製IP攝錄機嘅視頻內容.

2. 如果您需要設置NVR, 我哋嘅工程師可以根據您的NVR特定設備提供設置幫助.

24. 提供電路圖同收發器嘅架構細節?

1. 我同我嘅工程師將根據您的項目需求提供詳細嘅幫助同遠程配置.

2. 具體技術信息, 根據您的需求, 我哋將判斷它是否可以免費開放. 但係我哋一定會確保你能夠正常使用該設備.

25. 有冇可能 100 公里或更遠嘅距離見?

如果使用10W功率放大器, 可達150~200km. (非眎距)

因為地球嘅曲率, 會喺發射器和接收器之間產生障礙物, 並且需要更長嘅距離, 有必要確保飛機飛得足夠高或使用中間任務飛機作為中繼.

26. 我哋今日進行遠程自動飛行. 冇人機喺11公里处第一次失去連接，並且喺成個飛行過程中冇自動連接番. 当冇人機自動降落時, 我哋手動重新啟動了兩個糢塊，然後它們再次連接. 未使用數據端口D1. D2係SBUS, D3係TCP服務器

根據我哋嘅理解, 最熱嘅部分應該係空氣單位(接入節點), 因為飛機內部嘅環境非常狹窄和封閉.

1. 下次你發現這種問題時, 您需要使用消除方法, 因為一般來說, 單方面出現問題的概率更高. 例如, 如果我哋懷疑飛機單位嘅接入節點有問題. 然後我哋只重新啟動飛機單位嘅訪問節點. 重新啟動飛行器側接入節點之後，請勿重啟地面側中心節點，查看是否可以連接, 飛行器側嘅接入節點好有可能有問題.

2. 如果有條件, 例如, 如果飛行器上接入節點嘅有線網口暴露, 然後，您可以將其連接到電腦, 並登錄到無線連結網頁 (违约 192.168. 1.12). 在調試頁面上, 發送任何 AT命令, 並檢查無線傳輸系統是否能正常響應AT命令.

3. 我哋嘅發射器和接收器中有一個鏈路核心糢塊. 它具有日誌功能. 飛行前, 它將始終記錄無線鏈路嘅運行狀態. 當出現問題時, 返回地面, 導出日誌信息, 並將日誌文件發送到MorningCore Help以分析原因. 如何獲取日誌文件以分析和解決TX900鏈路中斷故障.

27. 如果我哋使用收發器，安全性如何，佢係安全嘅，因為我哋唔想由其他黑客嗰度破解我哋嘅數據

我哋嘅無線視頻數據傳輸系統支持AES 128 加密, 銀行都使用呢種加密算法. 更多信息, 你可以Google搜索ASS128.

28. 你可唔可以畀我睇吓冇人機無線電鏈路天線U形山夾同同軸電纜嘅圖呀？?

1. U型山夾，用于120cm接收器玻璃鋼FRP天線
U-shaped Mounting clamp
2. 150cm同軸電纜，用于29cm發射器天線
Co-axial Cable for 29cm Transmitter antenna
3. 150cm同軸電纜，用于120cm接收器天線

Coaxial Cable for120cm receiver antenna antenna
wireless relay transmitter and receiver with extender cable

29. 你是否測試過您的5w OFDM VTX可以達到大約 55 公里直接，無需中繼器? 如果係, 冇人機嘅高度係幾多?? 真係冇任何障礙嘅LOS咩?

它可以直接到達55km, 並且飛機嘅高度應大於 300 米. 最好看穿, 無遮擋, 抑或天線附近基本冇遮擋.

30. 嘅功耗係幾多 5 w VTX電壓和電流?

視頻發射器嘅平均功耗小於1.1A@24V, 視頻接收器嘅平均功耗小於0.8A@24V. 電源電壓範圍24~28V.

31. 可以使用鋰電池嗎? 6S電池?

撐鋰電池.
6S電池: 3.76=22.2V, 4.26=25.2伏, 噉係, 22.2~25.2V, 唔緊要.

32. 請話畀我哋您的遠程雙向冇人機視頻發射器和接收器系統嘅HS編碼?

一些客戶使用了HS編碼 8517799000.

33. 它是否支持Mavlink協議? 我可以把空中單位與我嘅飛行控制器連接起身, 還是需要喺收發器中設置Mavlink協議通信? 因此，它不需要對Mavlink進行任何配置?

系嘅, 我哋嘅遠程冇人機無線發射器和接收器撐Mavlink協議和飛行控制. 請透過以下連結檢查操作.
HTTPS://www.youtube.com/watch?v=KJ7JMZZNgcI
https://www.youtube.com/watch?v=9uI_KZlKeOQ

34. 發貨時, 您的TX900樣品配備了三個TTL數據端口.

我們可以根據您的需求為您定制.

35. 如果我購買設備，它們會成對嗎? 我嘅意思係, 用于接收器和發射器. 我計劃以18公里嘅距離無線傳輸視頻流.

系嘅, 用于收發器, 最好至少購買 2 一對.
你需要買兩個, 一個用于傳輸，一個用于接收.

36. 你好, 我對用于視頻和遙測傳輸嘅冇人機通信線路感興趣.

36.1. 当發射機功率為 10 瓦特同喺乜嘢高度?
伊夫坎: TX900-10W-150公里, 我哋嘅客戶可以喺1000米海拔嘅150~200km上好好咁工作. 我哋測試咗由山頂到海邊嘅110公里. https://youtu.be/r1X4AU1togE

36.2. 透過以太網進行通信支持所有標準協議，並且對UDP協議有任何限制? 或者由網絡嘅角度來看，調製解調器係絕對透明嘅?
伊夫坎: 系嘅, 我哋嘅無線鏈路就好似一根看不見嘅網線, 它支持幾乎以太網協議, TCP/IP協議, 等. TX900仲撐絕對透明傳輸.

36.3 加密只能使用NPP進行 128, 或者有可能 256?
伊夫坎: TX900撐AES128加密.

36.4 此調製解調器的網狀功能是否可用?
伊夫坎: TX900B具有IP網狀網絡功能. 傳輸距離有三個版本: 3公里, 10公里, 同50公里.

36.5 是否可以快速更改操作模式 (飛行途中) 點對點之間嘅中繼器?
伊夫坎: 唔好意思, 在飛行過程中不能改變操作模式. 你可以將收發器嘅角色更改為發射器, 接收機, 或地面上嘅中繼器.

37. 如何在我的任務規劃器軟件上添加IP攝錄機視頻流?

我有一個連接到發射器嘅IP攝錄機. 接收方正在接收視頻源. 我可以喺IPCAM應用程序中看到視頻源. 但而家，我希望喺我嘅任務規劃軟件中提供視頻源.

答: 右鍵單擊HUD. 有幾個選項可供選擇.
set gstreamder source on mission planner software
請透過以下連結獲得幫助.
https://ardupilot.org/planner/docs/mission-planner-flight-data.html

38. 我嘅要求只係 1 公里，但帶寬高 (用于數據和視頻), 至少30Mbps – 50Mbps (24VDC電源). 仲請發送設備嘅數據表.

仲可以, 我哋嘅TX900子型號之一可以支持 30 至50Mbps.

39. TX900是否可以將具有RTSP協議嘅攝錄機連接到發射器?

系嘅, TX900支持採用RTSP協議嘅攝錄機.
It also supports an IP ethernet protocol camera, 你可以提交攝錄機PTZ (平移/傾斜/縮放).

40. TX900整套包裝中包含哪些內容?

TX900默認套裝包括一個發射器同一個接收器, 兩個29cm發射器, and two 120cm receiver antennae.

41. Why do you recommend using D2 / D3 as the data port?

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.
rs232 convert sbus for drone wireless video transmitter and receiver

42. Why should I re-power the air unit when the air unit and ground reconnection?

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.

43. Does your model TX900 support 4k 60fps?

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

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