Drone repeater tov ntev-ntau yam wireless yees duab transmitter thiab receiver TX900-10W PA
Cov Txheej Txheem
repeater model for one-way video data transmission unidirectional
For the one-way COFDM Video Data Transmission repeater, we recommended the model Vcan1886, Which has built-in RX (receive) and TX (transmit) two functions, it can get video and data from your transmitter, and send video and data to your receiver, This module has two frequencies, one frequency is as the receiver frequency, it is the same with your transmitter, another frequency is as the transmitter frequency, it is the same with your receiver.
We also can customize the repeater/relay for you. To avoid interference, we also add the two filters, hauv qab no.
Repeater/Relay solution for two-way video data transmission bidirectional
TX900-10W PA introduction and solution as the Drone repeater
TX900-10W PA power amplifier supports drone repeater and FHSS function. Let me introduce the details below.
1. TX900 consists of a core modem (Vcan1681, two-way wireless video, and data link module) and a 2-watt, 5-watt, or 10-watt RF power amplifier inside. (a core modem and 2-watt PA inside picture)
2. There are two versions of the core modem (the same hardware with different Soc firmware): The star wireless network version and the Mesh wireless network version.
| Part number | Qhab Nees(MHz) | Network type |
| K150 | 1420~1530 | Star wireless network version.(P2P, P2MP) It can be used for point-to-point transmitting, point-to-multiple point transmitting, and one-node relay transmitting. The maximum transmitting distance between two points is 150km. |
| S150 | 806~826 1427.9~1447.9 2401.5 – 2481.5 | |
| MK50 | 1400~1529.9 | Mesh wireless network version. Mesh network mode. The maximum transmitting distance between two points is 50km. |
| M50 | 806~826 1427.9~1447.8 2401.5 – 2481.5 |
Only the same core modem can communicate with each other, different core modems can‘t communicate with each other.
3. 10-Watt RF power amplifier is available for 806~826MHz, 1427.9£1447.9MHz, 2401.5 – 2481.5MHz, 1420~12470MHz, 1470~1530MHz. Li ntawd, yog li, we can have TX900-10W to work in 806~826MHz, 1427.9£1447.9MHz, 2401.5 – 2481.5MHz, 1420~12480MHz, 1470~1530MHz.
To note, For the 1420~1530MHz band, we need to separate it into two sub-bands (1420~1480MHz, 1470~1530MHz) since the 10-Watt RF power amplifier can’t support the whole 1420~1530MHz band in the same hardware board.
4. 1.4/3/5/10/20MHz bandwidths configurable, the larger working bandwidth supports more transmitting bitrates in the same condition. For 150km video transmitting, we suggest using 20MHz bandwidth (at least 10MHz).
5. For TX900-10W(1420~1480MHz) or TX900-10W(1470~1530MHz), when setting the working bandwidth is 20MHz, it has about 6 central working frequency points; when setting the working bandwidth as 10MHz, it has about 12 central working frequency point;
The central working frequency will hop when it detects frequency noise. If the current working frequency channel is clean, it will not hop. That means the frequency hopping is not as regular as x times/second.
6. There are two solutions for 150km+150km relay transmitting:
Solution A:
Solution B:
We suggest solution A since it supports more bitrates transmitting than solution B. It is more reliable on video transmission when the RF signal is weak (low SNR).
On Oct. 25tub sab, we tested solution B. During the testing, it had little RF noise on the seaside and we can see A Mobile communication base station tower just about 100m nearby.
Signal reporting on the seaside:
We can see the SNR is about 2~4 on the seaside.
Signal reporting on the mountainside:
We can see the SNR is about 4~7 on the mountainside. The different SNRs on the two sides also approved that it had little RF noise on the seaside.
tiam sis, the video was transmitted very fluently with little RF noise.
Star Networking Vs Mesh Networking for Drone or Robot.
| STAR Network | MESH Network |
|---|---|
| Point to Point Connection between nodes | Multi-point to multi-point connection between nodes |
| Infrastructure based | In Ad hoc mode, devices are autonomous and free to move. In Infrastructure mode, the movement of nodes is restricted around the control center. |
| Central control point is present | Infrastructure-based will have a control center whereas Ad hoc-based does not have it. |
| Nodes communicate via the control center. | It is self-configuring. |
| The central control point is present | Multi hop communication |
| Devices or nodes can not move freely. | Infrastructure-based will have a control center where as Ad hoc based does not. |
| Links between nodes and central control points can be configured. | In Ad hoc mode, devices are autonomous and free to move. In Infrastructure mode, the movement of nodes are restricted around the control center. |
| Nodes communicate via the control center. | Nodes relay traffic to other nodes on the path. |
Technical Specification for the Repeater from one client
- It is required to create an SBus video/data/signal transmission system with a relay station installed on a hexacopter and GC.
- We need the ability to switch frequencies in the range from 800 MHz to 1.4 GHz for SBus data and video transmission (analog and digital with minimal delays).
- Sector antenna for adjusting the gain of the transmitted/received long-range signal. The ability to work with 5 receiving nodes. Support for Ethernet and UART connections between the repeater on the hexacopter and Ground Control requires a real-time image for the operator. The ability to work with 5 receiving nodes. Support Ethernet and UART connection between helicopter repeater and GC, requires a real-time image for the operator.
1. Is your system capable of using 3 nodes? We have to use 3rd node as the repeater in the center between the transmitter and receiver.
Yog, nws txhawb.
2. Yog hais tias kuv siv ob drones, ib tug transmitter, Lwm yog ib tug repeater, Thiab lawv yuav tshuaj los ntawm ib receiver. Puas TX900 txhawb los tswj lub hom phiaj dav hlau thiab relay drone?
Yog, Muaj peb cov tshuaj ua uas.
TX900 muaj peb cov ntaub ntawv ports. Distinguish los ntawm ntau pob tshab serial ports, Xws li D2 tswj relay aircraft thiab D3 tswj lub hom phiaj aircraft. Cov disadvantage yog tias cov TX900 receiver yuav tsum tau txuas nrog ob serial ports xa cov lus qhia nyias.
Siv tib pob tshab serial chaw nres nkoj xa cov ntaub ntawv nyob rau hauv tej tawv nqaij, thiab ces ntxiv txheej txheem protocols (xws li cov lus qhia header) Rau cov ntaub ntawv los distinguish uas aircraft yuav tsum tau txais thiab cov ntaub ntawv. Cov disadvantage yog tias tus txheej txheem xa thiab tau txais cov ntaub ntawv yog nyuab.
Los yog siv ob receivers: Ib receiver yog rau lub hom phiaj dav hlau (transmitter), Thiab lwm receiver yog rau lub repeater drone. The connection and operation are easier.
3. Our company “Boat-Sharing” is engaged in the development of pleasure boats with remote control.
I ask you to give a commercial proposal for the development and sale of a remote control system with a relay system through a pilot-free aircraft at a distance of up to 200 kilometers. tsis tas li ntawd, the boat must be equipped with a video camera with a video transmission system to the base station.
Our TX900 supports 10-watt PA 150km. It also supports relay if you buy three units. (One as transmitter, one as receiver, another as the receiver)
4. Is it possible to quickly change the operating mode (during the flight) of the repeater between point to point?
Thov txim, it can not. You can change the role of the transceiver to the transmitter, receiver, or repeater on the ground.
5. If we stay under 30Km LOS and 50Km with Repeater. Kindly share the transceiver datasheet so my team can better understand the Ports and interface available. We would also need RSSI and telemetry.
Is your quotation bundled with antennas?
Yog, our TX900 supports 30km LOS and 50km with repeater. (max 150~200km)
TX900 supports to show you real-time RSSI and telemetry.
Our quotation includes the four antennas. (two short antennae for the plane in the air side, two long antennae for the ground receiver)
6. nyob zoo, please check our request about the transmitter, receiver and repeater.
nyob zoo, interested in radio communication (rx and tx)for UAVs at frequencies of 300-320MHz or non-standard frequencies that you can offer us, we also need matched antennas for them.
And the ability to connect to the Radiomaster tx16s remote via twisted pair or USB.
To spread the remote control and the transmitter at a distance.
The range of radio communication should be at least 10 km with a very noisy radio broadcast.
Interested in a video transmitter and a video receiver at frequencies 2.1 – 2.2Ghz, thiab 4.8 – 4.9Ghz or non-standard frequencies that you can offer us for use on UAVs. Also matched antennas to them. Video receivers can connect either an AV cable, Fatshark, or sky zone glasses, or the ability to manufacture a ready-made helmet with a video receiver for these frequencies. Video Transmitter: Smart Audio support: muaj
Qhov ntev: ~40×23×10.5mm
Yuag: ~15 g.
repeater. Product requirements: must transmit radio (300 – 320 Mhz) and video (2.1 – 2.2 los sis 4.8 – 4.9 Ghz) communication on the same frequencies as previously requested. Or non-standard frequencies that you can offer us. The input voltage is from ~5 to 30 neeg hu ua tub ceev xwm. As well as matched antennas to the kit.
Tsaug.
7. Do you have a wireless video transmitter, receiver, rov qab ua dua, or relay for the forest?
Have you already tested your radio system inside the forest? I’m asking this for you because if you’ve already tested this, your experience will help a lot in my research.
Our idea is to stay at a fixed point outside the forest with the transmitter and control the ground robot, fix the receiver on the ground robot, and send it to the forest. We have developed another device that we are going to place on top of the treetops with a drone, and in this device, we can place the signal repeater that you have said you have.
Could you send me the radius models that you have available for this purpose and the technical specifications for me to check, thov?
For the ground receiver, D1 is a TTL serial port: black is GND, yellow is RX, red is TX
D2 and D3 are Sbus in interfaces: black is GND, yellow is Sbus in, and red is floating.
- Ground Receiver ( default IP is 192.168.1.13, tsis pub siv)
D1 is TTL, D2, and D3 are Sbus in (black is GND, yellow is Sbus in, and red is floating); - Aircraft Repeater / relay ( default IP is 192.168.1.11, hab txhawb node, also called relay)
D1 is TTL, D3 is Sbus out (black is GND, yellow is Sbus out, red is floating), D2 is useless; - Unmanned Ship transmitter ( default IP is 192.168.1.12, tsis pub siv)
D1 is TTL, D2 is Sbus out (black is GND, yellow is Sbus out, red is floating), D3 is useless;
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I’m looking for a long range repeater for a wifi drone like the tello which I can control via phone
Tsaug. We don’t off the repeater drone. We just offer a complete drone repeater solution, including the drone wireless video data transmitters, rov qab ua dua, and receiver.
Our products are suitable who want to design and assemble the drone by themselves. It is not suitable for using already drone systems, like the DJI Tello drone.