Video Data Link With 22km 55km 80km 100km Long Transmission Range
For Drone UAV
Quick Detail:
- TDD OFDM full duplex wireless transceiver for video data Link.
- Maximum 30Mbps @20MHz bandwidth.
- Networking type communication: point-to-point and
point-to-multipoint Networks or IP Mesh networking.
- Web UI or Serial uart for management.
- 2 Ethernet and 3 channel uart for UAV data link.
- 22km~100km Long distance wireless transceiver with 2W or 5W RF
power.
Description:
HCL536 Video Data Link was designed for video data wireless
transmission with two- way wireless data link. It works at 800MHz
or 1.4GHz bands, with frequency hopping spread spectrum automatic
technology (FHSS) to make sure better stability signal
communication.
Specifications:
| Video Data Link With 22km 55km 80km 100km Long Transmission Range
For Drone UAV |
| Modulation | TDD OFDM |
| Frequency | 806~826MHz,1428~1468MHz,1420~1530MHz |
| FHSS | Support |
| Bandwidths | 1.4/3/5/10/20MHz |
| Throughput | Maximum 30Mbps@20MHz |
| RF Transmissioin Power | 2W or 5W |
| Constellation | QPSK,16QAM,64QAM self adaption |
| Sensitivity | -108dBm(1Mbps) |
| Ethernet ports | 2 * Ethernet ports |
| Serial ports | 3 channels,3*RS232, 3*TTL or 2*RS232/ TTL+ 1*Sbus |
| Transmission Range | 22~100km (UAV to Ground) |
| Management | Web UI and Control Uart |
| Encryption | AES128 |
| Networking Mode | Point to Point, Point to Multipoint,Relay, Mesh |
| Movement Speed | Support no less than 300km/h |
| Power Input | 12~18V(2W), 24~28V(5W) |
| Power Consumption | <12W(RF Power 2W), <22W(RF Power 5W) |
| Dimensions | 103.4*61.4*22mm |
| Weight | 142g |
| Input/ Output | Description |
| Ethernet 1 | 4Pin ZH1.5mm connector, bridged with Ethernet2 |
| Ethernet 2 | RJ45 connector, bridged with Ethernet1 |
| Uart* 3 | 3Pin GH1.25mm lockable connector*3, 3 channel uart, RS232/TTL/Sbus
optional |
| Power in | XT30PW-M connector |
| ANT 1 | Tx/Rx Antenna port, SMA female |
| ANT 2 | Rx Antenna port, SMA female |
Wireless Networking with HCL536:
HCL536 video data link supports 2 operating modes: Access Node or
Central Node.
It can be managed through web UI. HCL536 supports features of
maximum 16 Access Nodes connected to a Central Node. All nodes are
in the same wireless local area network and share the entire
transmission bandwidth (maximum 30 Mbps @ 20 MHz throughput).
The data from the central node to the access node is referred to as
downlink, while the data from the access node to the central node
is called uplink. The ratio of uplink and downlink data streams can
be controlled through the Web UI. When using HCL536 for
point-to-point transmission, the uplink and downlink data will
share the entire transmission bandwidth (maximum 30Mbps @ 20MHz
transmission rate).
HCL536 video data link supports networking mode: Point -to-Point,
Point-to-Multipoint, Relay, and Mesh (specify mesh version when
make an order).
Point-to-Point Network:
Point to Multipoint Network:
Relay Network:
Mesh networking (Specify)
FAQ
Q1. It seems to support IP camera, but I want HDMI or SDI video
input?
A: Yes, the default video input is IP RJ45 Ethernet port, if your
camera only has HDMI, SDI, AHD or AV output, we suggest to buy our
mini encoder device to encode the video audio signal into digital
data for transmission. At the receiver end, you can connect it
directly to your computer or NVR. If you want to output to HDMI
monitor, you can also buy our decoder device to convert the digital
data back into HDMI video and audio signals.
Q2. For the 800MHz and 1.4G band? Which one would be better?
A: If your local area has DVB-T or DVB-T2 digital television
signal, and TV frequency range is 170-860Mhz, so choose 1.4G would
be better. Moreover, GPS antenna receives the GPS signal and the
GPS direction on the drone is up, the transmitter antennas are
pointing down to send the signal to the ground. So 1.4G frequency
effects on GPS is negligible.
Q3. Does it support using multiple cameras on the transmitter to
only one receiver? For example, use 3 IP cameras on the
transmitter.
A: Yes, it supports. There are two solutions for the multiple
cameras on transmitter to one receiver.
1. 4 IP cameras -> Net Hub -> Transmitter <===>
Receiver -> Computer Screen
2. 4 IP cameras -> NVR HDMI output -> HDMI encoder IP output
-> Transmitter <===> Receiver -> computer screen.
Q4. Does the transmitter on the air give failsafe command to the
flight controller when the connection between air and ground will
be lost?
A: The serial port of our wireless video transmission link is
transparent, no data is actively sent to the flight controller.
This is controlled by the ground station. It won't send failsafe
command, but you can see the link working status led from the
signal indicator as below:
| Link LED | Wireless link status |
| No light | This node is not connected with the wireless network |
| Red light | The wireless link signal is weak |
| Orange light | The wireless link signal is in middle |
| Green light | The wireless link signal is strong |
Flight controller doesn't get the information, but you can see the
link status LED light, if it is Orange or Red, you should control
the UAV back in advance. You can also get the RSSI values from
below window:
Q5. Can the transmitter and receiver be interchanged for use with
change in the setting?
A:Yes, The difference between the transmitter (on the drone ) and
receiver (on the ground) is:
- Device type: transmitter is the access node and the receiver is the
central node.
- Rate ratio of the downlink and up link. Over 30km, the best rate
ratio is 4:1 or 3:2.
