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5km Mini Drone Video Data Link FHSS 2.4GHz DC12V

5km Mini Drone Video Data Link FHSS 2.4GHz DC12V
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Modulation: BPSK, 16QAM And 64QAM
Frequency: 800HMz/1.4GHz/2.4GHz
Range: 5-20km
Serial Port: UART TTL232
Baud Rate: 115200bps
Link Latency: 10ms
Power Input: DC 12V
High Light:

wireless video sender


camera wireless transmitter

Basic Infomation
Place of Origin: Shenzhen China
Brand Name: OEM / LinkAV
Certification: CE
Model Number: LKAV-3621
Payment & Shipping Terms
Packaging Details: Brown Carton
Delivery Time: Negotiable
Payment Terms: T/T, PayPal
Supply Ability: 1000pcs/Month
Product Description

5km Mini Drone Video Data Link FHSS 2.4GHz DC12V



The LKAV-3621 is a mini size OFDM IP radio works at 800MHz, 1.4GHz and 2.4GHz bands, with frequency hopping technology (FHSS) to ensure good stability even in rapid movement condition. It supports data rate up to 30Mbps and transmission range up to 10-20km air-to-ground, is ideally suit for long range and high data stream wireless transmission applications, such as Surveillance/UAV/USV/Robotics.



■TDD-OFDM modulation

■Supports 3 bands (800HMz/1.4GHz/2.4GHz)

■Supports FHSS inside each band

■1.4/3/5/10/20MHz five channel bandwidths

■Max 30Mbps@20MHz throughput

■Supports one-to-one and one-to-many transmission

■Supports serial data and video at the same time

■Up to 10-20km LOS (air-to-ground)

■WebUI for management

■AES128 encryption (user-defined)

■Uplink and downlink stream control

■Compact size and light weight

■Rugged aluminum alloy housing



Frequency 806~826MHz,1428~1448MHz,2401~2481MHz
RF Bandwidth 1.4MHz/3MHz/5MHz/10MHz/20MHz
Output Power 25dBm (300mw)
800MHz Sensitivity




1.4GHz Sensitivity




2.4GHz Sensitivity





Max Throughput Max 30Mbps@20MHz
Modulation BPSK, 16QAM and 64QAM (TDD-OFDM)
Networking Mode One-to-one and one-to-many (one to Sixteen max)
Antenna Interface 2x SMA F Connector
Ethernet Interface 2x Ethernet Port (100M)
Serial Port 1x UART Port (TTL232)
Baud Rate 115200bps
Video Input IPCam
Channel Latency 10ms
Encryption AES128 (User-defined)
Movement Speed Supports no less than 120km/h
Power Input DC 12V
Working Current ≤0.5A
Power Consumption <6W
Dimensions 102*52*21.5mm
Weight 124g
Working Temp. -20℃ ~ +55℃
Storage Temp. -40℃ ~ +65℃


Front View

5km Mini Drone Video Data Link FHSS 2.4GHz DC12V 0

① Power Cables - power supply input line, red is VDD, black is GND

② Data UART Port (GND, Rx, Tx) – 3.3V TTL

③ Link Status Indicator - When the device works as an access node, if the connection with the central node is normal, the indicator will be always on. When the device works as a central node, this indicator is off.

④ Micro USB Port - For device software maintenance.

⑤ Indicator (Red) for Power - Always on during normal operation.

⑥ Indicator for Ethernet Port 2 – Flashes according to the data flow when works normally.

⑦ Ethernet Port 2 (RN, RP, TN, TP) - Ethernet port 1 and 2 are internally bridged.

⑧ Indicator for Ethernet Port 1 – Flashes according to the data flow when works normally.

⑨ Ethernet Port 1 (RP, RN, TP, TN) - Ethernet port 1 and 2 are internally bridged.


Rear View

5km Mini Drone Video Data Link FHSS 2.4GHz DC12V 1

① Product Label

② Air Inlet - for the cooling fan

③ ANT2 Port - Auxiliary antenna, works as auxiliary receiving, NO transmitting.

④ ANT1 Port – Main antenna, work mode is TDD transmitting/receiving.


Serial Communication

Please use an USB to TTL serial 3.3V adapter cable to connect your computer and the device (TTL)

5km Mini Drone Video Data Link FHSS 2.4GHz DC12V 2

On your serial debugging tool please select the correct serial port, and other settings are as below:

Baud: 115200bps

Data: 8 Bits

Parity: None

Stop: 1 Bit

5km Mini Drone Video Data Link FHSS 2.4GHz DC12V 3


Application Notes

It can realize long-distance two-way wireless communication, point-to-point two-way communication, or point-to-multipoint two-way communication. In point-to-multipoint communication, if the communication between two access nodes needs to be transferred through the central node, each node is in the same wireless local area network, and all access nodes communicate with the central node to share the wireless bandwidth, and the device automatically allocate the system rate evenly. The data transmission from the central node to the access node is called downlink, and the data transmission from the access node to the central node is called uplink. In point-to-point or point-to-multipoint communication, the downlink and uplink share the wireless bandwidth. When the device is shipped, the default setting is the ratio of uplink rate to downlink rate = 4:1. Therefore, if using the device to transmit IP Camera video, the IP camera should be connected to the access node. The device will automatically and dynamically adjust the wireless transmission rate according to the carried data stream. When the amount of carried data is smaller, the transmission distance will be longer under the same conditions. Therefore, when using the device to transmit IP Camera video, it is possible to increase the wireless transmission distance by appropriately reducing the IP Camera video encoding bit rate.


5km Mini Drone Video Data Link FHSS 2.4GHz DC12V 4


5km Mini Drone Video Data Link FHSS 2.4GHz DC12V 5


Package Content

For reference only, subject to change for each project.

Item Name Description Qty
TX Transmitter (Access Node) 1
RX Receiver (Central Node) 1
Rubber Antenna 1.4GHz, 3dBi, SMA Male 2
FRP Antenna 1.4GHz, 5dBi, N type Male 2
Ethernet Cable 4-pin to RJ45, 2m 2
Extension Cable SMA M to SMA F, 30cm 2
Extension Cable SMA M to Type N F with flange, 50cm 2
TTL 3-pin Cable TTL 3-pin to 3-pin cable, 10cm 2
Power Supply 12V/1A DC power supply 2


About LinkAV

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Founded in 2005, LinkAV has been dedicating to design and manufacture mobile wireless video/data transmission systems including COFDM, IP MESH and 4G-LTE series, with a group of professional engineers to provide tailor-made service (OEM). LinkAV serves a diverse, high demanding customer base from police/military to ordinary citizens, from UAV to UGV/Robots, from oil field to forest, from overseas to mainland China.

LinkAV is a China leading manufacturer (OEM) of innovative wireless communications and information systems. Our advanced data link systems are ideal for critical communications in tactical unmanned systems such as unmanned ground vehicles (UGVs), unmanned aerial vehicles (Drones, UAVs) and unmanned surface vehicles (USVs), and are designed with portability and reliability foremost in mind.


Our Advantages

■ Over 15 years experiences in wireless communication solutions.

■ High product quality, competitive price and low MOQ

■ Excellent pre-sale and after-sale technical team.

■ Quick response and fast delivery.

■ OEM supported.



Q1: Are you a manufacturer or a trading company?

We're professional manufacturer specializing in wireless transmission systems.

Q2: Why should I choose you?

You'll get competitive price, prime quality, satisfied service and long warranty.

Q3: What kind of product service can I have?

OEM & ODM service.

Q4: What kind of warranty do you offer?

We offer one-year-warranty and lifelong maintenance.

Q5: What're the payment terms?

We accept bank transfer, PayPal, or cash payment.

Q6: Packaging & Shipping?
Neutral brown carton & Ship via DHL, FedEx, UPS, TNT or by air/sea.

Q7: How long for delivery?
1-3 weeks for regular model and 3-5 weeks for customized model.

Q8: Can I order 1 sample for test?

Yes, we welcome sample order, mixed samples are acceptable.

Q9: Do you have any MOQ limit?

No limit, 1pc is acceptable.

Q10: Is it OK to print my logo on the product?

Yes, please inform us formally before production and confirm the design firstly


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Tel : 0086 15817349508
Fax : 86-755-83735058
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