VDLINK FHSS TDD Bidirectional Video/Data Transmission System

Note：The FHSS300 is not available in an integrated version due to size limitations.

The VDLINK FHSS TDD Bidirectional Video/Data Transmission System is a series of self-developed TDD bidirectional video and data transmission devices. It features real-time interference detection, adaptive frequency selection, adaptive bit rate, automatic retransmission, and automatic power control, significantly improving multipath resistance, interference resistance, reliability, stability, and low latency. This product is ideal for firefighting, inspection, monitoring, and other scenarios, offering four transmission distance options under optimal line-of-sight conditions: 100km, 150km, 200km, and 300km.

AirLink is an integrated TDD bidirectional video/data ground receiving system. AirLink comes in two structural models: AirLink-I and AirLink-II. Both devices support various interfaces, including Wi-Fi, Ethernet, serial, SBUS, and asynchronous RS422. They also support independent battery packs and external power supplies, making them easy to assemble and disassemble. AirLink-I and AirLink-II are available in different transmission power versions, ranging from 2W to 20W, and come equipped with features such as real-time environmental noise detection, adaptive bit rate, automatic frequency selection, automatic retransmission, automatic antenna selection, automatic power control, manual frequency pairing, and multi-unit coexistence.
AirLink-I uses two omnidirectional antennas. Under line-of-sight conditions, it can support transmission distances of up to 30km with 2W, 50km with 5W, 80km with 8W/10W, and 100km with 20W power.
AirLink-II uses a combination of directional and omnidirectional antennas, providing better transmission performance compared to AirLink-I. Under line-of-sight conditions, AirLink-II can support a maximum transmission distance of 60km with 2W power, 100km with 5W/8W power, 150km with 10W power, and 200km with 20W power.

Key Features:
Long-distance transmission
High bandwidth transmission
Automatic relay transmission
Multi-interface design: Equipped with dual Ethernet ports and four serial ports, supporting RS232/TTL/RS422/SBUS.
Adaptive frequency selection: Automatically detects interference signals and selects the optimal frequency point in real time.
Automatic retransmission: Automatically retransmits burst error data to enhance data reliability.
Adaptive bit rate: Automatically adjusts modulation based on real-time signal quality.
Automatic power control: Adjusts transmission power for close-range communication to reduce power consumption.
Automatic antenna selection: Automatically selects the optimal antenna for transmission based on obstructions.
Dynamic up/downlink allocation: Automatically adjusts the uplink and downlink bandwidth ratio based on the actual data volume.
Multi-unit coexistence: Supports up to six sets of devices operating on fixed frequencies simultaneously.
Frequency pairing function: Allows frequency pairing via software configuration or hardware button.

Your Purchase Includes：
1x FHSS Ground Unit
1x Air Unit
2xJ30J-25pin cable
2x 2.5dBi Little glue stick antenna
2x 1m small antenna extension cable
1x All-in-one ground terminal antenna kit

AirLink-I
1x AirLink-I Ground Station
1x Lemo-4PIN External Power Cord
1x Lemo-7PIN Serial Cable
1x Lemo-8PIN SBUS Cable
1x Lemo-8PIN Network Cable
2x 1350-1470MHz 6dBi Fiberglass antenna
1x Mounting Bracket+Square clip
1x 4S Battery Pack (Optional)

AirLink-II
1x AirLink-II Ground Station
1x Lemo-4PIN External Power Cord
1x Lemo-26PIN Data Cable
1x 1350-1470MHz 6dBi Fiberglass antenna
1x Mounting Bracket+Square clip
1x 4S Battery Pack (Optional)

Air Unit
1x Air Unit
2x 1350-1470MHz 2.5dBi little fiberglass antenna
2x 1m Small antenna extension cable
1x J30J-25PIN cable
1x XT30 to XT60 power cord（Except SN-40）