VM21 Mesh Video Link

VM21 is a Mesh radio that integrates key functions such as video, data, and remote control signal transmission. It supports a maximum of 32 nodes for networking, featuring up to 31 hop routing capabilities. Any two nodes within the network can communicate directly.

Based on the LTE wireless communication standard, VM21 adopts critical technologies such as Orthogonal Frequency Division Multiplexing (OFDM) and Multi-Input and Multi-Output (MIMO), supporting various bandwidth allocations. It covers three frequency bands: 2.4G, 1.4G, and 800MHz, and achieves a maximum transmission power of 25dBm with a transmission distance of up to 10km.

Key Features

Multi links in one module

Video&telemetry data link

Light weight, compact size

100g

3 frequencies for choice

800MHz, 1.4GHz, 2.4GHz

High throughput

20Mbps

Advanced technology

OFDM, MIMO

LAN port for video input and output

Transparent data transmission

TTL, RS232 optional

Adjustable RF power

-40-25dbm

Frequency hopping

Hop between frequency points

Network mode

Mesh

Encryption

AES128

V31 data link with OFDM and MIMO, providing a high-quality and stable communication link
V31 data link with OFDM and MIMO, providing a high-quality and stable communication link
The V31 module for video links offers adjustable RF power
The V31 module for video links offers adjustable RF power
AES128 encryption providing a high level of security for the communication between drone and GCS
AES128 encryption providing a high level of security for the communication between drone and GCS

Network Port Expansion Dock

Extend serial and LAN ports

Product Parameters

Overall Parameters

Overall weight

Dimension

Operating Temperature

Transmission range

Antenna

100g(exclude antennas)

85mm(L)*55mm(W)*20mm(H)

-10℃-+50℃

10km@LOS condition, Air to Ground(single hop range)

4*glue stick antennas& 2*fiber-glass epoxy antennas

Frequency band

RF power

Transmission latency

Bandwidth

Power supply voltage

Data throughput

Communication mode

Nodes

800MHz, 1.4GHz, 2.4GHz

-40~25dBm

40ms from interface to interface

1.4MHz/3MHz/5MHz/10MHz/20MHz

7.4-12V

20Mbps

Point to point, point to multipoint, mesh

Up to 32 nodes

Interfaces

Video input/output

SBUS port

Serial port

1*LAN port

2 SBUS IN(Ground); 2 SBUS OUT(Air)

TTL(standard), RS232(optional)