ZKManet2421UM is a compact and portable airborne device with HD and stable image quality. It adopts the current leading OFDM modulation technology, allowing for capturing high-quality images in high-speed motion and real-time transmission over non-line-of-sight (NLOS) conditions. During transmission, encryption is applied to the images and data, supporting frequency hopping at 800MHz, 1.4GHz, and 2.4GHz, with a transmission rate of 30Mbps and a range of 5-15KM for air-to-ground transmission. It is well-suited for long-term and high-data-flow wireless transmission applications.
* 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 5-15km 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
RF Parameters | Frequency | 800MHz/1.4GHz /2.4GHz |
Bandwidth | 1.4MHz/3MHz/5MHz/10MHz/20MHz | |
RF Channel | 1T2R | |
Output Power | 25dBm | |
Range | 5~15km (LOS) | |
Network Parameters | Network Mode | One-to-one and one-to-many |
Data Rate | 30Mbps(Max) | |
Encryption | ZUC/SNOW3G/AES Optional | |
Physical/ Environment | Dimensions | 102*52*21.5mm |
Weight | 124g | |
Working Temp | -40ºC~+65ºC | |
Electronic Parameters | Power Supply | DC12V |
Power Consumption | <5W | |
Other | Data Interface | RJ45*2,TTL*1 |







- Power Cables - power supply input line, red is VDD, black is GND
- Data UART Port (GND, Rx, Tx) - 3.3V TTL
- 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.
- Micro USB Port - For device software maintenance.
- Indicator (Red) for Power - Always on during normal operation.
- Indicator for Ethernet Port 2 - Flashes according to the data flow when works normally.
- Ethernet Port 2 (RN, RP, TN, TP) - Ethernet port 1 and 2 are internally bridged.
- Indicator for Ethernet Port 1 - Flashes according to the data flow when works normally.
- Ethernet Port 1 (RP, RN, TP, TN) - Ethernet port 1 and 2 are internally bridged.
- Product Label
- Air Inlet - for the cooling fan
- ANT2 Port - Auxiliary antenna, works as auxiliary receiving, NO transmitting.
- ANT1 Port - Main antenna, work mode is TDD transmitting/receiving.

It is widely used in important departments such as security, civil air defense, civil defense, fire protection, emergency rescue departments and forest fire prevention, transportation, customs, railways, oil fields, mines, water conservancy, electric power, finance, live broadcast of TV stations, etc.

Zhongke Lianxun (Shenzhen) Co.,Ltd has multiple patents with independent intellectual property rights, has established a sound quality system that comply with ISO9001 standards, and strictly produces products in accordance with national and internationally recognized standards such as CCC, CE, FCC, etc. It has obtained the Radio Transmission Equipment Model Approval Certificate issued by the Information Technology of China and has passed the wireless product testing certification of Public Security.






