Zastrzeżenie
- Please read the user’s manual carefully before use. Be sure to pay attention to the warnings and understand all points completely.
- Please strictly abide by the local radio frequency management regulations.
- Please follow the installation steps in the manual to use this product. Our company and agent will not take legal responsibility for the damage of equipment or personnel caused by the installation and modification of users.
- This copyright of this manual belongs to Great Mainlink Tech Co., LTD. No one may make copies without written consent.
Uwaga
Attention to installation
1. Przed włączeniem, make sure the antenna connection is reliably . W przeciwnym razie, it will cause damage to the device.
2. Make sure that the voltage is within the range of use.
3. Please pay attention to the EMC of all the electronic equipments on your drone.
4. It is recommended that the antenna should be installed downward and keep the antenna away from the metal on the drone.
5. Make sure to use the matching antenna.
Przed użyciem
1. Make sure that all cables are connected correctly and firmly.
2. No foreign objects (np. liquids, sand, itp.) can be entered inside the device.
3. It takes 15 seconds for the device to start. Video and data cannot be transferred until the device has finished booting.
4. Please ensure that the environment in which the equipment is used is free of other electromagnetic interference.
5. When the signal weakens, you can improve the effect by changing the heading direction of the antenna.
Lista rzeczy do spakowania
Device X 2

Przegląd
Industry drone market is developing very fast in recent years. The fight time and distance of drones are getting longer and longer. MK22/MK55, a long-range wireless transmission system, is designed for VTOL fixed wing and other long-range drones. The system can transmit video, fight control data, dane sterujące gimbala, and RC data simultaneously. With the advantage of high level intergration and powerful function, MK22/MK55 is a typical good product to meet long-range transmission requirements.
There are two frequency bands——800MHz、1.4GHz and 2.4GHz. Users can choose according to their needs. Please choose the suitable frequency band according to local regulations.
MK22 can transmit data and video to 22km, MK55 can transmit data and video to 55km, making it very suitable for long range drone.

If you use our recommend ground station, you only need one cable with connector to connect the device and your ground station.
*1Test under LOS and no interference conditions。
cechy
Long distance Modulation
-MK22 Up to 22km @ LOS– OFDM
-MK55 Up to 55km @ LOS
Video interface Data interface
– Ethernet *1 – UART (TTL/RS232)/SBUS,
Hopping/Fixed Frequency Pasmo częstotliwości
-Naprawił: user defined – 800MHZ/1,4 GHz/2,4 GHz
-Hopping: automatyczny Tryb pracy
BW – Air unit can be :Point to point mode
-5/10/20 MHz Repeater mode
Temperatura pracy Power range
– 40℃ ~ + 70 ℃ – DC 9~28V Battery 3S~6S
M52 Interface Description

Jednostka powietrzna
widok z boku
Ethernet
| Numer | Character | Opis | Wejście/wyjście |
| 1 | T+ | TX+ | O |
| 2 | T- | TX- | O |
| 3 | R+ | RX+ | ja |
| 4 | R- | RX- | ja |
2. UART1
| Numer | Character | Opis | Wejście/wyjście |
| 1 | sol | GND | I / O |
| 2 | R | RS232 RX | ja |
| 3 | T | RS232 TX | O |
3. UART2
| Numer | Character | Opis | Wejście/wyjście |
| 1 | sol | GND | O |
| 2 | R | TTL RX | ja |
| 3 | T | TTL TX | O |
4. Moc
| Numer | Character | Opis | Wejście/wyjście |
| 1 | sol | GND | I / O |
| 2 | V | +Vcc(9v~28v) | ja |
5. SBUS1
| Numer | Character | Opis | Wejście/wyjście |
| 1 | S | SBUS OUT | O |
| 2 | V | +5v(I max 1A) | O |
| 3 | sol | GND | I / O |
6. SBUS2
| Numer | Character | Opis | Wejście/wyjście |
| 1 | S | SBUS OUT | O |
| 2 | V | +5v(I max 1A) | O |
| 3 | sol | GND | I / O |
7. Wskaźnik mocy
Ten wskaźnik jest solidny zielony, gdy jednostka powietrza się uruchamia.
8. wskaźnik połączenia
| Opis wzoru LED |
| Ustanowiony jest solidny zielony link bezprzewodowy |
| light off Wireless link is lost |
9. Wskaźnik stanu
| Wzór diody LED (mrugnięcie tylko podczas uruchamiania) Opis |
| Migać 2 times Initialization OK, Częstotliwość wynosi 1,4GbLink 1 time Initialization OK, Częstotliwość wynosi 800 m |
| Migać 3 times Switch mode (Swith from air to ground, vice verse) |
| Blink slow all the time Enter configuration mode |
| Blink fast all the time Device abnormal |
10. SMA antenna connector.

- Fiber glass antenna.
- Wyświetlacz OLED.
- Bateria
- Złącze.

| Numer | Opis | Wejście/wyjście |
| 1 | Rx+ | ja |
| 2 | Rx- | ja |
| 3 | Tx+ | O |
| 4 | Tx- | O |
| 5 | UART1 TX (RS232) | O |
| 6 | UART1 RX (RS232) | ja |
| 7 | UART2 TX (RS232) | O |
| 8 | UART2 RX (RS232) | ja |
| 9 | NC | |
| 10 | RC1_IN | ja |
| 11 | RC2_IN | ja |
| 12 | +5v | O |
| 13 | GND | I / O |
| 14 | GND | I / O |
| 15 | GND | I / O |
| 16 | GND | I / O |
| 17 | GND | I / O |
| 18 | GND | I / O |
| 19 | VCC (9v~28v) | ja |
| 20 | VCC (9v~28v) | ja |
Specyfikacja
| Kategoria | Pozycja | Szczegół |
| BezprzewodowyWydajność | Pasmo częstotliwości | 800MHz/1,4 GHz |
| Zakres częstotliwości | 800MHz:806MHZ ~ 825 MHZ1,4GHz:1427MHz~1447MHz2.4GHz: 2400~2480MHz | |
| Przepustowość łącza | 5MHz/10MHz/20MHz | |
| Modulacja | OFDM | |
| EIRP | MK22: 30dBm±1dBMK55: 33dBm ± 1dB | |
| Wrażliwość | ≤-95dBm | |
| Zasięg | MK22: 22kmMK55:55km*1 | |
| Szybkość transmisji | 30Mbps @ 20MHz | |
| Zakres mocy | DC 9 ~ 28V | |
| Pobór energii | ≤8.5W | |
| Berło | Antena | Szkoła *2 |
| Moc | XT30 | |
| UART | TTL 3,3 V,1 bit startu, 8 bit danych, 1 bit stopu, brak parzystości., Szybkość transmisji 115200 (domyślnie),57600, 38400, 19200, 9600 | |
| UART1 i UART2 | ||
| SBUS | SBUS_IN | |
| SBUS_OUT | ||
| Ethernet | 4 Kołek | |
| Przycisk | 1 | |
| Przełącznik | Do przełącznika powietrza i ziemi | |
| Antena | Berło | Szkoła |
| Rodzaj | Powietrze:Klej antena kleje 20 cmm ziemi:Fiber glass antenna, penal antenna | |
| polaryzacja | Pionowy | |
| Zdobyć | Powietrze:2.5dbiground:12dBi | |
| SWR | ≤2.0 | |
| Środowisko | Temperatura pracy | -40℃ ~ + 70 ℃ |
| Temperatura przechowywania | -40℃ ~ + 85 ℃ | |
| Wilgotność | 5~ 95%,bez kondensacji | |
| Wygląd zewnętrzny | Rozmiar | 112 X 63.5 X 19 mm |
| waga | 143sol |
Przegląd
The drone industry has grown rapidly in recent years, with significant improvements in endurance, flight range, and payload capacity. As drones are increasingly used in fields such as aerial surveying, mapowanie, monitorowanie środowiska, logistyka, i bezpieczeństwo, the need for reliable long-range communication systems has become a critical requirement. Plik MK22 and MK55 Long-Range Wireless Transmission Systems are designed specifically to meet these demands.
Built for VTOL (Startu pionowy i lądowanie) stałopłat, multi-rotor UAVs, and other long-range drone platforms, the MK22/MK55 systems provide robust and secure wireless transmission of Wideo w czasie rzeczywistym, dane kontroli lotu, gimbal control signals, i RC (pilot) dane jednocześnie. With their high integration level, stabilna wydajność, and versatile frequency band options, these systems are ideal solutions for both professional and industrial UAV applications where dependable communication is essential.
The MK22 system supports data and video transmission over 22 kilometrów, while the MK55 is capable of reaching 55 kilometrów under line-of-sight (THE) and low-interference conditions. These distances make them highly suitable for applications where beyond visual line of sight (BVLOS) operations are required.
Both models support three selectable frequency bands—800 MHz, 1.4 GHz, i 2.4 GHz. Users can select the appropriate band depending on local regulatory requirements and operational needs. This flexibility ensures compliance across regions and allows optimization for different environmental conditions.
When paired with the recommended ground station, the system can be connected easily using a single cable with a dedicated connector, simplifying integration and setup.
Kluczowe cechy
- Transmisja na duże odległości
- MK22: Obsługuje do 22 km Zakres transmisji (THE).
- MK55: Obsługuje do 55 km Zakres transmisji (THE).
- Both systems use advanced OFDM modulation, ensuring efficient bandwidth use and robust signal stability.
- Wysoka szybkość transmisji danych & Małe opóźnienia
- Data throughput up to 30 MBPS @ 20 MHz pasmo.
- Zdolne do transmisji Wideo HD, telemetria, i sygnały kontrolne z minimalnym opóźnieniem.
- Projekt wielopiętrowego
- Ethernet for video/data transmission.
- UART (TTL/RS232) for telemetry and control data.
- SBUS input and output for RC control integration.
- HDMI input/output support on air and ground units for high-definition video.
- Flexible Frequency Selection
- Fixed or automatic hopping modes.
- Pasma częstotliwości: 800 MHz, 1.4 GHz, i 2.4 GHz.
- User-defined fixed channel configuration supported.
- Tryby pracy
- Point-to-point mode for direct link communication.
- Tryb repeater for extended coverage or relay-based communication.
- Chropowaty & Reliable Performance
- Temperatura robocza: -40℃ do +70 ℃.
- opcjonalna klasa odległości: DC 9 ~ 28V, compatible with 3S–6S LiPo batteries.
- Pobór energii: ≤8.5W, optimized for UAV onboard use.
- Wskaźniki & Status Feedback
- Wskaźnik mocy: Solid green during boot.
- wskaźnik połączenia: Shows wireless connection status.
- Status indicator: Provides initialization, konfiguracja, and error signals via LED blinking patterns.
- System antenowy
- Jednostka powietrzna: Antena na klej, 20 cm, Lekki dla dronów.
- Jednostka naziemna: High-gain fiberglass or panel antenna, designed for long-range reception.
- Polaryzacja: Pionowy, with gain of 2.5 dBi (powietrze) i 12 dBi (grunt).
Specyfikacja techniczna
Wireless Performance
- Pasma częstotliwości: 800 MHz / 1.4 GHz / 2.4 GHz
- Zakres częstotliwości:
- 800 MHz: 806–825 MHz
- 1.4 GHz: 1427–1447 MHz
- 2.4 GHz: 2400–2480 MHz
- Opcje przepustowości: 5 MHz / 10 MHz / 20 MHz
- Modulacja: OFDM
- Moc wyjściowa (EIRP):
- MK22: 30 dBm ±1 dB
- MK55: 33 dBm ±1 dB
- Wrażliwość: ≤ -95 dBm
- Maksymalna szybkość danych: 30 MBPS @ 20 MHz
Moc & Berło
- Napięcie wejściowe: DC 9 ~ 28V
- Wsparcie baterii: 3S–6S LiPo
- Pobór energii: ≤8.5W
- Interfejsy:
- SMA antenna connectors × 2
- Ethernet (4-kołek)
- UART1 (RS232) / UART2 (TTL)
- SBUS_IN / NA ZEWNĄTRZ
- Power via XT30 connector
- Control Switch: Air/Ground mode switch
Antena
- Jednostka powietrzna: Lightweight glue-stick antenna, 20 cm, 2.5 DBI Gain
- Jednostka naziemna: Fiberglass or panel antenna, 12 DBI Gain
- SWR: ≤ 2.0
Środowiskowy
- temperatura robocza: -40℃ ~ +70 ℃
- Temperatura przechowywania: -40℃ ~ +85 ℃
- Wilgotność: 5% ~ 95%, bez kondensacji
Fizyczny
- wymiary: 112 × 63.5 × 19 mm
- Waga: 143 sol
Uwaga: Range tests were conducted under line-of-sight (THE) and no-interference conditions.
Aplikacje
The MK22/MK55 long-range transmission systems are designed for a wide range of industrial and professional UAV applications where reliability, dystans, and stability are critical. Typowe przypadki użycia obejmują:
- Aerial Surveying & Mapowanie: High-resolution video and telemetry data transfer over extended distances.
- Agricultural Monitoring: Real-time crop health analysis and environmental monitoring in wide fields.
- Bezpieczeństwo & Nadzór: Organy ścigania, Patrol graniczny, oraz monitorowanie infrastruktury.
- Szukanie & Ratunek (SAR): Long-range communication support in disaster zones.
- Logistics & Delivery Drones: Stable transmission of control and monitoring signals for BVLOS operations.
- Wojskowy & Rekonesans: Secure and reliable wireless data/video transmission for tactical UAVs.
Opcjonalne konfiguracje
- Opcje pasma częstotliwości: Select between 800 MHz, 1.4 GHz, lub 2.4 GHz based on local regulations.
- Opcje anteny: Ground station antennas available in panel, fiberglass, or high-gain directional configurations for maximum range.
- Opcje wyjścia wideo: HDMI output for HD display or Ethernet-based data streaming.
- Integracja systemu: Customization available for different UAV platforms and control systems.

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