سلب مسئولیت
- 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.
احتیاط
Attention to installation
1. قبل از روشن شدن, make sure the antenna connection is reliably . در غیر این صورت, 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.
قبل از استفاده
1. Make sure that all cables are connected correctly and firmly.
2. No foreign objects (به عنوان مثال،. liquids, شن, و غیره.) 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.
لیست بسته بندی
Device X 2

بررسی اجمالی
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, داده های کنترل گیمبال, 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。
امکانات
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 باند فرکانس
-درست شد: user defined – 800مگاهرتز/1.4 گیگاهرتز/2.4 گیگاهرتز
-Hopping: اتوماتیک حالت کار
BW – Air unit can be :Point to point mode
-5/10/20 MHz Repeater mode
دمای کار Power range
– 40℃ ~ + 70 ℃ – DC 9~28V Battery 3S~6S
M52 Interface Description

واحد هوا
side view
شبکه محلی کابلی
| عدد | Character | شرح | ورودی/خروجی |
| 1 | t+ | TX+ | O |
| 2 | T- | TX- | O |
| 3 | r+ | RX+ | من |
| 4 | R- | RX- | من |
2. UART1
| عدد | Character | شرح | ورودی/خروجی |
| 1 | G | GND | درجه فاصله اختیاری |
| 2 | R | RS232 RX | من |
| 3 | T | RS232 TX | O |
3. UART2
| عدد | Character | شرح | ورودی/خروجی |
| 1 | G | GND | O |
| 2 | R | TTL RX | من |
| 3 | T | TTL TX | O |
4. قدرت
| عدد | Character | شرح | ورودی/خروجی |
| 1 | G | GND | درجه فاصله اختیاری |
| 2 | V | +Vcc(9v~28v) | من |
5. SBUS1
| عدد | Character | شرح | ورودی/خروجی |
| 1 | S | SBUS OUT | O |
| 2 | V | +5v(I max 1A) | O |
| 3 | G | GND | درجه فاصله اختیاری |
6. SBUS2
| عدد | Character | شرح | ورودی/خروجی |
| 1 | S | SBUS OUT | O |
| 2 | V | +5v(I max 1A) | O |
| 3 | G | GND | درجه فاصله اختیاری |
7. شاخص توان
This indicator is solid green when air unit is booting.
8. شاخص لینک
| LED Pattern Description |
| solid green Wireless link is established |
| light off Wireless link is lost |
9. شاخص وضعیت
| LED Pattern(Blink only in booting) Description |
| چشمک زدن 2 times Initialization OK, Frequency is 1.4GBlink 1 time Initialization OK, Frequency is 800M |
| چشمک زدن 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.
- صفحه نمایش OLED.
- باتری
- اتصال.

| عدد | شرح | ورودی/خروجی |
| 1 | Rx+ | من |
| 2 | Rx به- | من |
| 3 | Tx+ | O |
| 4 | Tx- | O |
| 5 | UART1 TX (RS232) | O |
| 6 | UART1 RX (RS232) | من |
| 7 | UART2 TX (RS232) | O |
| 8 | UART2 RX (RS232) | من |
| 9 | NC | |
| 10 | RC1_IN | من |
| 11 | RC2_IN | من |
| 12 | +5v | O |
| 13 | GND | درجه فاصله اختیاری |
| 14 | GND | درجه فاصله اختیاری |
| 15 | GND | درجه فاصله اختیاری |
| 16 | GND | درجه فاصله اختیاری |
| 17 | GND | درجه فاصله اختیاری |
| 18 | GND | درجه فاصله اختیاری |
| 19 | VCC (9v~28v) | من |
| 20 | VCC (9v~28v) | من |
مشخصات
| دسته بندی | مورد | جزئیات |
| بي سيمکارایی | باند فرکانس | 800مگاهرتز/1.4 گیگاهرتز |
| محدوده فرکانس | 800مگاهرتز:806MHz ~ 825MHz1.4GHz:1427MHz~1447MHz2.4GHz: 2400~2480MHz | |
| عرض باند | 5MHz/10MHz/20MHz | |
| تلفیق | OFDM | |
| EIRP | MK22: 30dBm±1dBMK55: 33DBM به 1DB ± | |
| حساسیت | ≤ -95dBm | |
| برد | MK22: 22کیلومترMK55:55کیلومتر*1 | |
| نرخ بیت | 30مگابیت در ثانیه @ 20MHz | |
| محدوده قدرت | دی سی 9 ~ 28V | |
| مصرف برق | ≤8.5W | |
| رابط | انتن | دبیرستان *2 |
| قدرت | XT30 | |
| UART | TTL 3.3V,1 بیت شروع, 8 بیت داده, 1 ذرهء ایست نما, بدون برابری, نرخ Baud 115200 (پیش فرض),57600, 38400, 19200, 9600 | |
| UART1 و UART2 | ||
| SBUS | SBUS_IN | |
| SBUS_OUT | ||
| شبکه محلی کابلی | 4 سنجاق | |
| دکمه | 1 | |
| تعویض | برای سوئیچ هوا و زمین | |
| انتن | رابط | دبیرستان |
| نوع | هوا:آنتن چسب چسب 20 سانتی متر:Fiber glass antenna, penal antenna | |
| نوع قطبش | عمودی | |
| کسب کردن | هوا:2.5دلهره:12دسی | |
| SWR | ≤2.0 | |
| محیط | دمای کار | -40℃ ~ + 70 ℃ |
| دمای ذخیره سازی | -40℃ ~ + 85 ℃ | |
| رطوبت | 5~ 95٪,غیر متراکم | |
| ظاهر | اندازه | 112 ایکس 63.5 ایکس 19 میلی متر |
| وزن | 143G |
بررسی اجمالی
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, نقشه برداری, نظارت بر محیط زیست, تدارکات, and security, the need for reliable long-range communication systems has become a critical requirement. این MK22 and MK55 Long-Range Wireless Transmission Systems are designed specifically to meet these demands.
Built for VTOL (برخاستن و فرود عمودی) هواپیمای بال ثابت, multi-rotor UAVs, and other long-range drone platforms, the MK22/MK55 systems provide robust and secure wireless transmission of ویدیوی در زمان واقعی, داده های کنترل پرواز, gimbal control signals, و RC (کنترل از راه دور) داده ها همزمان. With their high integration level, stable performance, 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 کیلومتر, while the MK55 is capable of reaching 55 کیلومتر 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 گیگاهرتز, و 2.4 گیگاهرتز. 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.
ویژگی های کلیدی
- انتقال از راه دور
- MK22: پشتیبانی تا 22 کیلومتر دامنه انتقال (THE).
- MK55: پشتیبانی تا 55 کیلومتر دامنه انتقال (THE).
- Both systems use advanced OFDM modulation, ensuring efficient bandwidth use and robust signal stability.
- نرخ داده بالا & زمان تاخیر کم
- Data throughput up to 30 mbps @ 20 مگاهرتز پهنای باند.
- قادر به انتقال ویدیوی HD, تله متری, و سیگنال های کنترل با حداقل تأخیر.
- طراحی چند رابط
- شبکه محلی کابلی 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.
- گروههای فرکانس: 800 مگاهرتز, 1.4 گیگاهرتز, و 2.4 گیگاهرتز.
- User-defined fixed channel configuration supported.
- حالتهای عملیاتی
- Point-to-point mode for direct link communication.
- Repeater mode for extended coverage or relay-based communication.
- ناچیز & Reliable Performance
- دمای عملیاتی: -40℃ تا +70 ℃.
- درجه فاصله اختیاری: دی سی 9 ~ 28V, compatible with 3S–6S LiPo batteries.
- مصرف برق: ≤8.5W, optimized for UAV onboard use.
- شاخص ها & Status Feedback
- شاخص توان: Solid green during boot.
- شاخص لینک: Shows wireless connection status.
- Status indicator: Provides initialization, پیکربندی, and error signals via LED blinking patterns.
- سیستم آنتن
- واحد هوا: آنتن چسب, 20 سانتی متر, سبک وزن برای هواپیماهای بدون سرنشین.
- واحد زمینی: High-gain fiberglass or panel antenna, designed for long-range reception.
- قطبش: عمودی, with gain of 2.5 دسی (هوا) و 12 دسی (زمین).
مشخصات فنی
Wireless Performance
- باند فرکانس: 800 مگاهرتز / 1.4 گیگاهرتز / 2.4 گیگاهرتز
- محدوده فرکانس:
- 800 مگاهرتز: 806–825 MHz
- 1.4 گیگاهرتز: 1427–1447 MHz
- 2.4 گیگاهرتز: 2400–2480 MHz
- گزینه های پهنای باند: 5 مگاهرتز / 10 مگاهرتز / 20 مگاهرتز
- تلفیق: OFDM
- توان خروجی (EIRP):
- MK22: 30 dBm ±1 dB
- MK55: 33 dBm ±1 dB
- حساسیت: ≤ -95 DBM به
- حداکثر نرخ داده: 30 mbps @ 20 مگاهرتز
قدرت & رابط
- ولتاژ ورودی: دی سی 9 ~ 28V
- Battery Support: 3S-6S LiPo
- مصرف برق: ≤8.5W
- رابط ها:
- SMA antenna connectors × 2
- شبکه محلی کابلی (4-سنجاق)
- UART1 (RS232) / UART2 (TTL)
- SBUS_IN / خارج
- Power via XT30 connector
- Control Switch: Air/Ground mode switch
انتن
- واحد هوا: Lightweight glue-stick antenna, 20 سانتی متر, 2.5 DBI سود
- واحد زمینی: Fiberglass or panel antenna, 12 DBI سود
- SWR: ≤ 2.0
زیست محیطی
- دمای عملیاتی: -40℃ ~ +70 ℃
- دمای ذخیره سازی: -40℃ ~ +85 درجه سانتیگراد
- رطوبت: 5% ~ 95%, غیر متراکم
فیزیکی
- ابعاد: 112 × 63.5 × 19 میلی متر
- وزن: 143 G
توجه داشته باشید: Range tests were conducted under line-of-sight (THE) and no-interference conditions.
برنامه های کاربردی
The MK22/MK55 long-range transmission systems are designed for a wide range of industrial and professional UAV applications where reliability, فاصله, and stability are critical. موارد استفاده معمولی عبارتند از:
- Aerial Surveying & نقشه برداری: High-resolution video and telemetry data transfer over extended distances.
- Agricultural Monitoring: Real-time crop health analysis and environmental monitoring in wide fields.
- امنیت & نظارت: اجرای قانون, گشت مرزی, و نظارت زیرساخت.
- جستجو کردن & نجات (SAR): Long-range communication support in disaster zones.
- Logistics & Delivery Drones: Stable transmission of control and monitoring signals for BVLOS operations.
- نظامی & شناسایی: Secure and reliable wireless data/video transmission for tactical UAVs.
تنظیمات اختیاری
- گزینه های باند فرکانس: Select between 800 مگاهرتز, 1.4 گیگاهرتز, یا 2.4 GHz based on local regulations.
- گزینه های آنتن: Ground station antennas available in panel, fiberglass, or high-gain directional configurations for maximum range.
- گزینه های خروجی ویدیویی: HDMI output for HD display or Ethernet-based data streaming.
- ادغام سیستم: Customization available for different UAV platforms and control systems.

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