User manual for wireless video transmitter HD

Disclaimer

• 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.

Caution                

Attention to installation

1. Before power on, make sure the antenna connection is reliably . Aita, 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.

Before use                                      

1. Make sure that all cables are connected correctly and firmly.

2. No foreign objects (e.g. liquids, sand, te tahi atu a.) 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.

Tabula Packing

Device X 2

Hioraa

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, gimbal haavi i te putuite, 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。

Mau raveʻa

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 Ha'uti no te tai'o mahana

-Haamauhia: user defined – 800MHz/1.4GHz/2.4GHz

-Hopping:  Tana Te huru raveraa i te ohipa

INGP – Air unit can be ：Point to point mode

-5/10/20 MHz Repeater mode

Te anuvera o te ohipa Power range

– 40°C ~ + 70 °C – DC 9~28V Battery 3S~6S

M52 Interface Description

Te mata'i rorofa'i

side view

Ethernet

Numera	Character	Faataaraa	Input/Output
1	T+	TX+	O
2	T-	TX-	O
3	R+	RX+	Ua
4	R-	RX-	Ua

2. UART1

Numera	Character	Faataaraa	Input/Output
1	G	GND	I/O
2	R	RS232 RX	Ua
3	T	RS232 TX	O

3. UART2

Numera	Character	Faataaraa	Input/Output
1	G	GND	O
2	R	TTL RX	Ua
3	T	TTL TX	O

4. Mana

Numera	Character	Faataaraa	Input/Output
1	G	GND	I/O
2	V	+Vcc（9v~28v）	Ua

5. SBUS1

Numera	Character	Faataaraa	Input/Output
1	S	SBUS OUT	O
2	V	+5v（I max 1A）	O
3	G	GND	I/O

6. SBUS2

Numera	Character	Faataaraa	Input/Output
1	S	SBUS OUT	O
2	V	+5v（I max 1A）	O
3	G	GND	I/O

7. Te mau mana'o tauturu no te haapiiraa

This indicator is solid green when air unit is booting.

8. Faaiteraa hono

LED Pattern Description

solid green Wireless link is established

light off Wireless link is lost

9. Status Indicator

LED Pattern（Blink only in booting） Description

Blink 2 times Initialization OK, Frequency is 1.4GBlink 1 time Initialization OK, Frequency is 800M

Blink 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.

1. Fiber glass antenna.
2. OLED display.
3. Putu uira
4. Connector.

Numera	Faataaraa	Input/Output
1	Rx+	Ua
2	Rx-	Ua
3	Tx+	O
4	Tx-	O
5	UART1 TX (RS232)	O
6	UART1 RX (RS232)	Ua
7	UART2 TX (RS232)	O
8	UART2 RX (RS232)	Ua
9	NC
10	RC1_IN	Ua
11	RC2_IN	Ua
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)	Ua
20	Vcc (9v~28v)	Ua

Specification

Tuhaa	Ohipa	Hoho'a no te
WirelessRaveraa	Te mau parau apî no te Ekalesia	800MDT/1.4G Wil
	Pinepine ratou i te tahi	800MHz：806MHz～825MHz1.4GHz：1427MHz～1447MHz2.4GHz:  2400~2480MHz
	Band width	5MHz/10MHz/20MHz
	Modulation	OFDM
	EIRP	MK22: 30dBm±1dBMK55: 33dBm±1dB
	Tapao itea	≤-95BM
	Ratou i te tahi	MK22: 22kilometeraMK55:55kilometera*1
	Faito faito iti	30Mbps@20MHz
Power Range	PHPF 9 ~ 28V
Ta te mana	≤8.5W
Vauvauraa	Antenna	SMA *2
	Mana	XT30
	UART	TTL 3.3V，1 haamata, 8 putu itepiri, 1 faaea rii, aita e pe'ape'a., Faito maitai o te baud 115200(ti'a)，57600, 38400, 19200, 9600
		UART1 e UART2
	SBUS	SBUS_IN
		SBUS_OUT
	Ethernet	4 HOE PINE
	Pitopito	1
	Switch	No te pataraa i te reva e te repo
Antenna	Vauvauraa	SMA
	Te huru	Te reva：Glue stick antenna 20cmGround：Fiber glass antenna, penal antenna
	Vahiraa huru	Vertical
	Ia roaa te	Te reva：2.5dBiGround：12dBi
	SWR	≤ 2.0
Vahi	Te anuvera o te ohipa	-40°C ~ + 70 °C
	Haaputuraa maa a te anuvera	-40°C ~ + 85 °C
	Humidity	5~ 95%，e ere i te mea papû roa
Te huru	Rahi	112 X 63.5 X 19 mm
	teimaha	143g