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.

Ceev faj                

Attention to installation

1. Before power on, make sure the antenna connection is reliably . Txwv tsis pub, 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, thiab lwm yam) 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.

Packing daim ntawv teev

Device X 2

Txheej txheem cej luam

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 tswj cov ntaub ntawv, 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。

nta

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 Zaus Band

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

-Hopping:  tsis siv neeg Working mode

BW – Air unit can be ：Point to point mode

-5/10/20 MHz Repeater mode

Ua haujlwm kub Power range

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

M52 Interface Description

Cua unit

side view

Ethernet

Number	Character	hauj lwm	Input/Output
1	T+	TX +	Cov
2	T-	TX-	Cov
3	R+	RX+	kuv
4	R-	RX-	kuv

2. UART1

Number	Character	hauj lwm	Input/Output
1	G	GND	xaiv nyob deb qib
2	R	RS232 RX	kuv
3	T	RS232 TX	Cov

3. UART2

Number	Character	hauj lwm	Input/Output
1	G	GND	Cov
2	R	TTL RX	kuv
3	T	TTL TX	Cov

4. hwj chim

Number	Character	hauj lwm	Input/Output
1	G	GND	xaiv nyob deb qib
2	V	+Vcc（9v~28v）	kuv

5. SBUS1

Number	Character	hauj lwm	Input/Output
1	S	SBUS OUT	Cov
2	V	+5v（I max 1A）	Cov
3	G	GND	xaiv nyob deb qib

6. SBUS2

Number	Character	hauj lwm	Input/Output
1	S	SBUS OUT	Cov
2	V	+5v（I max 1A）	Cov
3	G	GND	xaiv nyob deb qib

7. Fais fab taw qhia

This indicator is solid green when air unit is booting.

8. link qhia

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. Roj teeb
4. connector.

Number	hauj lwm	Input/Output
1	Rx+	kuv
2	Rx-	kuv
3	Tx+	Cov
4	Tx-	Cov
5	UART1 TX (RS232)	Cov
6	UART1 RX (RS232)	kuv
7	UART2 TX (RS232)	Cov
8	UART2 RX (RS232)	kuv
9	NC
10	RC1_IN	kuv
11	RC2_IN	kuv
12	+5v	Cov
13	GND	xaiv nyob deb qib
14	GND	xaiv nyob deb qib
15	GND	xaiv nyob deb qib
16	GND	xaiv nyob deb qib
17	GND	xaiv nyob deb qib
18	GND	xaiv nyob deb qib
19	Vcc (9v~28v)	kuv
20	Vcc (9v~28v)	kuv

specification

Qeb	Yam	Nthuav dav
wirelessPerformance	Ntau zaus band	800MHz/1.4 GHz
	ntau zaus	800MHz：806MHz～825MHz1.4GHz：1427MHz～1447MHz2.4GHz:  2400~2480MHz
	Band width	5MHz/10MHz/20MHz
	Tes taws los piav	OFDM
	EIRP	MK22: 30dBm±1dBMK55: 33dBm ± 1dB
	Neeg	≤ -95dBm
	Ntau	MK22: 22kmMK55:55km*1
	ntsis tus nqi	30Mbps @ 20MHz
Power Range	DC 9 ~ 28V
Fais fab kev noj	≤8.5W
interface	Kav hlau txais xov	High School *2
	hwj chim	XT30
	UART	TTL 3.3V，1 pib me ntsis, 8 cov ntaub ntawv ntsis, 1 nres me ntsis, no parity., Baud tus nqi 115200 (default)，57600, 38400, 19200, 9600
		UART1 thiab UART2
	SBUS	SBUS_IN
		SBUS_OUT
	Ethernet	4 pin
	Khawm	1
	Hloov	Rau kev hloov huab cua thiab hauv av
Kav hlau txais xov	interface	High School
	hom	Cua：Glue stick antenna 20cmGround：Fiber glass antenna, penal antenna
	polarization hom	Vertical
	nce	Cua：2.5dBiGround：12dBi
	SWR	≤2.0
Cheeb tsam	Ua haujlwm kub	-40℃ ~ + 70 ℃
	cia kub	-40℃ ~ + 85 ℃
	Vaum	5~ 95%，tsis-condensing
Tshwm sim	loj	112 X 63.5 X 19 hli
	hnyav	143g