DMKR 4.9GHz-7.2GHz 4W 176CH 7V-36V 20mm*20mm FPV Analog VTX

Product Appearance

 

 

Product Dimension

 

 

Function Introduction

 

1. Frequency indicator light: red LED
2. Frequency band indicator light: blue LED
3. Power indicator light: green LED
4. Frequency band and frequency point adjustment buttons
5. Power adjustment button
6.1.0 6P cable tray
7. SMA Mother Seat Inner Hole Antenna Seat V. Button Control Mode and LED Indicator Light Definition

 

1. Button ④ is the frequency point and frequency band switching button; Each short press of button ④ will switch to the corresponding red LED of the next frequency point, which will flash in sequence for frequency points 1, 2, 3, 4, 5, 6, 7, and 8. This operation can be looped;

 

Short press button ④ to switch channel
Red LED	CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
	Flash once	Flash twice	Flash for 3 times	Flash for 4 times	Flash for 5 times	Flash for 6 time	Flash for 7 times	Flash for 8 times

 

2. Long press button ④ to switch frequency bands. Press and hold for 5 seconds, and the corresponding blue LED will flash. The frequency groups are A-V, with a total of 22 frequency bands. This operation can be looped;

 

Long press button ④ to switch bands
Blue LED	Band A	Band B	Band C	Band D	Band E	Band F	Band G	Band H	Band I	Band J	Band K
	Flash once	Flash twice	Flash for 3 times	Flash for 4 times	Flash for 5 times	Flash for 6 time	Flash for 7 times	Flash for 8 times	Flash for 9 time	Flash for 10 times	Flash for 11 times
	Band L	Band M	BandN	Band O	Band P	Band Q	Band R	Band S	Band T	Band U	Band V
	Flash for 12 times	Flash for 13 times	Flash for 14 times	Flash for 15 times	Flash for 16 times	Flash for 17 time	Flash for 18 times	Flash for 19 times	Flash for 20 time	Flash for 21 times	Flash for 22 times

 

3. Button ⑤ is the power adjustment button, which switches the power level by short pressing once, between 0mW and 25mW
Cycle between the four levels of 2000mW and 4000mW. The green LED is the power indicator light, as shown in the following figure. It flashes once at 0mW, twice at 25mW, three times at 2000mW, and four times at 4000mW. Press and hold for 3 seconds to enter pit mode, with the green light constantly on.

 

Short press button ⑤ Power switch
Green LED	Pit Mode	0mw	25mW	2000mW	4000mW
	Everlasting brightness	Flashes 1 time	Flashes Twice	Flashes 3 times	Flashes 4 times

Note: This image transmission has a temperature protection function. When the temperature of the image transmission is higher than 100 ℃, the transmission power of this image transmission will decrease by one level. If the temperature is still higher than 100 ℃, it will continue to decrease by another level until the lowest power level (0mW) is reached; At this point, the temperature of the image transmission will decrease. When the temperature drops to 95 ℃, the transmission power will return to the originally set power level.

 

Frequency Table

 

Frequency Table
Channel Band	CH1	CH2	CH3	CH4	CH5	CH6	CH7	CH8
BAND A	6110	6130	6150	6170	6190	6210	6230	6250
BAND B	6270	6290	6310	6330	6350	6370	6390	6410
BAND C	6430	6450	6470	6490	6510	6530	6550	6570
BAND D	6590	6610	6630	6650	6670	6690	6710	6730
BAND E	6750	6770	6790	6810	6830	6850	6870	6890
BAND F	6910	6930	6950	6970	6990	7010	7030	7050
BAND G	7070	7090	7110	7130	7150	7170	7190	7210
BAND H	6115	6265	6425	6585	6745	6905	7065	7185
BAND I	5865	5845	5825	5805	5785	5765	5745	5725
BAND J	5733	5752	5771	5790	5809	5828	5847	5866
BAND K	5705	5685	5665	5645	5885	5905	5925	5945
BAND L	5740	5760	5780	5800	5820	5840	5860	5880
BAND M	5658	5695	5732	5769	5806	5843	5880	5917
BAND N	5362	5399	5436	5473	5510	5547	5584	5621
BAND O	5990	5020	5050	5080	5110	5140	5170	5200
BAND P	5333	5373	5413	5453	5493	5533	5573	5613
BAND Q	4867	4884	4921	4958	4995	5032	5069	5099
BAND R	5325	5348	5366	5384	5402	5420	5438	5456
BAND S	5474	5492	5510	5528	5546	5564	5582	5600
BAND T	5653	5693	5733	5773	5813	5853	5893	5933
BAND U	5960	5980	6000	6020	6040	6060	6080	6100
BAND V	6002	6028	6054	6080	6106	6132	6158	6184

 

Betaflight Frequency Point Definition

 

In Betaflight, the user sets a frequency point that is not in the image transmission table, such as 4888MHz. In this case where the flight control is connected to the IRCTramp protocol for image transmission, the user will not be able to use physical buttons, and the blue and red lights will remain on continuously. The green power light will not be affected
If the frequency used is within the image transmission table, the lights will flash in the described flashing manner;
The priority of the IRCTramp protocol for flight control and image transmission set by Betaflight will be higher than the definitions of physical buttons and image transmission tables; Assuming the flight control is already connected and the frequency point is set to 4999, the image transmission has been automatically saved
4999 is the frequency point for this image transmission. If you need to use the frequency point in the image transmission table that is not connected to the flight controller, short press the frequency point to switch to the default A1 frequency point in the image transmission table;

 

Illustrate of 6P 1.0 Wiring

 

 

Notice For Use

 

1. When installing image transmission, it is necessary to leave space to ensure air convection around the module and ensure module heat dissipation; Otherwise, the module overheating protection will activate, reduce power transmission, or even turn off power transmission.
2. It is recommended to ensure the correct voltage range and positive and negative poles before connecting the power supply to avoid burning electronic components.
3. Before connecting the power supply, the user needs to confirm that the corresponding frequency antenna has been installed on the RF output terminal to ensure that the electronic components of the image transmission module will not burn out due to the inability to transmit power.
4. Please read the instruction manual before use, as this will ensure proper wiring and extend the lifespan of the module.

 

Legal Disclaimer
Important Notice on Radio Frequency Usage

 

1.DMKR high-performance VTX modules  are powerful RF instruments.Designed for specialized industrial, research, and laboratory applications. By purchasing this product, the buyer acknowledges and agrees to the following:

2.Regulatory Compliance: It is the buyer’s sole responsibility to ensure that the operation of this device complies with local laws, radio frequency regulations, and licensing requirements in their respective country or region.

3.Professional Use Only: This equipment should only be operated by qualified professionals. DMKR is not liable for any legal consequences, fines, or damages resulting from illegal or improper use.

4.Frequency Licensing: The 7.2GHz band may be restricted or require a specific technician’s license for operation. Please consult your local telecommunications authority (e.g., FCC, OFCOM, BNetzA) before powering on the device.

5.Risk of Misuse: The user assumes all risks associated with the deployment of this hardware. DMKR does not authorize the use of these devices in prohibited areas, including but not limited to, near airports or restricted government airspace.

6.No Liability: In no event shall DMKR be held liable for any direct, indirect, or incidental damages, including hardware failure of the UAV/UGV or legal intervention, arising out of the use or inability to use this product.

7.Safety Warning: High-power RF devices generate significant heat and radiation. Ensure proper thermal management and maintain a safe distance during operation.

8.Hardware Modification: Unauthorized modification of the firmware or hardware may void compliance certifications and safety protections.