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Strong real-time performance analog video transmitter (VTX)

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Shenzhen Fengqing Instrument Co., Ltd.

City: shenzhen

Country/Region:china

Tel:86-0755-61348606

Contact Person:
Ms.Yuzi View Contact Details

Strong real-time performance analog video transmitter (VTX)

Brand Name	QV-FQ
Model Number	QV-IRC5.8G
Certification	ISO
Place of Origin	CHINA
Minimum Order Quantity	1
Price	Negotiated
Payment Terms	L/C,T/T
Supply Ability	80,000pcs/month
Delivery Time	In 5 work day
Packaging Details	Packaging with anti-collision foam
Number of channels	88CH
frequency range	4900~6100MHz
output power	25mW 、500mW 、 1W、5W、10W
control protocol	IRC Tramp supports OSD parameter adjustment
Modulation type	FM frequency modulation

Detailed Product Description

Core Positioning

An analog video transmission system with real-time performance as its core competitive edge, dedicated to providing professional pilots and high-end applications with lag-free, highly reliable visual feedback, ensuring absolute synchronization between control commands and visual perception.

Application Scenarios

Professional Drone Racing and Training
Extreme FPV Freestyle Flying and Cinematic Filming
Unmanned System Testing and Development
Tactical Reconnaissance and Emergency Response

Core Selling Points

Frame-by-Frame Ultra-Low Latency
Optimized Signal Transmission Chain
Stability in Complex Environments
Predictable Failure Mode
Seamless Compatibility with Professional Equipment
Sustained Performance at High Power Output

project	specifications
working voltage :	DC 7-20V
working current :	2.6A@12V
operating ambient temperature :	-10~65℃
weight :	70g (excluding the antenna)
outline dimension :	74mm38.5mm24mm
Mounting hole position:	20mm x 20mm spacing, with M2 threaded holes included
Number of channels:	88CH
frequency range :	4900~6100MHz
output power :	25mW ,500mW , 1W,5W,10W
control protocol :	IRC Tramp supports OSD parameter adjustment
Modulation type:	FM frequency modulation
channel bandwidth :	8MHz
Antenna interface:	SMA (external thread with internal hole)
Video format:	NTSC/PAL

Product Features

Supports operation across the 4.9G to 6.1G broadband spectrum

Button/IRC control for quick CH and power adjustment

Special design eliminates antenna connection and power amplifier burnout

Automotive-grade RF crystal with temperature range and enhanced frequency stability

Fully metal CNC casing with dustproof and explosion-proof features, excellent heat dissipation, and stable power output

Fast frequency locking, no interference with peers during startup

High-temperature protection: When the product overheats during continuous operation, the image transmission system activates power reduction protection. Once the system reaches the equilibrium point, power output gradually increases to prevent thermal damage from high temperatures.

High output power, stable output power, and long transmission distance

Interface Function Definition

joggle	functional description
GND1,GND2:	The ground wire connects to the GND of the flight control system.
RX:	Image transmission control signal input: Connect to the UART TX interface of devices such as flight control systems, and activate the IRC control protocol to regulate functions including transmission frequency, bandwidth, and power.
VTX:	Video input: Connect to the flight control's video output (VTX)
VCC:	Connect the DC 7V-20V power input to the positive terminal of the DC-DC buck regulator module, not directly to the flight controller.
GND:	Connect the negative terminal of the power input to the negative terminal of the DC-DC buck regulator module.
POWER:	power adjustment button Short press to adjust power, cycling between five levels: 25mW, 500mW, 1W,5W, and 10W. Double-click to enter PIT mode (Maintenance Mode, with minimal video output power; avoid activation if possible). Long press to lock/unlock the image transmission power and frequency buttons (to prevent accidental touches)
FRCH:	Frequency/Channel Adjustment Button Short press to change channel, cycling between CH1 to CH8 Long press for 3 seconds to enter frequency group switching mode. Short press again to change the frequency group.
PWR LED:	Power indicator: Red (flashes to indicate power level) Red light off: indicates entry into PIT mode Red light on: Locks the video transmission power and frequency buttons
CH LED:	Channel indicator: Green (indicates channel CH by the number of flashes)
FR LED:	Band indicator light: Blue (indicates the number of flashes for the band)

Frequency Table

1, Power and LED status (PWR LED flash count)

Red LED flashing in a loop	extinct	Always on	Flash once	Flash twice	Flash 3 times	Flash 4 times	Flash 5 times
Power level	PIT	Lock button	25mW	500mW	1W	5W	10W

2, Frequency group, channel, and indicator light status (LED flash count)

Frequency group indicator (blue) FR LED Flashing Indicator		Channel (MHz) Indicator light (green LED)
Frequency group indicator (blue) FR LED Flashing Indicator		CH1 Flash once	CH2 Flash twice	CH3 Flash 3 times	CH4 Flash 4 times	CH5 Flash 5 times	CH6 Flash 6 times	CH7 Flash 7 times	CH8 Flash 8 times
LED flash once	Band A	5856	5845	5825	5805	5785	5765	5745	5725
LED flashes twice	Band B	5733	5752	5771	5790	5809	5828	5847	5866
LED flashes 3 times	Band E	5705	5685	5665	5645	5885	5905	5925	5945
LED flashes 4 times	Band F	5740	5760	5780	5800	5820	5840	5860	5880
LED flashes 5 times	Band R	5658	5695	5732	5769	5806	5843	5880	5917
LED flashes 6 times	Band H	5653	5693	5733	5773	5813	5853	5893	5933
LED flashes 7 times	Band L	5333	5373	5413	5453	5493	5533	5573	5613
LED flashes 8 times	Band U	5325	5348	5366	5384	5402	5420	5438	5456
LED flashes 9 times	Band O	5474	5492	5510	5528	5546	5564	5582	5600
LED flashes 10 times	Band X	4990	5020	5050	5080	5110	5140	5170	5200
The LED flashes 11 times.	Band Z	6002	6028	6054	6080	6106	6132	6158	6184

3. Installation dimension drawing

Notes:

If the RX cable is already connected to the transmitter of the flight controller, the buttons will not function.

Details of Accessories (Attached Diagram)

Terminal wire

4P terminal wire, length 200mm ±3mm

power line

2P terminal wire, length 200mm ±3mm

Bamboo stick antenna

5.8G frequency band, with an intermediate connecting cable measuring 140mm ± 3mm


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