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Low-latency transmission analog video transmitter (VTX)

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Low-latency transmission analog video transmitter (VTX)
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Features
Specifications
Working Voltage: DC 7-20V
Working Current: 2.6A@12V
Operating Ambient Temperature: -10~65℃
Weight: 70g (excluding The Antenna)
Outline Dimension: 74mm*38.5mm*24mm
Basic Infomation
Place of Origin: CHINA
Brand Name: QV-FQ
Certification: ISO
Model Number: QV-IRC5.8G
Payment & Shipping Terms
Packaging Details: Packaging with anti-collision foam
Delivery Time: In 5 work day
Payment Terms: L/C,T/T
Supply Ability: 80,000pcs/month
Product Description
Low-latency transmission analog video transmitter (VTX)
Core Positioning

A simulated video transmission system designed specifically for first-person perspective applications that demand real-time control and high-speed response. Its millisecond-level latency serves as the technical cornerstone for ensuring immersive experience and precise control.

Application Scenarios
  • Drone Racing (FPV Racing)
  • Drone Freestyle Flying (FPV Freestyle)
  • High-Speed Unmanned Vehicle and Model Competitions
  • Professional Drone Navigation and Reconnaissance
Core Selling Points
  • Millisecond-Level Real-Time Video Feed
  • Uninterrupted, Continuous Video without Buffering
  • Predictable Performance Even Under Weak Signal Conditions
project specifications
working voltage : DC 7-20V
working current : 2.6A@12V
operating ambient temperature : -10~65℃
weight : 70g (excluding the antenna)
outline dimension : 74mm*38.5mm*24mm
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)

Low-latency transmission analog video transmitter (VTX) 0
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)

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

Low-latency transmission analog video transmitter (VTX) 1
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

 Low-latency transmission analog video transmitter (VTX) 2

power line

2P terminal wire, length 200mm ±3mm

 Low-latency transmission analog video transmitter (VTX) 3

Bamboo stick antenna

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

 Low-latency transmission analog video transmitter (VTX) 4
Company Information

Shenzhen Fengqing Instrument Co., Ltd.

Crafted in China, Quality Forges Low-Altitude Security.
Upholding a "customer-first" philosophy, Fengqing Instrument is committed to providing professional service throughout the entire product lifecycle:

  • Pre-sales Consultation: Customized solution designs and product recommendations based on client needs.
  • In-sales Support: Comprehensive technical support for installation, debugging, and operational training.
  • After-sales Service: Rapid-response system including remote support and on-site maintenance.
Low-latency transmission analog video transmitter (VTX) 5
Tag:

FPV drone frame

drone frame kit

UAV frame

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Tel : +86 13691968746
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yuzi@quovin.com
+86 13670255641
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