FlySpark 4G / 4.8G Long-Range FPV VTX Series | 4.5W & 10W Analog Video Transmitter Modules | 3700MHz–4800MHz

Key facts

At a glance

The FlySpark 4G / 4.8G Long-Range FPV VTX Series has two analog video transmitter modules for long-range FPV drones, fixed-wing UAVs and RF test platforms: the 4.5 W VTX-F19 (4020–4800 MHz, 40 channels) and the 10 W VTX-F20 (3700–4330 MHz, 64 channels). Both run from 7–36 V DC, use SMA connectors and a 20 × 20 mm M2 mount, and support IRC control, OSD adjustment and PIT mode. Listed prices are CA$366 and CA$501

Use cases

• Long-range analog FPV video on multirotor and fixed-wing drones
• Surveillance and inspection UAV video payloads
• Drone R&D labs and RF video-link test platforms
• High-power analog VTX replacement in custom builds

Standards & references

• ITU Radio Regulations — The 3700–4800 MHz coverage overlaps bands allocated internationally to other services, so permitted channels and power differ by country.
• DoT Wireless Planning & Coordination (WPC) Wing, India — The catalog requires users to follow WPC/DoT spectrum rules; high-power transmission is allowed only where legally permitted.

Sources: FlySpark catalog data; FlySpark product page. Updated 12 Oct 2026.

Intelligence Brief

Mission overview

FlySpark 4G / 4.8G Long-Range FPV VTX Series | 4.5W & 10W Analog Video Transmitter Modules

The FlySpark 4G / 4.8G Long-Range FPV VTX Series is a high-power analog FPV video transmitter family designed for FPV drones, long-range UAVs, fixed-wing aircraft, inspection drones, surveillance UAVs, RF test platforms and custom drone communication builds. This series is intended for users who require specialized high-frequency analog video transmission in the 3.7GHz–4.8GHz class, beyond standard 1.2G, 1.7G, 2.2G, 3.3G and 5.8G FPV systems.

The series includes two variants: 4.8G 4.5W VTX-F19 and 4G 10W VTX-F20. Both variants support IRC control protocol, OSD parameter adjustment, PIT Mode, SMA antenna interface, DC 7V–36V input and DC 5V output. The VTX-F19 provides 40-channel coverage from 4020MHz to 4800MHz with up to 4.5W RF output, while the VTX-F20 provides 64-channel coverage from 3700MHz to 4330MHz with up to 10W RF output.

• AVAILABLE VARIANTS:
• • 4.8G 4.5W VTX-F19 — CA$366
• • 4G 10W VTX-F20 — CA$501

PRODUCT POSITIONING:

• • 4G / 4.8G analog FPV video transmitter family
• • Available in 4.5W and 10W output power options
• • Frequency coverage from 3700MHz to 4800MHz depending on variant
• • Suitable for long-range FPV drones and UAV video links
• • IRC control protocol support
• • OSD parameter adjustment support
• • DC 7V–36V wide input voltage, DC 5V output voltage
• • SMA antenna interface, PIT Mode supported
• • Compact 20×20mm drone mounting format for professional analog video-link integration

BEST USE CASES:

• • Long-range FPV drones
• • Fixed-wing FPV platforms
• • UAV video transmission systems
• • 4G / 4.8G analog video-link builds
• • Drone R&D platforms
• • Surveillance UAV integration
• • Inspection drone video systems
• • Custom FPV drone builds
• • Professional UAV communication payloads
• • High-power analog VTX replacement
• • Testing and field evaluation platforms

WHO IT IS FOR:

FPV drone builders, long-range and fixed-wing FPV pilots, UAV development teams, drone R&D labs, surveillance and inspection drone integrators, custom drone manufacturers and high-power RF video-link integrators.

IMPORTANT USE NOTE:

This product is a high-power RF video transmitter module. Use only on legally permitted frequencies, power levels and operating locations. Users must follow WPC/DoT/local spectrum regulations, aviation rules, RF safety requirements, site permissions and lawful drone operation practices. Always connect a suitable antenna or RF load before powering the VTX to prevent RF power-stage damage.

FREQUENTLY ASKED QUESTIONS: