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

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 — ₹23,940
• • 4G 10W VTX-F20 — ₹32,800

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:

• Q: What is the FlySpark 4G / 4.8G Long-Range FPV VTX Series?
• A: It is a high-power analog FPV video transmitter series for drones and UAVs, available in 4.5W and 10W output-power variants.

• Q: What variants are available in this 4G / 4.8G VTX series?
• A: The available variants are 4.8G 4.5W VTX-F19 and 4G 10W VTX-F20.

• Q: What is the starting price?
• A: The starting price is ₹23,940 for the 4.8G 4.5W VTX-F19 variant.

• Q: What is the price of 4.8G 4.5W VTX-F19?
• A: The price of the 4.8G 4.5W VTX-F19 is ₹23,940.

• Q: What is the price of 4G 10W VTX-F20?
• A: The price of the 4G 10W VTX-F20 is ₹32,800.

• Q: What frequency range does VTX-F19 support?
• A: VTX-F19 supports 4020MHz–4800MHz.

• Q: What frequency range does VTX-F20 support?
• A: VTX-F20 supports 3700MHz–4330MHz.

• Q: Which is the highest-power variant?
• A: The 4G 10W VTX-F20 is the highest-power variant with up to 10000mW RF output.

• Q: Which variant has more channels?
• A: The VTX-F20 supports 64 channels, while VTX-F19 supports 40 channels.

• Q: What power modes does VTX-F19 support?
• A: VTX-F19 supports PIT Mode, 25mW, 200mW, 1600mW and 4500mW.

• Q: What power modes does VTX-F20 support?
• A: VTX-F20 supports PIT Mode, 25mW, 200mW, 4000mW and 10000mW.

• Q: Does this VTX support PIT Mode?
• A: Yes. Both listed variants support PIT Mode.

• Q: Does this VTX support OSD parameter adjustment?
• A: Yes. Both variants support IRC control protocol and OSD parameter adjustment.

• Q: What input voltage is supported?
• A: Both variants support DC 7V–36V power supply input.

• Q: Does the VTX provide 5V output?
• A: Yes. Both listed variants provide DC 5V output.

• Q: What antenna connector is used?
• A: Both variants use SMA antenna interface.

• Q: What mounting pattern does VTX-F19 use?
• A: VTX-F19 uses 20mm × 20mm spacing with M2 threaded holes.

• Q: What mounting pattern does VTX-F20 use?
• A: VTX-F20 uses 20mm × 20mm spacing with M2 mounting holes.

• Q: What are the dimensions of VTX-F19?
• A: VTX-F19 dimensions are 48.5mm × 35mm × 18.2mm.

• Q: What are the dimensions of VTX-F20?
• A: VTX-F20 dimensions are 60mm × 36mm × 22.8mm, excluding SMA head.

Q: Is this suitable for long-range FPV drones? A: Yes. These 4G / 4.8G VTX modules are suitable for long-range analog FPV video transmission when used with proper antennas, receiver system, cooling and legal RF permissions.

• Q: Is this suitable for fixed-wing UAVs?
• A: Yes. The 4G / 4.8G VTX series is suitable for fixed-wing FPV platforms and long-range UAV builds where analog video transmission is required.

• Q: Is this a digital VTX?
• A: No. This is an analog FPV video transmitter series.

Q: Can I power it directly from a drone battery? A: It supports DC 7V–36V input, but the exact connection depends on the drone power system. Use clean power and verify voltage compatibility before installation.

• Q: Can the VTX be powered without antenna?
• A: No. Do not power a high-power VTX without a properly connected antenna or dummy load, as it may damage the RF output stage.

Q: Does higher wattage always mean better range? A: Higher output power can improve link margin, but actual range depends on antenna gain, receiver sensitivity, line of sight, RF noise, installation quality, cable loss, power supply stability and legal operating limits.

• Q: Which variant should I choose for 4.8G FPV builds?
• A: Choose VTX-F19 4.5W if you need 4020MHz–4800MHz coverage with 40 channels and 4.5W output.

• Q: Which variant should I choose for maximum output power?
• A: Choose VTX-F20 10W if you need the highest output power and 3700MHz–4330MHz 64-channel coverage.

Q: What legal precautions are required? A: Users must follow WPC/DoT/local spectrum regulations, drone operation rules, site permissions and RF safety practices. High-power RF transmission should only be operated where legally permitted.

Q: What warranty is included? A: Warranty support is 1 Year for manufacturing defects under approved integration and normal operating conditions. Damage from reverse polarity, over-voltage, overheating, antenna mismatch, powering without antenna, crash, water ingress, unauthorized modification or illegal operation may not be covered.