FlySpark 5.8G Long-Range FPV VTX Series | 400mW to 10W Analog Video Transmitter Modules | 4867MHz–6100MHz

FlySpark 5.8G Long-Range FPV VTX Series | 400mW to 10W Analog Video Transmitter Modules

The FlySpark 5.8G Long-Range FPV VTX Series is a complete analog FPV video transmitter family designed for FPV drones, racing drones, long-range UAVs, fixed-wing aircraft, inspection drones, surveillance UAVs, R&D platforms and professional drone video-link integration. This series covers compact low-power builds, medium-power long-range FPV systems and high-power professional UAV video transmission requirements.

The series includes six variants: 5.8G 400mW FT1573, 5.8G 1.6W VTX-F1-72, 5.8G 3W VTX-F2-72, 5.8G 4W SK-VTX12, 5.8G 5W VTX-F18 and 5.8G 10W SK-VTX11. Depending on the selected variant, the series supports 48CH, 72CH or 80CH frequency coverage, IRC control protocol, OSD parameter adjustment, PIT Mode, DC 5V output and IPEX, MMCX or SMA antenna interfaces.

• AVAILABLE VARIANTS:
• • 5.8G 400mW FT1573 — KM 208
• • 5.8G 1.6W VTX-F1-72 — KM 232
• • 5.8G 3W VTX-F2-72 — KM 301
• • 5.8G 4W SK-VTX12 — KM 370
• • 5.8G 5W VTX-F18 — KM 407
• • 5.8G 10W SK-VTX11 — KM 602

PRODUCT POSITIONING:

• • 5.8GHz analog FPV video transmitter family
• • Available from 400mW to 10W output power
• • Frequency coverage up to 4867MHz–6100MHz depending on variant
• • 48CH, 72CH and 80CH options available
• • Suitable for FPV drones, racing drones, long-range UAVs and fixed-wing platforms
• • IRC control protocol support, OSD parameter adjustment support, PIT Mode supported
• • DC 5V output voltage
• • IPEX, MMCX and SMA antenna interface options
• • Compact and high-power mounting formats for professional analog FPV video-link integration

BEST USE CASES:

• • FPV racing drones
• • Long-range FPV drones
• • Fixed-wing FPV platforms
• • UAV video transmission systems
• • 5.8G 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, racing and freestyle pilots, long-range and fixed-wing FPV pilots, UAV development teams, drone R&D labs, surveillance and inspection drone integrators, custom drone manufacturers and analog FPV users.

IMPORTANT USE NOTE:

This product is an 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 5.8G Long-Range FPV VTX Series?
• A: It is an analog FPV video transmitter series for drones and UAVs, available in 400mW, 1.6W, 3W, 4W, 5W and 10W output-power variants.

• Q: What variants are available in this 5.8G VTX series?
• A: The available variants are 5.8G 400mW FT1573, 5.8G 1.6W VTX-F1-72, 5.8G 3W VTX-F2-72, 5.8G 4W SK-VTX12, 5.8G 5W VTX-F18 and 5.8G 10W SK-VTX11.

• Q: What is the starting price?
• A: The starting price is KM 208 for the 5.8G 400mW FT1573 variant.

• Q: What is the price of 5.8G 400mW FT1573?
• A: The price of the FT1573 400mW VTX is KM 208

• Q: What is the price of 5.8G 1.6W VTX-F1-72?
• A: The price of the VTX-F1-72 1.6W VTX is KM 232

• Q: What is the price of 5.8G 3W VTX-F2-72?
• A: The price of the VTX-F2-72 3W VTX is KM 301

• Q: What is the price of 5.8G 4W SK-VTX12?
• A: The price of the SK-VTX12 4W VTX is KM 370

• Q: What is the price of 5.8G 5W VTX-F18?
• A: The price of the VTX-F18 5W VTX is KM 407

• Q: What is the price of 5.8G 10W SK-VTX11?
• A: The price of the SK-VTX11 10W VTX is KM 602

• Q: Which is the smallest variant?
• A: FT1573 is the smallest variant with 20mm × 16mm × 5.4mm dimensions.

• Q: Which is the highest-power variant?
• A: SK-VTX11 is the highest-power variant with up to 10W or 10000mW output.

• Q: Which variant is best for racing drones?
• A: FT1573 is suitable for compact racing and lightweight FPV builds, while higher-power models are better for long-range builds.

• Q: Which variants support 72 channels?
• A: VTX-F1-72, VTX-F2-72, SK-VTX12 and VTX-F18 support 72-channel coverage from 4867MHz to 6100MHz.

• Q: Which variant supports 80 channels?
• A: SK-VTX11 supports 80 channels from 4867MHz to 6100MHz.

• Q: What frequency range does FT1573 support?
• A: FT1573 supports 5362MHz–5945MHz.

• Q: What frequency range do the 72CH variants support?
• A: The 72CH variants support 4867MHz–6100MHz.

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

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

• Q: What input voltage is supported?
• A: FT1573 supports DC 7V–28V. The other listed variants support DC 7V–36V.

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

• Q: What antenna connector does FT1573 use?
• A: FT1573 uses an IPEX antenna interface.

• Q: Which variants use MMCX antenna interface?
• A: VTX-F1-72 and VTX-F2-72 use MMCX antenna interfaces.

• Q: Which variants use SMA antenna interface?
• A: SK-VTX12, VTX-F18 and SK-VTX11 use SMA antenna interfaces.

• Q: What mounting pattern does VTX-F2-72 use?
• A: VTX-F2-72 uses 30.5mm × 30.5mm spacing with M3 threaded holes.

• Q: What mounting pattern do SK-VTX12, VTX-F18 and SK-VTX11 use?
• A: These variants use 20mm × 20mm spacing with M2 threaded or mounting holes.

Q: Is this suitable for long-range FPV drones? A: Yes. The higher-power variants 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 5.8G 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: The supported input voltage depends on the selected variant. Use clean power and verify voltage compatibility before installation.

• Q: Can the VTX be powered without antenna?
• A: No. Do not power a 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 compact builds?
• A: Choose FT1573 400mW for the most compact builds.

• Q: Which variant should I choose for medium-power FPV builds?
• A: Choose VTX-F1-72 1.6W or VTX-F2-72 3W depending on mounting and output requirement.

• Q: Which variant should I choose for high-power FPV builds?
• A: Choose SK-VTX12 4W or VTX-F18 5W for high-power long-range builds.

• Q: Which variant should I choose for maximum output power?
• A: Choose SK-VTX11 10W if maximum listed RF output is required.

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.