Kimpok Ultra Long Range Flight 1.2G 1080MHz-1360MHz 4W VTX Drone Accessory Video Transmitter Switchable Power 25mW/2000mW/4000mW FPV VTX 9CH Image Transmission Shenzhen Made

Product Description:

Here is a detailed description of the advantages of a 1.2GHz frequency, 4W (25mW/2000mW/4000mW), 9CH VTx (Video Transmitter) for drones.

Advantages of a 1.2GHz, 4W (Multi-Stage), 9CH VTx

This VTx configuration represents an extreme, non-standard, and highly specialized tier of FPV video transmission, pushing the very boundaries of what is technically feasible and legally permissible for airborne use. Its advantages are tailored to a very narrow set of mission profiles where the need for an ultra-redundant signal margin outweighs all other considerations.

1. Foundational Propagation Advantage (1.2GHz Band)

Optimal Low-Frequency Physics:The 1.2GHz band is the de facto standard for extreme-range FPV due to its favorable propagation characteristics. Compared to 5.8GHz, it suffers significantly less from free-space path loss​ and provides better signal diffraction​ around terrain and penetration through atmospheric clutter. This makes it the most efficient carrier frequency for attempting maximum possible transmission distance.

2. Extreme Power & Strategic Power Management (4W Max, Three-Stage)

Unprecedented Signal Strength & Link Budget:The 4W (4000mW) maximum power output is the singular, defining advantage of this unit.It provides a massive, surplus "link budget" designed to overcome the most severe attenuation, penetrate more challenging environments, or simply provide an extraordinary fade margin for the ultimate in signal reliability at distances that push the limits of other system components (like RC control and battery).

Strategic Three-Stage Power Control:The switchable output (25mW/2000mW/4000mW) allows for critical operational management of this immense power.

Safe/Low (25mW):The mandatory safety and legal mode for all ground operations, including testing, setup, takeoff, and landing. It ensures compliance with local RF exposure limits and prevents interference in shared spaces.

High (2000mW):Functions as a powerful "standard" long-range cruise mode.​ This setting alone exceeds the capability of most consumer VTxs and is sufficient for the majority of extreme-distance flight. It provides excellent performance with less heat and power draw than the maximum setting.

Maximum/Contingency(4000mW):This is a specialized "boost" or "emergency penetration" mode.It is deployed in scenarios of last resort: to punch through unexpected RF noise, penetrate a known area of difficult signal propagation (e.g., flying at very low altitude behind multiple terrain features), or recover a rapidly degrading video link at the absolute limit of range. The advantage is having this immense power reserve available when all other options are failing.

3. Enhanced Channel Selection (9CH)

Superior Interference Avoidance and Coordination:The 9 channels provide an even finer granularity of frequency selection within the 1.2GHz band compared to the standard 8CH. This allows for more precise "channel hunting" to find the absolute quietest frequency, minimizing the chance of co-channel interference, which is critical when operating at such high power levels that can both overcome and cause interference.

Advanced Multi-System Operations:Essential for complex professional deployments. It enables the seamless coordination of multiple high-power 1.2GHz systems (e.g., a primary drone, a backup drone, and a ground-based relay) on closely spaced but non-interfering channels, supporting sophisticated mission architectures.

Synthesis and Purpose

The advantage of a 4W VTx is not about achieving linearly more range than a 2W unit; RF propagation does not work that simply. Instead, its advantage is about providing an extreme, non-linear margin of safety and reliability.

It offers a massive "power reserve"​ that can be deployed to combat worst-case signal degradation, ensuring that the video link is the last point of failure. In professional applications, this margin can be the difference between mission success and catastrophic data loss.

Critical Imperatives, Caveats, and Warnings:

Stringent Legal and Licensing Requirements:A 4W (4000mW) VTx operates in a highly regulated power class.Its legal use absolutely requires not only an amateur radio (Ham) license but also strict adherence to band plans, RF exposure (RF Safety) regulations, and potentially special permits. Unlicensed operation is illegal and irresponsible.

Extreme Integration and Hardware Demands:

Power Supply:It requires an exceptionally robust, dedicated power delivery system. Expect peak current draws of 7A to 9A+ at 12V. The power source (battery, regulator) must be clean, stable, and capable of handling this load without voltage sag or noise that could affect other flight electronics.

Thermal Management:This is the primary engineering challenge.Dissipating ~4W of RF heat (plus inefficiency losses) requires a massive, actively cooled heatsink and likely a dedicated cooling fan. The VTx must be mounted in a location with the highest possible airflow. Thermal failure is instantaneous without this.

Antenna System:Imperative.It must be used with a perfectly matched, ultra-high-quality, and efficient antenna.Any Voltage Standing Wave Ratio (VSWR) mismatch will reflect substantial power back into the VTx's final amplifier stage, causing immediate and permanent damage. The ground station must​ use a high-performance, high-gain directional antenna system (e.g., a large helical or parabolic dish) to effectively receive the signal.

Electromagnetic Compatibility (EMC) Concerns:The extreme RF field generated can interfere with onboard electronics (flight controller, GPS, telemetry). Careful physical separation, shielding, and the use of ferrite chokes are mandatory.

Battery and Weight Penalty:The high current draw significantly reduces overall flight time. The unit and its cooling system add considerable weight.

Summary:

The 1.2GHz, 4W (switchable), 9CH VTx is a highly specialized, professional-grade tool for the most demanding and mission-critical BVLOS applications where video link reliability is paramount and cost/weight/complexity are secondary concerns. Its advantage is providing an extraordinary power reserve and link margin to guarantee signal integrity in the most challenging and unpredictable RF environments. It is used by experts in fields like long-range scientific survey, specialized industrial inspection, or advanced aerial reconnaissance, where the consequence of video loss is unacceptable. Its deployment requires expert-level knowledge in RF engineering, drone integration, and strict regulatory compliance.

Applications:

The Kimpok Technology is a Compact FPV Video Transmitter designed and manufactured in China, offering exceptional performance for a variety of FPV applications. This Low Latency FPV VTX ensures real-time video transmission with minimal delay, making it ideal for drone racing, aerial photography, and immersive first-person view experiences. Whether you are a professional pilot or an enthusiast, this transmitter delivers reliable and clear video signals over long distances.

Thanks to its Long Range FPV Transmitter capabilities, the item is perfect for scenarios requiring extended flight ranges, such as exploring vast outdoor environments, conducting search and rescue operations, or capturing expansive landscapes from the sky. Its compact size allows for easy integration into various drone models without adding significant weight or bulk, enhancing flight agility and maneuverability.

With a monthly supply ability of 50000 pieces and a minimum order quantity of just one piece, Kimpok Technology provides flexible purchasing options to meet different customer needs. The product comes with CE Certification, ensuring it meets international quality and safety standards. Buyers can negotiate pricing directly and benefit from convenient payment methods including T/T, Western Union, and PayPal.

The FPV VTX is packaged using international standard packing, guaranteeing safe delivery within 3-7 working days. This makes it an excellent choice for hobbyists, professional drone racers, and commercial users who require fast and reliable shipping. Its robust design and high-performance features make it suitable for diverse application occasions such as racing events, filmmaking, outdoor exploration, and technical inspections.

In summary, the Kimpok Technology Compact FPV Video Transmitter offers outstanding low latency video transmission, extended range capabilities, and user-friendly purchasing conditions. Its versatility and quality make it a top choice for anyone looking to enhance their FPV experience with a trusted, certified product from China.

Support and Services:

Thank you for choosing the FPV VTX. Our technical support team is dedicated to providing you with the best service and assistance for all your product needs. If you encounter any issues or have questions about installation, configuration, or operation, please refer to the user manual included with your product for detailed instructions and troubleshooting tips.

For firmware updates and additional resources, please visit our official website. We regularly update the firmware to improve performance and add new features, ensuring your FPV VTX operates at its best.

If further assistance is required, our support team is available to help diagnose and resolve any technical problems. We recommend providing detailed information about your setup and the issue you are experiencing to expedite the support process.

We are committed to your satisfaction and aim to provide timely and effective solutions to enhance your FPV experience.

Packing and Shipping:

Product Packaging: The FPV VTX is securely packaged in an anti-static bag to protect against electrostatic discharge. It is then placed inside a sturdy box with foam padding to prevent any damage during transit. The package includes the FPV VTX unit, a user manual, and necessary mounting accessories.

Shipping: We offer worldwide shipping with reliable carriers to ensure your FPV VTX arrives safely and promptly. Orders are processed within 1-2 business days, and tracking information will be provided once your package is dispatched. Please allow additional time for customs clearance in your country.

FAQ:

Q1: Where is the FPV VTX manufactured?

A1: The FPV VTX is manufactured in China by Kimpok Technology.

Q2: What certifications does the KP-12TX8WD FPV VTX have?

A2: The FPV VTX has CE certification, ensuring it meets European safety and quality standards.

Q3: What is the minimum order quantity for the FPV VTX?

A3: The minimum order quantity for the item is 1 piece, making it accessible for both individual buyers and bulk orders.

Q4: What payment methods are accepted for purchasing the item?

A4: We accept T/T (Telegraphic Transfer), Western Union, and PayPal as payment methods for your convenience.

Q5: How quickly can I expect delivery after placing an order for the item?

A5: The delivery time is typically between 3 to 7 working days, depending on your location and shipping method.

Q6: What is included in the packaging of the FPV VTX?

A6: The item comes in international standard packaging to ensure safe and secure delivery.

Q7: What is the supply capacity for the FPV VTX?

A7: Kimpok Technology can supply up to 5000 pieces of the FPV VTX per month.

Q8: How is the price of the FPV VTX determined?

A8: The price of the item FPV VTX is negotiable. Please contact us directly to discuss pricing based on your order quantity and requirements.