Published On: August 15, 2025Categories: Transceivers

When mission success depends on reliable communications, choosing the right transceiver is critical. Advanced Microwave Products designs high-performance microwave data links for UAVs, defense, and industrial applications. Two of our most popular solutions, the FMX1 and FSX1 transceivers, offer distinct advantages. But which one is right for your mission?

This guide breaks down their differences, ideal use cases, and key decision-making tips.

FMX1 vs FSX1: Understanding The Differences

The FMX1 and FSX1 are both rugged, compact RF transceivers, but they're designed with different mission priorities in mind.

  • The FMX1 is one of the smallest rugged RF transceivers available, measuring just about 1.2 cubic inches. It's built for size, weight, and power (SWaP) efficiency, making it a perfect match for small UAV platforms where endurance and weight savings are critical.
  • The FSX1, while still compact at 2.3 cubic inches, is designed for longer-range, higher-power missions. With RF output up to 2 watts and expanded frequency options, it provides the performance needed for BVLOS (Beyond Visual Line of Sight) and other advanced applications.

Both transceivers support configurable frequency bands and data ports, giving users flexibility to adapt to their mission requirements.

When To Choose The FMX1 Transceiver

Lightweight UAV Missions

The FMX1 is ideal for small UAVs where every gram counts. Its ultra-compact size ensures easy integration without overloading the platform.

Energy-Sensitive Operations

With lower power consumption, the FMX1 helps extend UAV flight times while maintaining a reliable data link.

Flexible Applications

Its configurable frequency options make it a versatile choice for testing, research, and missions requiring adaptable communications.

When To Choose The FSX1 Transceiver

Long-Range Communication

The FSX1 is built for missions that require extended range. With higher RF output power, it maintains strong, stable links even at greater distances.

BVLOS & Advanced Operations

For ISR missions, BVLOS operations, and heavy-duty UAVs, the FSX1 provides the power and frequency flexibility to meet demanding requirements.

Rugged Platforms

Slightly larger than the FMX1, the FSX1 is well-suited for medium to heavy UAVs and ground-based systems where size is less restrictive and performance is the priority.

FMX1 vs FSX1: How To Decide

When choosing between the FMX1 and FSX1, consider:

  1. Mission requirements: Do you need extended range and higher output power (FSX1), or compact efficiency (FMX1)?
  2. Platform constraints: Smaller UAVs benefit from the FMX1's size, while larger UAVs and ground systems can accommodate the FSX1.
  3. Endurance vs. performance trade-offs: Every mission requires balancing battery life, payload, and communication reliability.

Contact Advanced Microwave Products: Your Partner in UAV Communications

Advanced Microwave Products in Reno, NV, knows that choosing the right transceiver can make all the difference in mission success. Both the FMX1 and FSX1 are engineered to deliver reliable, high-performance communication solutions tailored to UAV, defense, and industrial needs.

Contact Advanced Microwave Products today to discuss your mission goals and let our experts guide you toward the right transceiver.