5W 400–470MHz smalbands RF-modem

In today’s industrial, UAV, and public safety applications, dependable wireless communication is essential. Choosing the right RF modem can be the difference between seamless operation and critical downtime. A recent client requirement demonstrates the features that modern RF modems must offer for high-performance wireless links.

I need an RF radio modem. The RF output power should be 5W, the operating voltage range should be 12-36V, the operating frequency band should be 400-470 MHz, the crystal accuracy should be 1ppm, the receiver sensitivity should be 9.6Kbps@-120dBm, the air data rate should be adjustable between 2.4Kbps and 200Kbps, operating in narrowband mode with a rate of 9.6Kbps at 10kHz and 19.2Kbps at 20kHz, supporting GMSK or 4FSK modulation, DIN rail mounting, including RS485 and RS232 interfaces, a well-ventilated metal casing, and equipped with an N-type female output connector.

High-Power RF Output for Extended Range

The client requested a 5W RF output, ensuring robust communication over long distances, even in urban or industrial environments with obstacles and interference. Operating in the 400–470 MHz frequency range, this modem is ideal for telemetry, fjärrkontroll, and data link applications.

Flexible Power Supply for Various Platforms

With a wide operating voltage range of 12V–36V, the modem can be easily integrated into UAVs, fordon, or industrial equipment without voltage compatibility issues.

High-Precision Frequency Stability

Equipped with a 1ppm crystal oscillator, the modem maintains stable frequency performance despite temperature and voltage changes, critical for narrowband operation and maintaining reliable data links.

Adjustable Air Data Rates for Optimal Performance

Air data rates can be adjusted between 2.4 Kbps and 200 Kbps. In narrowband mode:

• 10 kHz channel spacing → 9.6 Kbps
• 20 kHz channel spacing → 19.2 Kbps

This allows users to balance throughput and link reliability depending on application needs.

Dual Modulation: GMSK & 4FSK

Supporting both GMSK and 4FSK modulation, the modem provides flexibility for different operational priorities:

• GMSK: Spectrally efficient and robust in noisy environments.
• 4FSK: Higher throughput for applications demanding faster data rates.

Industrial-Grade Interfaces & Mounting Options

RS232 and RS485 interfaces enable easy integration with existing systems. DIN rail mounting allows secure installation in control cabinets or vehicles.

Rugged Metal Enclosure with Efficient Heat Dissipation

The metal casing ensures long-term reliability and excellent heat dissipation. The N-type female RF connector provides secure, low-loss antenna connectivity for maximum performance.

Ansökningar & Användningsfall

This high-power, narrowband RF modem is perfectly suited for:

• UAV Telemetry & Kontrollera: Reliable long-range transmission for sensor data, video feeds, and control signals.
• Industrial Automation: Remote monitoring and control of machinery in factories or outdoor environments.
• Public Safety & Emergency Services: Secure communication links in both urban and rural areas.
• SCADA & Telemetry Systems: Stable data transmission for energy, water, and transportation sectors.

Visual Suggestion: Include a diagram showing the modem connected to a UAV, an industrial controller, and a telemetry station to illustrate versatility.

Why This RF Modem Stands Out

Combining high output power, precise frequency stability, adjustable air rates, flexible modulation, and industrial-grade interfaces in one device makes this modem ideal for demanding wireless applications.

FAQ