Kelvin Hughes ST250 Radar Performance Monitor Antenna
Ensure optimal radar performance with the genuine Kelvin Hughes ST250 Radar Performance Monitor Antenna. This robust, weatherproof X-Band transponder antenna is essential for verifying transmitter and receiver health on Kelvin Hughes marine radar systems.
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Kelvin Hughes ST250 Radar Performance Monitor Antenna
The Kelvin Hughes ST250 is a dedicated X-Band transponder antenna designed for use with radar performance monitoring systems. Engineered for reliability in harsh marine environments, it plays a crucial role in verifying the operational status of your vessel’s radar. The ST250 receives test pulses from the main radar and transmits a calibrated signal back, allowing the system to continuously measure and confirm key performance indicators such as transmitter power and receiver sensitivity. Its robust, weatherproof construction with a sealed flange base ensures long-term performance and accurate diagnostics, making it an essential component for maintaining the integrity and safety of Kelvin Hughes radar installations, including the advanced SharpEye™ series.
Technical Specifications:
- Frequency Band: X-Band
- Polarization: Horizontal
- Application: Radar Performance Monitor (RPM) Transponder
- Compatibility: Kelvin Hughes X-Band Radar Systems (e.g., SharpEye™ Series)
- Construction: Weatherproof, marine-grade radome for external mounting

| Brand | Kelvin Hughes |
|---|---|
| Model | ST250 |
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ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
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