DEVICE: MAGNETRON
BRAND: JRC
TYPE: M1475A
JRC M1475A X-Band Magnetron
Overview
The JRC M1475A is a precision-engineered magnetron designed for use in marine X-band radar systems. Operating at a fixed frequency of 9345–9405 MHz, it delivers a powerful 25 kW peak output, ensuring clear and reliable radar detection in challenging maritime environments.
This magnetron is the ideal replacement when radar echo strength or tuning performance begins to decline—typically after around 5,000 operational hours of transmission.
Key Features
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Fixed X-Band Frequency: Operates reliably within a tightly controlled range of 9345–9405 MHz.
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High Peak Power: Generates up to 25 kW peak output for robust radar signal strength.
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Precise Electrical Specs: Typical operation includes a peak anode voltage of around 8 kV and peak current of 8 A, with heater specifications around 6.3 V and 0.52 A.
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Pulse Handling: Supports duty cycles of 0.001 (0.1 %) and pulse durations up to 1.2 µs—optimized for rapid radar pulsing.
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Sturdy Build & Compact Form: Air-cooled design with standard WR-90 waveguide interface, UG-135/U-compatible flange, and weighs ~0.7 kg.
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RoHS Compliant: Built to meet current environmental and safety standards.
Maintenance Note
To sustain optimal radar function, it is recommended to replace the magnetron after roughly 5,000 transmit hours, alongside carbon brush servicing, to restore echo clarity and performance.
Specifications Snapshot
| Feature | Specification |
|---|---|
| Frequency | 9345 – 9405 MHz (Fixed) |
| Peak Output Power | 25 kW |
| Peak Anode Voltage | ~8 kV |
| Peak Anode Current | ~8 A |
| Heater Voltage / Current | ~6.3 V / 0.52 A |
| Duty Cycle / Pulse Duration | 0.001 / up to 1.2 µs |
| Cooling Method | Air / Forced Air |
| Weight | ~0.7 kg |
