KELVIN HUGHES Circulator MK5 RADAR – Marine Radar Component Service & Support
The KELVIN HUGHES Circulator MK5 RADAR is a critical component in the radar transceiver chain, responsible for routing high-frequency signals between the magnetron and antenna system. Found in various Kelvin Hughes radar models, including the MantaDigital and Nucleus series, the MK5 circulator is essential for proper radar transmission and reception. At SEANAV, we specialize in servicing, repairing, and supplying MK5 circulators to ensure radar systems on commercial, naval, and cargo vessels function with optimal efficiency.
If your radar is experiencing weak signal transmission, no target returns, or intermittent echoes, the circulator may be at fault. Our experienced marine electronics engineers provide onboard diagnostics, part replacement, and complete testing to restore full radar functionality. Trust SEANAV for reliable, cost-effective marine radar support.
What is the Circulator MK5 in a Kelvin Hughes Radar?
The Circulator MK5 is a non-reciprocal passive component used to separate transmitted and received signals. It ensures that high-powered pulses from the magnetron are sent to the antenna, while received signals are directed safely to the receiver without damaging the transmitter. This isolation is essential for radar performance and protection of sensitive electronics.
Common Symptoms of MK5 Circulator Failure
- Radar does not detect targets
- Weak or fading echoes on the display
- High VSWR warnings or transmitter overload
- Burnt smell or physical signs of heat damage
- Microwave leakage due to internal failure
SEANAV’s Circulator MK5 Repair and Replacement Services
- Component-level diagnostics and repair
- Replacement of damaged circulators with OEM or compatible parts
- High-voltage and microwave performance testing
- Onboard installation and alignment
- Warranty-backed services and rapid turnaround
11 FAQs About the Kelvin Hughes Circulator MK5 Radar
1. What does the circulator MK5 do?
It routes microwave signals between the transmitter and receiver in radar systems, ensuring signal separation.
2. Which Kelvin Hughes models use the MK5 circulator?
It’s used in models such as MantaDigital and Nucleus 5000/6000 radar systems.
3. What are signs of circulator failure?
Loss of radar returns, signal distortion, or internal damage symptoms.
4. Can the circulator be replaced?
Yes, SEANAV supplies and installs MK5 circulators as part of radar servicing.
5. Is it safe to continue using a faulty circulator?
No. It can cause permanent damage to the transmitter or receiver if not addressed.
6. Do you offer onboard service?
Yes, SEANAV provides global onboard support and dockside diagnostics.
7. How long does the replacement take?
Most repairs or replacements can be completed within 2–4 days.
8. Are original parts used?
We use OEM parts where available and high-quality tested alternatives when necessary.
9. Can I send the unit for offsite service?
Yes, we accept shipped units and return them fully tested with service reports.
10. What causes circulators to fail?
Overheating, power surges, microwave leakage, or age-related degradation.
11. Do you provide testing after installation?
Yes, full radar calibration and performance tests are included with service.
Why Choose SEANAV for MK5 Radar Circulator Service?
With years of experience in marine radar systems, SEANAV provides trusted solutions for radar circulator issues. Our certified technicians offer fast, accurate, and warranty-covered repair and replacement services for Kelvin Hughes radar components. Let us help you maintain full radar functionality and safety on the seas.
Need radar magnetron services? Explore our post on Kelvin Hughes Manta 2300 MK4 Magnetron M1458A.
For official product information, visit the HENSOLDT (Kelvin Hughes) Official Website.
