SAILOR Control Unit CU 5100 for MF/HF Radio – Installation, Repair & Maintenance
The SAILOR Control Unit CU 5100 is an advanced, user-friendly interface designed to operate MF/HF radio systems on board vessels. It is a critical component in maritime communication, particularly for distress and long-range communication, ensuring seamless performance during critical operations.
At SEANAV, we specialize in installation, repair, and maintenance of the CU 5100 for various SAILOR MF/HF radios. With a team of certified marine electronics engineers and availability of genuine parts, we provide fast and reliable services at all major Indian ports, including Mumbai, Kandla, Kochi, and Chennai.
What is the SAILOR CU 5100?
The CU 5100 is a controller unit for the SAILOR MF/HF radio series. It connects to transceivers like SAILOR 6301 or 6310, allowing operators to make voice calls, manage DSC alerts, and control frequencies. Designed for rough marine environments, it offers a robust and intuitive platform for reliable communication.

Our Services for SAILOR CU 5100
- New unit installation and commissioning
- Fault diagnosis and troubleshooting
- Replacement of control units
- Software update and interface calibration
- Spare parts supply including cables and connectors
- Annual maintenance contracts (AMC)
Whether your unit is malfunctioning or requires configuration, SEANAV provides both onboard and remote support. Our work complies with IMO, SOLAS, and GMDSS communication standards to ensure your ship remains fully operational and compliant.
Frequently Asked Questions (FAQ)
What does the CU 5100 do?
It acts as the main interface to control and monitor your MF/HF radio system, including voice, DSC, and channel selection.
Can the CU 5100 be repaired?
Yes, SEANAV offers full repair services for CU 5100 units including replacement of internal boards and interface correction.
Which radios are compatible with CU 5100?
The CU 5100 is typically used with SAILOR 6300 series MF/HF radios.
Do you install new CU 5100 units?
Yes, we provide supply, installation, and commissioning of brand-new SAILOR CU 5100 units.
Is onboard support available?
Yes, we offer onboard support in all major ports of India for setup, repair, or maintenance.
Do you offer remote diagnostics?
We offer limited remote diagnostics for pre-identified issues to support onboard engineers.
Can you supply cables and connectors?
Yes, we provide original accessories such as connectors, cables, and mounting brackets.
Do you offer warranty on repaired units?
Yes, SEANAV provides limited warranty on repairs depending on the nature of service.
Is the CU 5100 GMDSS compliant?
Yes, it fully supports GMDSS operations as part of SAILOR’s MF/HF communication system.
How long does repair take?
Basic diagnostics take 1 day, while repair can take 2–5 days depending on part availability.
Can you replace the unit if it’s not repairable?
Absolutely. We can supply a new or refurbished CU 5100 if the existing one is beyond repair.
Contact SEANAV today to schedule expert service for your SAILOR Control Unit CU 5100. We ensure compliance, performance, and fast turnaround at every Indian port.
