COUPLER MARKER BEACON (P/N dmb20-20) - As Removed

The dmb20-20 is a dual marker beacon coupler that combines one 75 MHz marker beacon antenna signal to two separate navigation receivers. This RF splitter uses 50-ohm BNC connectors and provides high isolation between receiver ports, preventing signal degradation and cross-talk. Compliant with FAA TSO-C53d standards, the coupler enables ILS marker-beacon system installations where a single airframe antenna must serve dual receivers.

Installation follows standard 50-ohm coaxial practices and avionics installation manual specifications. Critical for maintaining independent receiver operation in redundant navigation architectures.

What is the COUPLER MARKER BEACON (P/N dmb20-20)?

The dmb20-20 is a dual marker beacon coupler that combines one 75 MHz marker beacon antenna signal to two separate navigation receivers. This RF splitter uses 50-ohm BNC connectors and provides high isolation between receiver ports, preventing signal degradation and cross-talk.

Is the dmb20-20 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The COUPLER MARKER BEACON is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the dmb20-20 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the dmb20-20?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.