User Manual

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Document Reference Phalcon-NT11, Issue 2 and Date 24/10/18
THIS IS THE PROPERTY OF Pharos Marine Automatic Power. DISCLOSURE OR REPRODUCTION IS FORBIDDEN UNLESS AUTHORISED
Registered Address: 14 Castle Mews, Hampton, England, TW12 2NP Company Reg. No. 06757705 VAT Reg. No. GB222645483
Block Diagram and Construction
The Transponder comprises one major assembly that contains the S-band and X-band receivers, transmitters and
antennas, together with the signal processing and power conditioning sub-systems.
The Transponder can be considered as being two sub-assemblies: the Base Housing and the Radome. These sub-
assemblies are joined at the main flange where a gasket is used to prevent water ingress during severe climatic
conditions or accidental submersion to a depth of 2m.
The Base Housing is below the main flange and made from RIM plastic painted with two pack polyurethane primer
and top coat. Inside the Base Housing is the Main Electronics Assembly which is a hermetically sealed unit designed
to additionally protect the electronics from the environment. The Base Housing also contains two sealed connectors;
A. Flange Joint.
B. Breather.
C. Comms Connection.
D. Power connection.
E. Lightning Ground connection.