Describe the procedure used to route coaxial cable from an antenna to a receiver.

Describe the procedure used to route coaxial cable from an antenna to a receiver.

• A. The cable should be supported every 2 feet, bends should be 10 times the cable diameter, and it should be routed separately from other wires.
• B. The cable should be routed along power cables to utilize space
• C. The cable should be routed inside the aircraft skin
• D. The cable should be run in a metal conduit that is grounded.

Answer: (A)

Routing coax from an antenna to a receiver is all about protecting the signal and preventing interference in the aircraft environment. Keeping the cable supported every two feet helps avoid sag, fatigue on connectors, and movement that can loosen connections during vibration. A bend radius of about ten times the cable diameter avoids sharp turns that can change impedance, create reflections, or damage the shielding, which would degrade the received signal. Placing the coax away from other wires prevents EMI and crosstalk from power or data cables, preserving the integrity of the RF path. The other approaches invite problems: running coax alongside power cables increases noise pickup; routing inside the skin risks abrasion, heat, and damage and isn’t a standard protective pathway; using a metal conduit adds weight and routing complexity without necessarily improving performance for a typical antenna feed. Following these practices keeps the RF path clean, reliable, and easy to service.

Routing coax from an antenna to a receiver is all about protecting the signal and preventing interference in the aircraft environment. Keeping the cable supported every two feet helps avoid sag, fatigue on connectors, and movement that can loosen connections during vibration. A bend radius of about ten times the cable diameter avoids sharp turns that can change impedance, create reflections, or damage the shielding, which would degrade the received signal. Placing the coax away from other wires prevents EMI and crosstalk from power or data cables, preserving the integrity of the RF path.

The other approaches invite problems: running coax alongside power cables increases noise pickup; routing inside the skin risks abrasion, heat, and damage and isn’t a standard protective pathway; using a metal conduit adds weight and routing complexity without necessarily improving performance for a typical antenna feed. Following these practices keeps the RF path clean, reliable, and easy to service.