HP / Agilent 11854A Accessory Kit, Type-N to BNC, 50 Ohms

The HP/Agilent 11854A Accessory Kit is a 50 Ohm adapter set that bridges Type-N and BNC connector ecosystems in RF and microwave test environments. It enables direct interconnection between equipment with disparate connector types—essential when pairing BNC-configured devices with Type-N network analyzers or test sets. The kit delivers passive RF performance without active gain or loss introduction, making it ideal for S-parameter measurement chains and transmission/reflection test setups.

– Technical Specifications

Electrical
• Impedance: 50 Ohms
• Return Loss: Typically 40 dB up to 1.3 GHz (all adapters)

Physical
• Connector Construction: Passivated stainless steel with gold-plated center conductors
• Enclosure: Protective wood box, 168 mm × 114 mm × 51 mm (6-5/8 in. × 4-1/2 in. × 2 in.)

– Key Features

The kit includes eight matched adapters covering all four mating combinations:
• Two Type-N male to BNC female adapters
• Two Type-N male to BNC male adapters
• Two Type-N female to BNC female adapters
• Two Type-N female to BNC male adapters
• One BNC male shorting cap for termination

Gold-plated center conductors and passivated stainless steel housings ensure stable electrical performance and corrosion resistance across repeated connections.

– Typical Applications

• Transmission/Reflection Test Sets (Agilent 8502A, Keysight 8502A)
• S-Parameter Test Sets (Agilent 8503A, Keysight 8503A)
• Power Splitter interconnection (Agilent 11850A, Keysight 11850A)
• Mixed-connector RF measurement benches

– Compatibility & Integration

Designed for integration into Agilent and Keysight test platforms requiring Type-N to BNC transitions. Return loss performance of 40 dB to 1.3 GHz supports low-noise small-signal measurements without significant reflection effects.