ADAPTER coaxial, PL to BNC, MxF


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Former Code(s): PCOMADAC4MF
OC subscriptions: included in supply or field order tools (e.g. UniField)
SC subscriptions: included in supply or field tools
OC validations: approved for procurement and use by an OC for international or local orders specifying context and activity in Medical Standard Lists (MSL)

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ADAPTER coaxial


Accessory consisting of a connector fixed to a coaxial cable, which is placed between 2 connectors (to extend a cable or to switch to another type of connector).


There is a wide variety of connector types for different frequency bands. MSF radio installations use BNC and UHF PL connectors. Satcom installations usually use N and SMB connectors.

Each connector type comes in different models: male, female, for mounting on cables (RG58, RG213, RG214 and RG223), or for mounting on a chassis.

Adaptors (combining 2 different connectors) are available in almost all the combinations of male, female, straight or 90º elbow.

PL connectors

  • Used by MSF in all HF and some VHF installations (not particularly suitable for UHF)
  • Coupling system: plug in and screw
  • Impedance: 50 ohms
  • Frequency range: HF, VHF, UHF

BNC connectors

  • Used by MSF in VHF installations
  • Coupling system: bayonet
  • Impedance: 50 ohms
  • Frequency range: HF, VHF, UHF

N connectors

  • Used in UHF installations, and in some satcom installations
  • Coupling system: plug in and screw
  • Impedance 50 ohms

Instructions for use

When ordering cables, it is important to specify the connectors you need:

  • VHF installations: BNC and UHF PL connectors
  • HF installations: UHF PL connectors only
  • satcom installations: N and SMB connectors

A connector should never carry the weight of a cable. A cable must be connected and fastened as indicated in the diagram.

Never use tools to tighten a connector.

To unplug a cable, pull on the connector, never on the cable.

Unplug the connector during a thunderstorm and place the coaxial cable outside the building.

Use vulcanizing tape to protect connectors located outside against humidity.

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MSF requirements

Soldered connectors are preferable to crimped connectors, as the latter give poor signal quality after prolonged use.