R&S®GB5450 RCU Radio control unit

Standalone and independent air-ground communications device

R&S®GB5450 RCU Radio control unit
R&S®radio control unit, front high
R&S®radio control unit, front high
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R&S®GB5450 RCU Radio control unit
R&S®radio control unit, front low
R&S®radio control unit, front low
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R&S®GB5450 RCU Radio control unit
R&S®radio control unit, side view
R&S®radio control unit, side view
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R&S®GB5450 RCU Radio control unit
R&S®radio control unit, back high
R&S®radio control unit, back high
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Key facts

  • Efficient solution for airports, emergency communications and technology rooms
  • Assignment of up to 12 frequencies
  • Easy configuration via device web browser 
  • Future proof - upgradeable to full-size VCS
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Brief description

Intuitive and user friendly full functional radio control unit for radiocommunications

The radio control unit (RCU) is based on the R&S GB5450 and is a terminal for air-ground communications. The radio control unit provides a wide range of functions for air traffic controllers. Based on the B5450R-PL license, the R&S GB5450 can be operated in standalone mode for air-ground communications without any VCS server components. It can be connected as many as 12 radios and two recording sessions. Optional migration to a centrally managed VCS is also available. The radio control unit can be monitored using the SNMP protocol from the customer umbrella management (e.g. RCMS).  Depending on the task (tower/area control center), the system offers the following functions and services:

  • air-ground communications
  • radio status monitoring
  • radio frequency change 
  • radio split site operation
  • cross coupling
  • emergency call and PPT
  • and others
The radio control unit is connected to the radios using the ED-137 communications protocol with two fully redundant Ethernet interfaces which can be linked to two independent Ethernet switches. If there is a network failure, the Ethernet interfaces automatically switch from main to standby and no connected calls are dropped. 

Quick links

Features & benefits

Easy configuration via web

Local setup and configuration directly via web on the RCU

The radio control unit can be set up without any server component. The simple web configuration makes the radio control unit ideal for small to medium-sized airports, emergency communications or installation in technical rooms.

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Radiocommunications with up to 12 frequencies

RCU enables air-ground communications with up to twelve frequencies (RX, TX or RTX)

The main RCU screen has a large area for the radio operational button that controllers can use to operate the allocated radio resources, change the radio selection, control the radios and view the main status of the radio resources. 

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Cross coupling (XC)

Automatic retransmission of received signal in one radio frequency to other radio frequencies in the cross coupling group

The cross coupling (XC) radio function enables automatic retransmission of received signals in one radio frequency to other radio frequencies in the cross coupling group. Cross coupling can combine a number of radio resources into a logical group where a transmission is heard by all group members, depending on the cross coupling mode.  

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Broad air-ground functions

Besides radio-specific functions, the system offers several general features that improve the user experience and ensure safety during ATC operations

Features include short term recording for instant replay of recent radiocommunications at the radio control unit and a second short term replay option: the "Say again" function that lets controllers listen to the most recent communications.

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Available options

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