Descrizione

VHF/UHF radio family for ATC communications
Key Facts
  • VHF frequency range from 112 MHz to 156 MHz
  • UHF frequency range from 225 MHz to 400 MHz
  • Output power of 50 W for VHF and UHF
  • Automatic main/standby operation
  • USB service port for confi guration and software downloads
  • Remote control and remote monitoring via Ethernet interface
  • Best signal selection in the receiver
  • Data transmission in line with VDL mode 2 standard
  • VoIP in line with EUROCAE ED-137
  • Detection of simultaneous transmissions in the receiver

Brief Description The R&S®Series4200 represents the latest generation of stationary radios for both civil and military air traffic control. Possible applications range from small airport emergency systems requiring only a few radio channels to countrywide communications systems with several hundred radio channels. Equipment for the VHF and UHF frequency ranges The R&S®Series4200 is available in six versions: transceiver, transmitter and compact receiver. The R&S®Series4200 radios for the VHF frequency range (112 MHz to 156 MHz) are suitable for civil applications. The R&S®Series4200 radios for the UHF frequency range (225 MHz to 400 MHz) are suitable for applications in military air traffic control (air force, navy, army aviation forces). The UHF transceiver allows an external encryption device to be connected. Wide application range and simplified radio planning, even in challenging environments The R&S®Series4200 offers an extremely wide range of possible configurations, allowing optimal adaptation to the desired application scenario. The radios were implemented on a software basis in order to provide users of the R&S®Series4200 with the widest possible range of applications. New functions are implemented through software upgrades that Rohde & Schwarz makes available. All radios of the R&S®Series4200 are multichannel radios, but they can also be software-configured for reliable operation as single-channel radios. Redundant operation of two radios in order to boost the channel availability is possible without any external monitoring and switching equipment. Standard functions include 8.33/25 kHz channel spacing for VHF and 8.33/12.5/25 kHz channel spacing for UHF, carrier offset 1 to 5 (VHF), ACARS and VDL mode 2 data mode (VHF), LAN remote-control interface, serial interface for controlling automatic filters, and in-band signaling for push-to-talk (PTT) and squelch (SQ) with the capability to set different tones. The R&S®Series4200 radios support digital voice transmission using the ITU-T G.703 PCM interface and VoIP in accordance with EUROCAE specifications.
Features & Benefits
  • Easy to use even in challenging environments
    • Demanding system requirements of civil air traffic control are met or exceeded
    • Excellent RF characteristics
    • Adjacent-channel power better than required by ETSI standard
    • Very low transmitter noise
    • High intermodulation rejection
    • High output power at high modulation depth
    • Very low receiver noise
    • Receiver with excellent immunity to interference
    • Crossmodulation rejection better than required by ETSI standard
    • Two squelch criteria available
    • Low noise/low distortion receiver mode
  • Maintenance-free operation
    • Extensive self-test routines
    • Simple remote monitoring and remote control
    • Automatic adaptation to ambient conditions
    • Easy remote switching when using redundant radios
    • Electronic inventory and recalibration
    • No recalibration for 15 years with optional OCXO
  • Straightforward operation and configuration
    • PC-based tools with graphical user interface
    • Reliable protection against operation errors
    • Warning messages in case of unauthorized local operation
    • Easy remote control and monitoring via IP connection
  • Flexibility for system integration
    • Adaptation of in-band signaling for PTT and squelch to existing voice communications systems
    • Flexibility in management system selection
    • Seamless transition from analog to digital voice transmission in the ground segment
    • Support for voice over IP
  • Small footprint due to compact, modular design
    • Very compact design
    • Three basic modules: transmitter, receiver, power supply unit
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