R&S®VHF/UHF Multichannel Transceivers

VHF R&S XU452U(.); UHF R&S XD432U(.); VHF/UHF R&S XT452U(.)

Options

Designation
Type		 Uses, specifications, features and benefits
Options
Control Unit
R&S® GB406		For ground-to-air and naval radiocommunications.
Note: For further information, see Related Links at the bottom of this page
Bus Coupler
R&S® GV400		For the configuration of complex radio systems with several (m) Control Units R&S® GB406 and several (n) radios
Note: For further information, see Related Links at the bottom of this page
Front Options
VHF/UHF Guard Receiver
R&S® ET402
  • Complete independent dual receiver
  • Monitoring of the international distress frequencies in the VHF (121.5 MHz) or UHF range (243 MHz)
  • VHF/UHF switchover
    - manual by front panel switch or
    - automatic depending on the main receiver frequency range
  • Antenna connection
    - via main receiver or
    - via separate Guard RX Antenna Interface R&S® GI417U (option)
  • Special transceiver models (e.g. .27 + .28) allow two R&S® ET402 to be inserted
    in parallel for simultaneous monitoring of the VHF and UHF distress frequencies
  • Sensitivity: =2.5 µV (VHF)/=3 µV (UHF) (m = 0.3; fm = 1 kHz; S + N / N = 10 dB, weighted to ITU-T)
  • Image rejection =80 dB
  • Design 1/16 19" front modules
VHF/UHF Preselector
R&S® FT402
  • Automatically tuned preselector filter, interfaced in front of the receiver RF unit
  • For improvement of reception under critical collocation conditions: this option protects
    especially against strong far-off transmit frequencies. R&S® FT402 does not
    replace high-selectivity filters such as R&S® FD221 for nearby-interference suppression
  • Selectivity: bandwidth =13 (25)% VHF/=16 (29)% UHF at 10 (15) dB
  • Permissible input level without damage 50 V EMF (f =30 MHz)/15 V EMF (f >30 MHz)
  • Insertion loss 3 dB typ. (=4 dB)
  • Tuning time =200 µs
  • Design 1/16 19" front modules
VHF/UHF TX/RX Filter
R&S® FT403TR
  • Combined pre/postselector filters for receive and transmit mode
  • For improvement of reception quality (desensitization, IF and image rejection) under critical co-site conditions
  • For improvement of transmission quality (sideband noise)
  • For reduction of necessary TX-to-RX antenna decoupling for interference-free operation
VHF TX/RX Filter
R&S® FU403TR
  • For fixed-channel or FH mode
  • Automatically tuned, switched and interfaced
  • in front of RX VHF/UHF Unit R&S® FT400 (RX mode) or
  • between synthesizer and power amplifier (TX mode)
UHF TX/RX Filter
R&S® FD403TR
  • Included
  • Logic circuits for frequency data encoding, Go/Nogo status etc
  • 2-pole filters
  • Fast GaAs FET switches
  • Low-noise amplifiers for loss compensation
  • Lowpass filters as lightning protection
  • Selectivity: bandwidth =2.2% at 3 dB and =13.3% at 30 dB
  • Tuning time 10 µs
  • Design 2/16 19" front module
Loudspeaker
R&S® GA400
  • For local operation
  • In combination with handheld Microphone R&S® GA016H1 (transceivers)
LINK 11 Module
R&S® VX411
  • For operation with wideband AF signals in LINK 11 mode for special data transmissions in defense applications(NATO)
  • For use in conjunction with IF/AF Unit R&S® VZ400D2 and Cipher/LINK 11 Interface R&S® GI412U
  • LINK 11 specification according to STANAG 5511 (2nd edition)
  • Design 2/16 19" front module

    • Note: For standalone RX equipment R&S® VX411 is not required for LINK 11 operation (R&S® VZ400D2 andR&S® GI412U are sufficient)
UHF Circulator Set
R&S® GD430U
  • For interference-free transmission under critical collocation conditions, i.e. many transmitting antennascosited
  • For reduction of the TX intermodulation by
    increasing the backward intermodulation attenuation
  • Suppression or reduction of unwanted mixture products which are generated in the transmitter in an electromagnetic
    environment and which interfere with the actual frequency band
  • Integration: the circulator module of this set can be
    - interfaced in front of the harmonics filter where it is most effective and
    - mounted directly onto the heat sink of the UHF or VHF/UHF power amplifier
Rear Options
Wideband/Frequency Interface
R&S® GI411U
  • Wideband AXX data communication
  • External AGC indication
  • EPM (ECCM) operation
Cipher/LINK 11 Interface
R&S® GI412U
  • Cipher operation with standalone KY-58 cipher unit (operated without HAVE QUICK EPM (ECCM) processor in fixed-channel mode)
  • Cipher operation with other COMSEC devices (TDB)
  • With control facility of plain or cipher text, baseband (NB) or diphase (WB)
  • LINK 11 modem connection
AF/V24 Interface
R&S® GI413U
  • AF line connection (not required for AF in connection with DTMF)
  • PTT via separate or AF phantom line
  • V24/RS-232-C/RS-485 bus control
  • Cipher operation
  • EPM (ECCM) operation
  • AF level control: ALC (automatic level control) amplifier included
  • Separate GUARD RX AF outputs
  • Relay outputs for TEST, CARRIER and/or MAIN RX SQUELCH and
  • SQUELCH of GUARD RX 1 + 2 (recommended for special transceiver type models for two R&S® ET402)
Filter/PA Interface
R&S® GI414U
  • Control of 1 (2) automatically tuned filter(s)
  • Control of 1 (2) Rohde&Schwarz linear power amplifier(s)

    • Note: Model .04 is for 2 filters and amplifiers each
DTMF Interface
R&S® GI416U
  • DTMF (dual tone multiple frequency) code radio control (incl. AF) according to ITU-T recommendation Q 23 for Control Units R&S® GB406C3/H3/S3
  • V.11 (X.27)/RS-422-A (R&S® Series400 F-type) radio control: for Control Units R&S® GB404 or R&S® GB408
  • PTT by 2040 Hz tone via AF line (with tone-operated switch and filters) MAIN/STANDBY switching
  • Customer-specific I/O ports, controlled from a PC or by DTMF, allowing the display of user-definable tests (BIT) via Control Units R&S® GB406C/H/S…
Guard RX Antenna Interface
R&S® GI416U
  • Connection of two additional and separate VHF and UHF guard RX antennas (or of one VHF/UHF Dipole R&S® HK014 via Diplexer R&S® FT224)
  • Additional multipurpose RF socket for special customized applications, e.g. for an external drive unit
  • 3 BNC sockets
Antenna Interface
R&S® GI418U
  • Connection of additional antennas, e.g. in EPM (ECCM) radio systems
  • Addition TX/RX switch (in U3 type transceivers, model .13, this combination is included as standard)

    • Note: There is also R&S® GI418U model .12 which is used as standard alternatively to the TX/RX switch in transceiver models .13 and .28 etc
AF/Telephone Interface
R&S® GI419U
  • AF line connection
  • TX and RX AF/telephone line protection
  • With 1.5 kV isolated 600 O transformers to protect the radio/operator according to EN4103/BZT guideline
  • With lightning fine protection
  • PTT via phantom circuit
  • Transmitting with 8.33 kHz channel spacing
  • With TX AF filter with 4 switchable upper stop frequencies 2.5/2.7/2.9/3.15 kHz (3.4 kHz in addition as radio standard)
  • Local and remote filter selection
DC/100 W FM Interface R&S® GI420U
  • Models .02 and .03: DC supply of Control Units R&S® GB406C/H/S…
  • Model .03: connection of Power Supply R&S® IZ450 for 100 W FM UHF operation
Parallel Interface R&S® GI421U Parallel control via previous R&S® Series400 N-type interface
  • from Control Unit R&S® GB403
  • from other N-type equipment
LINK 11 Interface R&S® GI422U
  • LINK 11 modem connection if COMSEC is not required
  • LINK 11 squelch signaling

    • Note: R&S® VX411 is not required for this application
Auxiliary Equipment
Power Supply
R&S® IZ450		 For upgrade of a transmitter or transceiver to 100 W FM UHF
  • Generation of the collector voltage for this mode
  • Sensor-controlled forced air cooling of the radio (the sensors measure the heat sink temperature of R&S® VD430U or R&S® VT450U power amplifier)

19" 3 HU add-on unit for installation underneath the radio unit: the cooling air is sucked in from the front and routed upwards to the cooling fins of the amplifier heat sink; AC and DC with automatic switchover (priority to AC)
Shockmount
R&S® KS450		 Transportable/mobile use of transceivers
xx = 02: Standard model
xx = 06: Heavy-duty model with blower and additional 19" 1 HU space for 12 V/24 V
Converter R&S® IN452 etc (tbd); incl. DC cable to R&S® IN452
12 V/24 V Converter
R&S® IN452		 For mobile operation of a transceiver with nominal RF output power
– In older vehicles with 12 V DC board net
– With negative pole to ground/chassis
– Input specification: 10 V to 16 V DC; 50 A max. (current-limiter-protected)
– Output specification: 26 V ±1 V, 350 V max.
– Efficiency: >80%
– Principle: transformer-less and MOSFET-switched
– 19" 1 HU plug-in; W × H × D = 483 mm × 44 mm × 452 mm; approx. 7 kg
Installation, together with transceiver, in Shockmount R&S® IN452 model .06
(see below); delivered with high-current cable socket for DC input
EPM (ECCM) Add-Ons
R&S® GP...		 Upgrade of fixed-channel radios to EPM (ECCM)
Separate units for cabled connection to the basic radio unit (transceiver, transmitter or
receiver); different versions are available:
EPM (ECCM) Processor
R&S® GP407H1		 For HAVE QUICK; DC operated from radio; 19" 1 HU
EPM (ECCM) Processor
R&S® GP407S1		 For R&S® SECOS (secure EPM (ECCM) communication system) and for voice only; AC + DC; 19" 1 HU
Data Preprocessor
R&S® GP603P3		 For R&S® SECOS (secure EPM (ECCM) communication system) and for data; DC; W × H × D = 50 mm × 130 mm × 295 mm
Service Kits
R&S® KA400		 The kits include a wide variety of special-to-type test devices for workshop maintenance/service, such as extender and test cables, extender cards, test adapters. They all are packed in a handy portable case with individually shaped foam inserts and user information.
Available types:

R&S® KA403U		 For all R&S® Series400U transmitters, receivers and transceivers

R&S® KA406		 For Control Units R&S® GB406C/H/S…

R&S® KA407		 For EPM (ECCM) Processors R&S® GP407H1/S1 and timing systems of R&S® GT400 family
Accessories
Audio Accessories Indispensable for local operation or test of transmitters and transceivers; flexible coil-type cable and mounted NF7 connector; also suitable for Remote Control Units R&S® GB406C/H/S… (standard models)
Handset
R&S® GA013		 Handle-integrated PTT button; rugged type
Headset
R&S® GA015		 Earphones-microphone combination, with cable-integrated PTT button; standard type
Headset
R&S® GA015L		 Earphones-microphone combination, with cable-integrated PTT button; light version
Headset
R&S® GA012		 Earphones-microphone combination, with cable-integrated PTT button; rugged type
Microphone
R&S® GA016H1		 Dynamic; handheld type with PTT button
Set of Mating Connectors
R&S® XT452UZ		 For all R&S® Series 400U radios (transceivers, transmitters and receivers)
xx = 12: standard set, incl. connectors for R&S® GI413/416/430U
xx = 13: extended set with additional connectors for all slots
The sets include RF connectors and are without AC connectors (as AC power cord issupplied with radio equipment)

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