T 327XD-192 Transmitter Brochure - TRANSRADIO

TRANSRADIO's digital FM SystemsT327XD-192

VHF/FM TRANSMITTER FAMILYT327XD-192HIGHLIGHTS OF THE VHF/FM TRANSMITTER T327XD-192Secure your investmentand upgrade your T327Xwith a digital exciterTransmitters in the T327Xfamily from TRANSRADIO canbe upgraded with the digitalexciter. Ask our sales departmentfor further information.T3271D-192250 WT3272D-192500 WT3273D-1921000 WT3274D-1921250 WSynthesizerMany of today’s broadcasters demanddigital audio distribution, becausemany of their audio systems and devicesare digitally based, and conversion toanalog domains results in unnecessaryexpense and degration in signal quality.The advantages of digital audiodistribution include transparent audioquality, noise immunity and the abilityto diversely route the signal througha multi-node network.The well-established VHF/FM TransmitterFamily T327XD-192 is nowavailable with a new digital exciter fromTRANSRADIO, which offers outstandingaudio and RF performance, togetherwith future-proof functions such assupport for SFN’s (Single FrequencyNetworks) and Audio Network Protocols.The choice of multiple program inputs,which are simultaneously available,gives the broadcaster excellent interfaceflexibility:❙ Digital AES❙ Analogue MPX❙ Analogue L/R❙ IP Audio network (Ethernet-ETH)Eth(Audio)L inR inL outR outSCA/MPX/DARC100AESSignal Processor24 bitA/D+D/AOption16 bitA/D OptionBlock Diagram of the digital Exciter UpgradeUSB CANControlInterfaceDSPStereoencodingFilterPre-AmplifierDeviationlimiterSummingUnitAES/EBU InterfaceASRCMPXd+ (32bit)24 bitA/D+D/AOption16 bitD/A OptionRS 232(RDS-, SCA-Data)RDSSCA/MPX 80MPX 80PilotMPX 100AEST3270D-192100 WSynthesizerOutputMonitoringFPGADeviation ScalingD/A (16 bit)MPXd+ (32bit)Digital Up-SamplingFilterMixerDDS (32 bit)RF (25mW)TCXO10 MHzUltralowPhasenoiseVCXOCANExternal10 MHzfrom GPSSignal ProcessorHighlights of the VHF/FM TransmitterT327XD-192❙ Simple and intuitive menu control via an integralgraphical display❙ Service friendly design with plug-in Eurocard modules❙ 19" slide-in rack-mount technology❙ All important functions and status information of thetransmitter are grouped onto the graphical display❙ Supports all common main-reserve topologies❙ Direct Digital Synthesis (DDS)❙ Integrated stereo encoder with deviation limiter❙ Proven MOSFET technology used in RF output amplifiers❙ Excellent reliability due to exceptionally low junctiontemperatures of < 90° C at T (ambient) = 25° C❙ Excellent audio performance specifi cation (unweightedandweighted S/N ratio, stereo cross-talk, frequency responseand non-linear distortion)❙ Protected against overvoltage, fan failure, overtemperatureand output mismatch❙ RF output power continuously adjustable in 1 W stepsOverview of the TRANSRADIO FM SFN Network Solution (example) TRANSRADIO FM Single Frequency NetworksSFN networks enable the broadcaster to deploy several FMtransmittersoperating on a common frequency in the samegeographical area. A typical example could be the distribution ofa program along a highway or motorway, and utilizing the towerinfrastructure of the GSM network or other broadcast sites.Broadcasters and network operators generally prefer thefreedom to design and operate their SFN networks to incorporatetransmitters from several vendors. Therefore the SFN solutionof TRANSRADIO is based on the industry-standard AES3 audiotransmission protocol for distributing the synthesized MPX signal.We call this format MPXd+.The SFN distribution network containsone or more „Master“ transmitter station and several „Slaves“.The Master station requires a digital stereo encoder fromTRANSRADIO and the Slave stations consist of transmitters inthe family T327XD-192.

DATASHEET T327XD-192TRANSRADIO VHF/FM TRANSMITTER FAMILIYT327XD-192 transmitter familyType T3270D-192 T3271D-192 T3272D-192 T3273D-192 T3274D-192Output Power 5 ... 100W 25 ... 250W 50 ... 500W 100 ... 1000W 125 ... 1250WPower Supply 1N/PE 85 ... 276V AC 1N/PE 240V AC +10% –15% for rated PoutDimensions 19´´ 3HE 19´´ 6HE 19´´ 9HERF Connector N 7/16Generic specificationOutput power fold-back commences at VSWR > 1,5Frequency range87.5 to 108 MHz in 10 kHz stepsModulation systemF3EOperational modesStereo, Mono L , Mono (L+R)/2, MPXDeviation limiter+–75 kHz, +–15 kHz, ITU.R BS412Ambient temperature range–10°C to +50°CRemote ControlRS232, Bitbus, Ethernet (SNMP, HTTP) or parallel interfaceNumber of presets (program name, set power, 6AF-level, modulation type, deviation limiter, frequency)Inputs❙ AF Analog (40 kHz deviation)❙ AF Digital (40 kHz deviation)❙ AF MPX (up to 100 kHz, 75 kHz deviation)❙ RDS Input❙ SCA Inputs (two pcs., one up to 100 kHz)PerformanceSignal to noise ratio (stereo / mono)+6 dBu, –10 / +8 dB balanced, > 6 k or 600 OhmAES3, –9 dBFS, –10 / +9 dB, 110 Ohm (32 to 192 kS/s,with sample rate conversion)–10 or +11.46 dBu, > 6 k or 75 Ohm–23 … –9.5 dBu, deviation 2 … 4 kHz, > 6 k or 75 Ohm–23 … –9.5 dBu, deviation 2 … 4 kHz, > 6 k or 75 Ohm≥ 81 / 86 dB (CCIR unweighted)≥ 76 / 85 dB (CCIR weighted)Non linear distortion ≤ 0.02%Stereo crosstalk attenuation≥ 60 dBSuppression of RF harmonics≥ 80 dBSuppression of reverse intermodulation≥ 15 dB relative to reverse input powerNoise power relative to carrier ( > 2 MHz offset)≤ –150 dBc/HzOutput frequency stability over 3 month period≤ 50 HzExciters key features❙ Scalable and future proof using Blackfin ® DSP and Xilinx ® FPGA digital signal processing power❙ Direct digital RF synthesis with PLL controlled VCXO, PLL lockable to external 10 MHz (GPS) or Wordclock❙ SFN ready, e.g. with MPXd+ digital composite signal feedTRANSRADIOSenderSysteme Berlin AGMertensstraße 6313587 BerlinGermanyPhone: +49 30 33978-0Fax: +49 30 33978-599E-mail: info@tsb-ag.deInternet: http://www.transradio.dedesign: HUSS-MEDIEN GmbHphotos: Transradio SenderSysteme AG, Wolfgang Korall, Kluwe-Yorck4