R&S®NW8200 Family of VHF Transmitters

Air-cooled transmitters for analog and digital TV

This is a discontinued product
Please note the following successor product(s):
  • Overview

Key Facts

  • 330 W to 2 kW output power for DVB-T, DVB‑T2, ISDB-T/ISDB-TB and DTMB, as well as for DVB-H and MediaFLO™
  • 500 W to 2 kW output power for ATSC and ATSC Mobile DTV
  • Frequency range from 170 MHz to 254 MHz

Brief Description

The R&S®NW8200 family of air-cooled transmitters is designed for a wide range of TV broadcast standards. These include digital TV standards (DVB-T, DVB-T2, ISDB‑T/ISDB-TB, ATSC and DTMB) and mobile TV standards (DVB-H, MediaFLO™, ATSC Mobile DTV).

Features

  • R&S®SX800 multistandard exciter for digital or analog signal processing
  • Air-cooled broadband R&S®VM8350A1 power amplifier

Specifications

Frequency range 170 MHz to 254 MHz
Power supply 3 × 400 V AC ± 15 %, three-phase operation; 47 Hz to 63 Hz

Key Facts

  • 330 W to 2 kW output power for DVB-T, DVB‑T2, ISDB-T/ISDB-TB and DTMB, as well as for DVB-H and MediaFLO™
  • 500 W to 2 kW output power for ATSC and ATSC Mobile DTV
  • Frequency range from 170 MHz to 254 MHz

Brief Description

The R&S®NW8200 family of air-cooled transmitters is designed for a wide range of TV broadcast standards. These include digital TV standards (DVB-T, DVB-T2, ISDB‑T/ISDB-TB, ATSC and DTMB) and mobile TV standards (DVB-H, MediaFLO™, ATSC Mobile DTV). The use of VMOS transistor based amplifiers provides high output power in a compact format.

Features & Benefits

  • R&S®SX800 multistandard exciter for digital or analog signal processing
    • Exciter can be converted from analog to digital standards at any time
    • Various redundancy concepts
    • Modular design with plug-ins simplifies servicing
    • MIP decoder for automatic delay compensation in singlefrequency networks
    • Digital signal processing for maximum stability and easy precorrection
    • Easy software upgrade for DVB-H
  • Air-cooled broadband R&S®VM8350A1 power amplifier
    • Suitable for analog and digital signals without any adjustments
    • With innovative amplifier controller, identical for all sound and TV transmitters in the R&S®Nx8000 family
    • Output power control results in long transistor life
    • Self-monitioring and self-protecting amplifier modules
    • MOSFET technology based
    • Easy replacement of amplifier modules during operation (hot swapping)
  • Innovative R&S®NetCCU®800 transmitter control unit
    • Straightforward display of current transmitter status on color screen
    • Remote transmitter monitoring and control via SNMP and HTTP interface
    • Remote and local access to all parameters relevant for diagnostics
    • Detailed diagnostic capabilities through use of CAN bus
    • Takes up only two height units
  • Transmitter rack with integrated cooling
    • 19" rack (31.5 inches deep) for all power classes
    • Up to six amplifier modules in one rack
    • Houses two built-in fans in active standby
    • Various air ducting configurations
    • Efficient cooling reduces cooling system's power consumption and noise levels

Specifications

Specifications common to the R&S®NM8200 and R&S®NW8200
Frequency range   170 MHz to 254 MHz
Power supply   3 × 400 V AC ± 15 %, three-phase operation;
47 Hz to 63 Hz
Maximum installation altitude   2000 m above sea level (over 2000 m on request)
Operating temperature range   +1 °C to +45 °C
Permissible relative humidity   95 %, without condensation
Dimensions W × H × D 600 mm × 2000 mm × 800 mm
(23.6 in × 78.7 in × 31.5 in)
RF connector   EIA 1 5/8"
Electromagnetic immunity 1) to fast transients and bursts, in line with IEC 61000-4-4 < 2 kV (power feed)
< 1 kV (signal inputs)
  to surges, in line with IEC 61000-4-5 symmetrical < 1 kV (e.g. L1-L2)
unsymmetrical < 2 kV (e.g. L1-N)
Synchronization
Reference frequency   10 MHz, 0.1 V to 5 V (Vpp) or TTL, BNC
Reference pulse   1 Hz, TTL, BNC
Local and remote control
Local control color display and keys on transmitter front side via graphical user interface (GUI)
  RJ-45 via PC using standard web browser
Remote control RJ-45 IEC 864-2 via Ethernet, standard
  RJ-45 network management interface (web server and/or SNMP agent), optional
  parallel remote control interface floating contacts for messages and commands, optional
  bit bus bus interface in line with IEC 864-2, optional

1) With built-in line-side overvoltage protection; more stringent requirements are to be covered by additonal on-site measures.

R&S®NW8200 for DVB-T/DVB-H (in line with EN 300744/EN 302304)
  NW8201 NW8202 NW8203 NW8204 NW8205 NW8206
Number of amplifiers 1 2 3 4 5 6
RF output power 330 W 660 W 1000 W 1300 W 1650 W 2000 W
Air flow rate 8 m3/min 12 m3/min 15 m3/min 17 m3/min 17 m3/min 17 m3/min
Inputs 4 × ASI
Coding and modulation in line with EN 300744, optionally EN 302304
Modulation QPSK, 16QAM, 64QAM
Guard interval 1/4, 1/8, 1/16 or 1/32 of useful symbol duration
IFFT mode 2k or 8k; 4k (optional)
Inner code rate 1/2, 2/3, 3/4, 5/6 or 7/8
Useful symbol duration 224 μs (2k) or 896 μs (8k); 448 μs (4k) optional
R&S®NW8200 for DVB-T2 (in line with EN 302755 V.1.1.1)
  NW8201 NW8202 NW8203 NW8204 NW8205 NW8206
Number of amplifiers 1 2 3 4 5 6
RF output power 330 W 660 W 1000 W 1300 W 1650 W 2000 W
Air flow rate 8 m3/min 12 m3/min 15 m3/min 17 m3/min 17 m3/min 17 m3/min
Inputs 2 × ASI or T2-MI, BNC, 75 Ω and 2 × GbE, RJ-45 (optional)
Coding and modulation in line with EN 302755 V.1.1.1, for SFN in line with TS 102773 (T2-MI)
Channel parameters  
Bandwidth 1.7 MHz, 5 MHz, 6 MHz, 7 MHz, 8 MHz
IFFT mode 1k, 2k, 4k, 8k, 16k and 32k COFDM
Guard interval 1/4, 19/128, 1/8, 19/256, 1/16, 1/32, 1/128
L1 parameters  
Mode single PLP, multiple PLP
Modulation BPSK, QPSK, 16QAM, 64QAM
PLP configuration  
Modulation QPSK, 16QAM, 64QAM, 256QAM
Inner code rate 1/2, 3/5, 2/3, 3/4, 4/5, 5/6
R&S®NW8200 for ATSC (in line with Doc. 53/1995)
  NW8201 NW8202 NW8203 NW8204
Number of amplifiers 1 2 3 4
RF output power 500 W 1000 W 1500 W 2000 W
Air flow rate 8 m3/min 12 m3/min 15 m3/min 17 m3/min
Inputs 2 × SMPTE and 2 × ASI
Modulation 8VSB
Symbol rate 10.76 MHz
Data rate 19.39 Mbit/s
Trellis coding 2/3
Reed-Solomon encoder 207/187/10

To comply with the applicable standards and limit values for the suppression of out-of-band emissions (and in the case of digital standards, also formaintainingthe required shoulder distance), the transmitter may only be operated with suitable filters at the RF output.

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This declaration of consent may be withdrawn at any time by sending an email with the subject "Unsubscribe" to news@rohde-schwarz.com. Additionally, a link to unsubscribe from future email advertisements is contained in each email sent. Further details on the use of personal data and the withdrawal procedure are set out in the Statement of Privacy.

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