R&S®THV9 VHF Transmitter Family for TV and Digital audio broadcasting

Efficiency redefined

Key facts

  • Superior efficiency on the market thanks to innovative transmitter design and the use of Doherty technology
  • Scalable and flexible system configuration

Brief description

The R&S®THV9 VHF high-power transmitter family makes terrestrial broadcasting of TV and digital audio broadcast signals extremely efficient.

Specifications

Digital TV standards DVB-T, DVB-T2, DVB-H, ISDB-T, ISDB-TB, ATSC, ATSC Mobile DTV, DTMB
DVB-T, DVB-H channel bandwidth 5/6/7/8 MHz

Key facts

  • Superior efficiency on the market thanks to innovative transmitter design and the use of Doherty technology
  • Scalable and flexible system configuration
  • Unique MultiTX system with multiple transmitters in a single rack
  • Highest power density per transmitter rack
  • User-friendly operating terminal and GUI
  • Optimized total cost of ownership (TCO)

The R&S®THV9 contains open source software packages. Copies of the respective licenses are included in the Open Source Acknowledgement, see Downloads/Software area of this web page.

Brief description

The R&S®THV9 VHF high-power transmitter family makes terrestrial broadcasting of TV and digital audio broadcast signals extremely efficient. It features high energy efficiency of up to 50 %, outstanding configuration flexibility and exceptional operating convenience in a very small footprint. For network operators, this means cost reductions over the entire system lifetime.

The liquid-cooled transmitters deliver output power for digital TV and digital audio broadcasting of up to 30 kW and up to 58 kW for analog standards. Rohde & Schwarz also offers the highest power density on the market with as much as 15 kW per rack for COFDM standards.

In Doherty mode, the R&S®THV9 transmitter family attains efficiency values of up to 50 % including the cooling system – for maximum energy and CO2 savings. In Doherty operation, users can save up to 50 % of energy costs compared with conventional transmitters.

The transmitters offer unparalleled flexibility and scalability in an extremely compact design. The family portfolios range from single transmitters with built-in pump unit and bandpass filter to multitransmitter systems and even N+1 configurations in a single rack. The new operating concept is based on an ergonomic operating unit, straightforward, easy-to-use menus and a convenient configuration guide.

Specifications

Digital TV    
Standards   DVB-T, DVB-T2, DVB-H, ISDB-T, ISDB-TB, ATSC, ATSC Mobile DTV, DTMB
Channel bandwidth DVB-T, DVB-H 5/6/7/8 MHz
  DVB-T2 1.7/5/6/7/8 MHz
  ISDB-T, ISDB-TB 6 MHz
  ATSC 6 MHz
  DTMB 6/8 MHz
Inputs DVB-T, DVB-H 2 × ASI (HP/LP), 75 Ω BNC,
2 × RJ-45
  DVB-T2 2 × ASI (HP/LP), 75 Ω BNC,
2 × RJ-45
  ISDB-T, ISDB-TB 2 × BTS, 75 Ω BNC,
2 × RJ-45
  ATSC 2 × SMPTE310M or 2 × ASI, 75 Ω BNC, 2 × RJ-45
  DTMB 2 × ASI (HP/LP), 75 Ω BNC,
2 × RJ-45
Digital audio broadcasting/Mobile TV in the VHF range
Standards   DAB, DAB+, T-DMB
Channel bandwidth   1.5 MHz
Inputs   2 × ETI, 75 Ω BNC/high impedance, 2 × EDI, RJ-45
Analog TV
Standards   B/G, D/K, M 1), N 1), I, I1
Color transmission   PAL, NTSC, SECAM
Sound transmission   IRT dual-sound coding, FM single sound and NICAM728
(−13 dB/−20 dB), FM single sound
(−10 dB)
Inputs   1 × video (75 Ω BNC), 2 × audio (XLR)
General data
Frequency range UHF band IV/V 470 MHz to 862 MHz
  VHF band III 170 MHz to 254 MHz
Supply voltage   400 V/230 V; 4 wires + PE (L1/L2/L3/N/PE) ± 15 %,
208 V; 3 wires + PE (L1/L2/L3/PE) ± 15 %,
220 V; 3 wires + PE (L1/L2/L3/PE) ± 15 %,
240 V; 3 wires + PE (L1/L2/L3/PE) –15 %/+10 %
Max. installation height   2000 m above sea level
(> 2000 m on request)
Operating temperature range   +1 °C to +45 °C
Relative humidity (max.)   95 %, noncondensing
Immunity2) to fast transients and burst in line with IEC 61000-4-4 < 4 kV (AC supply),
< 1 kV (signal inputs)
  to surges in line with IEC 61000-4-5 symmetrical < 2 kV (e.g. L1-L2),
asymmetrical < 4 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
Operation
Display unit with touchscreen and LEDs   local operation and display
Ethernet interface, RJ-45   local, remote, standard web browser
  optional network management interface via SNMP
Parallel remote interface optional floating contacts for messages and commands

1) Only single sound.

2) With built-in AC supply overvoltage protection; more stringent requirements must be satisfied by implementing appropriate measures in the station.

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 for maintaining the required shoulder distance), the transmitter may only be operated with suitable filters at the RF output.

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