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):

R&S®TMV9 VHF Transmitter Family for TV and digital audio broadcasting

Overview

Key Facts

330 W to 2 kW output power for DVB-T, DVB‑T2, ISDB-T/ISDB-T_B 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-T_B, 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-T_B 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

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 immunity¹⁾	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 (V_pp) 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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