R&S®NM8200 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

750 W to 3 kW output power for analog TV
Frequency range from 170 MHz to 254 MHz

Brief Description

The R&S^®NM8200 family of air-cooled transmitters is designed for a wide range of TV broadcast standards. These include analog TV standards (B/G, D/K, M/N, I), color coding standards (SECAM, PAL, NTSC) and sound coding standards (FM mono, IRT dual-sound/stereo and NICAM).

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

750 W to 3 kW output power for analog TV
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 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 (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^®NM8200 for analog TV
	NM8201	NM8202	NM8203	NM8204
Number of amplifiers	1	2	3	4
RF output power	750 W	1500 W	2250 W	3000 W
Air flow rate	8.5 m³/min	8.5 m³/min	17 m³/min	17 m³/min
Reference frequency	10 MHz, 0.1 V to 5 V (V_pp) or TTL, BNC
TV standards	B, G, D, K, M, N, I
Color transmission	PAL, NTSC, SECAM
Inputs (video)	2 × video
Inputs (audio)	without NICAM: 2 × AF with NICAM: 2 × AF + 1 × AF for third language standard M/N: 1 × AF + 1 × BTSC (BNC)
Sound transmission	IRT dual-sound coding; FM single-sound and NICAM 728 (–13 dB/–20 dB), optional; FM single-sound (–10 dB); BTSC coder input

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

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