R&S®NW7000 VHF Transmitter Family (Rohde & Schwarz International - Products - Broadcasting

Discontinued Product

Specifications



Frequency range	170 MHz to 250 MHz
Power supply	230/400 V ±15%, 50 (60) Hz ±2%
Max. installation altitude	2000 m above sea level (>2000 m on request
Operating temperature range	+1 °C to 45 °C
Outside temperature range	−30 °C to +50 °C
Permissible relative air humidity	95%
Inputs
DVB-T	2 x ASI (in pairs, prepared for hierarchical modulation)
ATSC	2 x SMPTE-310 (BNC, 75 Ω)
Interfaces
RS-232-C	at the front, operation of transmitter by means of graphical user interface (GUI) from PC, sub-D, female, 9-contact
RS-485	for remote control of transmitter, at transmitter top, sub-D, female, 9-contact
RS-232-C	for remote control of transmitter, at transmitter top, sub-D, female, 9-contact (connection of Hayescompatible modem)
Optional	parallel remote-control interface, floating, for messages and commands; SNMP interface and/or TCP/IP Web server
DVB-T / DVB-H	coding and modulation according to EN300744
IFFT mode	2k and 8k
Useful symbol period	224 μs (2k) or 896 μs (8k)
Modulation	QPSK, 16QAM or 64QAM
Guard interval	1/4, 1/8, 1/16 or 1/32 of useful symbol period
Inner code rate	1/2, 2/3, 3/4, 5/6 or 7/8
Hierarchical coding	option on request
ATSC	according to Doc. A53/1995
Modulation	8VSB
Symbol rate	10.76 MHz
Data rate	19.39 Mbit/s
Trellis coding	2/3
Reed-Solomon encoder	207/187/10

R&S^®	NW7080	NW7140	NW7270	NW7280	NW7360	NW7550	NW7720


RF output power*) (DVB-T)	900 W	1.4 kW	2.3 kW	2.8 kW	3.6 kW	5.5 kW	7.2 kW
RF output power*) (ATSC)	1.5 kW	2.2 kW	3.7 kW	4.4 kW	5.8 kW	8.8 kW	11.5 kW
Number of amplifiers	2	3	5	6	8	12	16
Cooling	liquid cooled
Dimensions in mm (W x H x D)	630 x 2167 x 1200					1260 x 2167 x 1200
RF connectors	EIA 1 5/8					EIA 3 1/8
Reference frequency	1 MHz, 5 MHz or 10 MHz, 0.1 V to 5 V (Vpp) or TTL, BNC
Bandwidth	7 MHz and 8 MHz for DVB-T; 6 MHz for ATSC
Reference pulse	1Hz, TTL, BNC