r&s®na8200 vhf transmitter family for dab( ) and t-55体育

highest energy efficiency and signal quality

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  • 概览

key facts

  • energy efficiency – up to 25 % efficiency at typ. 37 db shoulder distance
  • excellent signal quality – high mer of typ. 33 db

brief description

the transmitters of the r&s®na8200 family transmit very high-quality digital audio broadcasting (dab) signals in vhf band iii. the transmitters' high efficiency combined with a small footprint significantly reduces investment and operating costs.

features

  • maximum signal quality combined with low space and energy requirements
  • continuous coverage
  • custom tailoring

specifications

r&s®na8201
output power (rms) 400 w
number of r&s®vm8350a1 amplifiers 1

key facts

  • energy efficiency – up to 25 % efficiency at typ. 37 db shoulder distance
  • excellent signal quality – high mer of typ. 33 db
  • compact transmitters – 400 w to 2.4 kw transmit power (rms) in a standard 19" rack
  • high safety of investment – prepared for the implementation of new standards

brief description

the transmitters of the r&s®na8200 family transmit very high-quality digital audio broadcasting (dab) signals in vhf band iii. the transmitters' high efficiency combined with a small footprint significantly reduces investment and operating costs. the high availability means reliable broadcasting operation for the customer. the transmitters can be flexibly adapted to special requirements in the transmitter stations, and they feature a convenient operating concept.

features & benefits

  • maximum signal quality combined with low space and energy requirements
    • energy efficiency lowers operating costs
    • top value in signal quality (mer) for high reception security
    • excellent rf output spectrum
    • space-saving transmitter concept
  • continuous coverage
    • all components deliver high reliability
    • standby systems enhance availability
    • seamless switchover of the eti inputs
    • self-monitoring power amplifiers
    • highly sensitive gps receiver with fast synchronization (option)
  • custom tailoring
    • cooling suitable for any location
    • convenient operation and diagnostics either directly on the transmitter or via remote control

specifications

configured as r&s® na8201 na8202 na8203 na8204 na8205 na8206
output power (rms) 400 w 800 w 1200 w 1600 w 2000 w 2400 w
number of r&s®vm8350a1 amplifiers 1 2 3 4 5 6
frequency range 174 mhz to 240 mhz (vhf band iii)
shoulder attenuation at nominal power 35 db, typ. 37 db
rf output eia 1 5/8"
maximum permissible reflection (vswr) 1.3
operating voltage 3-phase 3p n pe, 400 v ac, 47 hz to 63 hz
cooling system air cooling with two internal fans
total air volume 8.5
m3/min		 12.0
m3/min		 15.0
m3/min		 17.0
m3/min		 17.0
m3/min		 17.0
m3/min
dab-specific parameters in line with en300401, en302077-2, en300799
supported standards dab, dab , t-dmb
dab modes i, ii, iii, iv
mer ≥30 db, typ. 33 db
delay compensation (static and dynamic) max. 1 s, step size 61 ns (time stamp level 5)
signal input 2 × eti (ni, g.703/na, g.704), automatic detection;
seamless switchover, 75 ω bnc female
or >10 kω bnc female (high-impedance), switchable
gps antenna input n female (optional)
external reference clock 1 hz (1 pps) ttl, bnc; 10 mhz, 0.1 v to 5 v, bnc
operating temperature range 1 °c to 45 °c
storage temperature range –20 °c to 60 °c
installation altitude at nominal power 2000 m
relative humidity 95 %, non-condensing
dimensions (h × w × d) 2000 mm × 600 mm × 800 mm
(78.7 in × 23.6 in × 31.5 in)
dimensions when surrounding-air
cooling is used (h × w × d)		 2000 mm × 600 mm × 900 mm
78.7 in × 23.6 in × 35.4 in)
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