Design And Function - R&S N 8000 Series System Manual

1

Design and Function

The new air-cooled R&S NV8300 transmitter family is designed for transmitting digital TV
signals in the IV and V frequency bands (UHF). Digital standards DVB-T/-H, ATSC, DTMB,
ISDB-T and MediaFLO can be transmitted.
LDMOS transistor-based amplifiers ensure high output power while requiring only minimum
space. For ATSC, output power of 500 W to 1.8 kW is available.
Both the power class of the transmitter and its type designation depend on the number of
built-in amplifiers.
Transmitter type
R&S NV8301
R&S NV8302
R&S NV8303
R&S NV8304
a) The specified output power cannot be achieved on every channel. Only n x 450 W of ATSC power is possible
up to 486 MHz.
b) The output power is limited by the maximum power-handling capacity of the harmonics filter.
This chapter describes the transmitter's design and the functions of its components.
2098.0188.72
Chapter 2
Number of amplifiers
(R&S VH8300A1)
1
2
3
4
- 2.1 -
Design and Characteristics
Power
MER  34 dB MER  33 dB
430 W
860 W
1290 W
1720 W 1800 W
a)
500 W
1000 W
1500 W
b)
E-1