BTC Z22 Manual do Utilizador descarregar pdf (Página 37)

Version 02.00, November 2014

Rohde & Schwarz R&S

BTC Broadcast Test Center 37

Simulation

Arbitrary waveform generator (R&S

BTC-K35 option)

Up to eight arbitrary waveform generators are available for each baseband generator. Their sample rate, frequency and level offset

settings are independent of each other, but the sum of their waveform length is limited to 1 Gsample.

Arbitrary waveform generators

number of waveform generators

up to eight arbitrary waveform generators

operating mode

shared memory concept

Waveform length

with R&S

BTC-B3004 option (memory

extension)

128 sample to 1 Gsample in one-sample

steps, depending on active number of

arbitrary waveform generators and loaded

waveform length

Nonvolatile memory

hard disk

Waveform loading time

10 Msample

5 s (meas.)

Sample resolution

equivalent to D/A converter

16 bit

Sample rate

400 Hz to 200 MHz

Sample frequency error

internal clock

< 5 × 10

14

× sample rate +

reference frequency error

Sample clock source

internal

Bandwidth (RF)

using the maximum sample rate,

rolloff to –0.1 dB

160 MHz (nom.)

using a reduced sample rate,

rolloff to –0.1 dB

(The waveform is automatically

interpolated to the internal sample rate of

200 MHz.)

0.625 × sample rate (nom.)

Level offset

independent for each ARB generator

see “Interferer management”

Frequency offset

independent for each ARB generator

see “Interferer management”

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