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■ With the waveform combine function, a single MG3700A outputs a signal that is the addition (such
as modulation signal + AWGN) of the wanted signal and interfering signal:
The MG3700A has ARB memory that consists of two memory areas, each allowing one waveform pattern to be set. The addition of
the signals from the two memories, as well as the signal for either one, can be output.
For example, if a wanted signal (W-CDMA, CDMA2000) waveform pattern is selected for one memory and an interfering signal
(AWGN) waveform pattern for the other, a signal that is the addition of the wanted signal and interfering signal (AWGN) shown in the
upper figures below can be output with a single MG3700A.
Also, if a modulation signal is selected as the interfering signal, the addition of the wanted signal and interfering signal (modulation
signal) shown in the lower figures below can also be output with a single MG3700A.
Furthermore, the accuracy of the level ratio is superior since the S/N adjustment and calculation are performed by digital processing.
AWGN waveform pattern
Standard
Wanted signal + AWGN screen
Wanted signal + interfering signal screen
Output waveform screen of wanted signal + AWGN
Output waveform screen of wanted signal + interfering signal
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