Anritsu
MG3670B + MG0302A + MG0303B + MG0307A + MG0312B

The MG 3670 B is a Digital Modulation Signal Generator equipped with a high-performance quadrature modulator. It provides the signals needed to develop, test and evaluate digital mobile communications equipment and related devices with expansion units.

The MG 3670 B operates from 300 kHz to 2.25 GHz. The instrument provides a stable and precise output as well as excellent spectrum purity up to +13 dBm, even with modulation. In addition to testing receiver sensitivity and excess input, it can be used for testing IF stage performance and for evaluating device quality. A CMOS-level mode is provided for I/Q signal input. The input frequency band covers the CDMA spread spectrum band, expanding the range of applications.

Features:

• Compatible with communication system measurement signals for Japan, North America and Europe
  
• High modulation accuracy (1.8% rms vector error)
  
• Outputs modulation signals suited to each communication system
  
• Internal pattern generator with data-editing and scrambling functions
  
• Outputs IS-95 channel multiplex signal

MG 3670 B can be used in combination with up to eight modulation units and a burst function unit simultaneously.

The offered unit is equipped with:

• MG 0302A: GMSK function unit
  
• MG 0303B: Burst function unit
  uses the frame and slot configuration stipulated by various communication systems and has a modulation pattern generator function and a function for ramp control of carrier burst signals. It can also handle data editing and scrambling.
  
• MG 307A: pi/4 DQPSK modulation uunit
  
• MG 0312B: QPSK-OQPSK modulation unit

Please find a corresponding data sheet here.
Please find an enlarged image here.