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Fading Simulator MF6900A

Fading Simulator

This product has been discontinued


  • High reproducibility and maintainability due to full digital baseband processing
  • One unit supports LTE 4x2 MIMO or 2x2 MIMO 2-cell testing
  • Supports LTE 2x2 MIMO to W-CDMA inter-system handover tests
  • Easy fading settings with MD8430A/MD8480C test scenarios
  • Extendable hardware platform with up to four input and four output ports


The MF6900A Fading Simulator connects to the MD8430A Signalling Tester via a dedicated digital interface to easily simulate an LTE base station and run fading simulation tests required by 3GPP LTE 2x2 MIMO and 4x2 MIMO tests.

It supports all fading propagation tests defined by 3GPP TS36.521 and uses full digital baseband processing to assure fading processing with high reproducibility at the same settings, while greatly simplifying difficult MIMO power control and achieving high accuracy.

One MF6900A unit supports both LTE 2x2 MIMO 2-cell as well as 4x2 MIMO tests and combination with the MD8430A Signalling Tester with LTE support makes it easy to configure an LTE 2x2 MIMO system for handover tests. In addition, LTE/W-CDMA inter-system handover tests are supported by connection with the MD8480C Signalling Tester with W-CDMA option.


  Interface   Digital I/F (LVDS)
  2x2 MIMO, 2x1 MISO, 1x2 SIMO (Enabled with MX690010A and when MD8430A connected)
  4x2 MIMO, 4x1 MISO (Enabled with MF6900A-001, MX690010A, MX690010A-001 and when
  MD8430A connected)
  Moving, Birth-Death, Tx/TRx Diversity (Enabled with MX690020A and when MD8430A connected)
  Number of Path   12 paths/channel
  Relative Path
  0 to 600 µs, 0.1 ns resolution, 0.1 ns setting accuracy (Based on delay 0)
  Relative Path Gain   –50 to 0 dB, 0.1 dB resolution, 0.05 dB setting accuracy
  0 or 0.1 Hz to 20 kHz, 0.01 Hz resolution
  Fading Type   Constant Phase, Pure Doppler, Rayleigh, Rice


Fading Profile

  SISO   Case1, Case2, Case3, Case4, Case5, Case6, Case8, VA3, VA30, VA120, PA3, PB3
  [3GPP TS25.101 V8.9.0 (2009-12), TS34.121-1 V8.9.0 (2009-12)]
  EPA, EVA, ETU [3GPP TS36.101 V8.8.0 (2009-12)]
  2x2 MIMO / 1x2 SIMO   EPA, EVA, ETU [3GPP TS36.101 V8.8.0 (2009-12)]
  4x2 MIMO / 4x1 MISO   EPA, EVA, ETU [3GPP TS36.101 V8.8.0 (2009-12)]
  2x2 HST / 1x2 HST /
  1x1 HST
  High Speed Train scenario
  [3GPP TS25.101 V8.9.0 (2009-12), TS34.121 V8.9.0 (2009-12), TS36.101 V8.8.0 (2009-12)]
  1x2 CQI / 1x1 CQI   Conditions for CQI tests [3GPP TS36.101 V8.8.0 (2009-12)]
  Moving   Moving propagation conditions [3GPP TS25.101 V8.8.0 (2009-12)]
  Birth-Death   Birth-Death propagation conditions [3GPP TS25.101 V8.8.0 (2009-12)]
  Tx/TRx Diversity   Case1, Case2, Case3, Case4, Case5, Case6, Case8, VA3, VA30, VA120, PA3, PB3
  [3GPP TS25.101 V8.9.0 (2009-12), TS34.121-1 V8.9.0 (2009-12)]

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