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N1891A Digital Communications Measurement System

Product Status: Discontinued | Currently Supported
This product is no longer available

No replacement found for this product.


The N1891A Digital Communications Measurement System has been discontinued. For similar systems please contact one of Keysight’s Satellite Test Channel Partners

For information on other Keysight products and services focused on the Aerospace and Defense industries, please click here: Aerospace / Defense Industry

The following is provided for support purposes only:

The N1891A Digital Communications Measurement System (DCMS) advances satellite-payload measurement capability of its highly successful predecessor, the 85121A Payload Test System, which has been the industry's analog bent-pipe testing standard for over 10 years. With the 85121, Keysight built a strong reputation for supplying satellite manufacturers with fast, accurate, repeatable payload measurements. The N1891A expands that capability to include digital measurements for digital payloads.

The business payoffs for satellite manufacturers include significantly reduced test time and cost, faster time to satellite launch and reduced satellite-mission risk.

N1891A Features Included:

  • Automatic analog-and-digital measurements
  • UHF-to-Ka-band operation
  • Single, two-tone, and multi-tone measurements
  • Four-hour automatic system calibration
  • Flexible system configurations (economy to high performance)