We specialize in the design, manufacture, and sale of time & frequency products.  These products are used in a variety of industries and applications - computer networks, satellite earth stations, power utilities, test ranges, broadcast and telecommunications systems and more.  We provide the most precise, stable, and reliable, GPS-derived time and frequency equipment in the world.  If you need spectrally-pure frequency signals in your communications system, or to accurately synchronize your IT network, or anything in-between - we have the expertise and the products for you.

  Frequency Standards
  Distribution Amplifiers
  Time Servers
  PTP/IEEE-1588 Grandmasters
  Telecom Primary Reference Sources
  More Products

Heartbleed Security Bug Info
EndRun products remain secure.  The OpenSSL version used in our products is not affected by this bug.
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