
High-precision programmable delay line instruments
Colby Instruments manufacture the world’s finest precision programmable Delay Line Instruments designed to handle a high frequency/RF electronic signal, ranging from DC up to 18 GHz, and adjust the overall distance that the signal traverses. The industry leader offering accuracy, precision with excellent repeatability.
What’s inside a Colby Instrument?
Our patented electromechanical trombone with precision cut semi-rigid coaxial cable and aerospace grade microwave relays. Colby’s programmable delay line instruments are designed to provide users with variable-length signal paths for high frequency electronic signals.
Newest Innovation in XT Series
The capabilities to doppler shift and/or oscillate between two end points at variable rates of speed.
Explore Colby Products
When precision is essential, leaders of industry and research trust Colby.
































