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Colby Instruments Programmable Delay Line PDL-100A Series instruments offer wideband electrical signal delay with industry leading resolution and precision programmable control in one easy to setup and use instrument. All PDL-100A Series instruments are completely passive and are DC coupled with signal bandwidth up to 18 GHz. Programmable delay lines (or phase shifters) are suitable for both analog and digital waveform applications. The PDL-100A Series consists of several models at different total delay lengths.

Model PDL-100A-625ps offers Programmable Delay range from 0 to 625 picoseconds (0.18 degree resolution per 1 GHz). The PDL-100A utilizes the patented electromechanical trombone and offers delay range from 0 to 625 ps maximum delay with step size resolution to 0.50 picoseconds. Instrument control is via GPIB(IEEE488.2), Ethernet LAN, and RS-232 protocol interfaces are standard.

Model PDL-100A-1.25NS and up thru PDL-100A-100.0NS offers extendable delay range up to a customer specified maximum total delay of 100.0 ns. High frequency RF microwave relays and low-loss semi-rigid coaxial cable are used to extend total instrument delay range. Typical instrument lengths are 5ns, 10ns, 20ns, and 100ns units.