Additional Features: 400/660 MHz single- or dual-channel Pulse Pattern Generator 400 MHz, 3.8 V, 50 Ohm into 50 Ohm (Agilent 81131A) OR 660 MHz, 2.5 V, 50 Ohm into 50 Ohm (Agilent 81132A) Pulse / burst / pattern modes selectable Precision timing model: Segmentabel memory / 64 kbit per channel /220 loop-count / Sequenced prbs capability EXOR channel addition SMA(f) 3.5 mm : Differential Synchronously triggerable Pattern mode from 80 MHz to 660 MHz, including pseudo-random binary sequence The outputs of dual-channel instruments can be added (analog or EXOR, depending on model) User-retrofittable channels for most models Upward compatibility Individual solutions for frequencies up to 50, 80, 165, 330, 400 and 660 MHz 100% form/fit compatibility The Agilent 81130A generates all the standard pulses and digital patterns needed to test current logic technologies (CMOS, TTL, LVDS, ECL, etc.). With the optional second channel on all of the models from 80 MHz to 660 MHz, multi-level and multi-timing signals can be obtained using the internal channel addition feature.