The Wavetek 650 2MHz Variable Phase Synthesizer represents the ultimate in variable phase generator design. It combines superb phase accuracy (0.005 at low frequencies), synthesizer frequency accuracy, high output amplitude capability (up to 50 V p-p) and excellent stability. These features allow it to work in any lab. Since it's completely IEEE-488 programmable, has two channel outputs (expandable to 4 channels) and cascades as many as ten 650's (40 channels), it'll do whatever you want. It generates sine and square waves from 0 .1mHz to 2MHz and ramp and triangle waves from 0.1mHz to 200kHz. Other features are its internal and external triggering, AM, Phase, and FM modulation capabilities, plus it's loaded with high tech capabilities and dependability. So it's more than comparable phase synthesizers. The unique full alpha/numeric LCD display provides insight into set-ups, instructions, etc. The self diagnostics and internal calibration ability eases your preparation. The Cal procedure is stepped through via a "plain English" menu (it's that simple!). Complete calibration can be accomplished in a matter of minutes without the need for a manual or lengthy procedure saving you money! The 650 can also store up to 25 complete instrument setups including every parameter for every channel you have selected.