Digital and RF Signal Source with 1 GHz Range (expandable to 2.6 GHz with add-on module). The Signal Forge 1000 combines the a 1 GHz frequency range and three dedicated outputs to deliver the capabilities a signal source, a sweep generator and a function generator in a single, high-performance system. The SF1000 provides an RF (AC-coupled) output, a Digital output and a Differential output, plus a wide range of waveform modulation features--AM, ASK, BPSK, Chirp, FSK, OOK, ARB--making it ideal for testing clock driven systems such as serial storage devices and integrated circuits as well as RF systems. The SF1000's small size (8.5in x 5.4in x 1.5) make it ideal for space constrained lab benches and field test and calibration applications.