The FG503 Function Generator provides high-quality low-distortion sine, square, and triangle waveforms. Six decade frequency multiplier steps, a custom position for user-determined frequency multiplication, a dial calibrated from 1.0 to 30 (uncalibrated from 0.1 to 1.0), and a frequency vernier control working together to select frequencies in overlapping ranges from 1Hz to 3MHz. The output frequency can be swept over a 1000:1 ratio by an external voltage. Requires TM500-Series Power Module (sold separately).