The Wavetek 182A Function Generator cover a wide 0.004 Hz to 4 MHz frequency span in seven overlapping ranges. The unit puts out sine, triangle, square, TTL, pulse and DC and has both trigger and gate modes. High level output is a full 20 V peak-to-peak from a 50-ohm termination with maximum peak current of 100 mA. You can externally modulate or sweep the generator frequency in each of its 1000:1 ranges with DC or AC signals.