The 3200B VHF Oscillator provides low cost, stable, 10 to 500MHz RF (6 bands) for testing receivers and amplifiers, and driving bridges, slotted lines, antennas, and filter networks?just to name a few! Good pulse modulation sensitivity allows standard audio oscillators to be used to provide modulation; a 2.5 V sine wave will provide adequate drive for this type application. Can also serve as a local oscillator for heterodyne detector systems and as a marker source for swept systems. RF is read on an expanded slide-rule type scale. Frequency accuracy is within ?2% after half-hour warm-up. Power level across a 50-ohms external load is greater than 200 mW (10 to 130MHz); greater than 150 mW (130 to 260MHz); greater than 25 mW (260 to 500MHz). Effective RF shielding permits measurements at levels down to 1 ?V.