The -hp- Model 3330A/B Automatic Synthesizer provides accurate and stable frequencies from 0.1 Hz to 13,000,999.9 Hz with a resolution of 0.1 Hz. Digital sweeping of frequency is standard on both the 3330A and 3330B. Selection of frequency and frequency sweep is accomplished by a front panel keyboard. With the 3330A, the output amplitude is selected by a 0-13 dBm potentiometer. Maximum output voltage for both the 3330A and 3330B is 1 V rms into 50 ohms. The 3330B output amplitude is selected by the front panel keyboard. Output amplitude capability is + 13.44 dBm to - 86.55 dBm with a resolution of 0.01 dB. Digital sweeping of amplitude is also available on the 3330B.