PM 5191 is a cost-effective multifunctional combination of programmable frequency synthesizer and function generator. The microprocessor control enables simple and rapid operation. The actual set up of the generator is automatically stored in a non volatile register, after power off and on again these parameters can then be used for a new instrument setting. PM 5191 frequency range covers 10 decades, from 0,1 mHz to 2 MHz. And to make working with this high precision instrument as simple as possible 5 different wave forms are directly selectable. That includes stadard functions like sine, square wave, sawtooth and ramps. High precision and stability are essential factors in this instrument. With a crystal oscillator that serves as a reference standard for all generated frequencies, a high standard of accuracy is achieved. Together with outstanding long-term stability, ensuring that today's signals can always be reproduced precisely. Frequency resolution is 8 digits, so that full advantage can be taken of the instruments high precision, for example in the identification and measurement of phenomena occuring at precisely defined frequencies. Full IEEE/IEC bus compatibility adds an important extra dimension to PM 5191 versatility. All functions are remotely selectable, and all settings and status data can be transmitted to a remote controller and recalled whenever required. Completing its impressive specification, PM 5191 combines powerful user features with operation that could not be simpler. The front panel is divided into clear, separate keypad areas, and two LED displays show together wirh the key LEDs frequency, output level, status and the modulation function.