The counter can be used to count over a wide frequency range of 10Hz to 100MHz. 1Hz resolution upto 100KHz makes it an excellent general purpose counter. Model 4049 offers 5 different power supplies comprising of just about all the DC supplies required on a test bench. The variable supply allows the user to set the voltage and current according to his requirements. The Function Generator serves as a clock source for digital circuits and signal source in general. Frequencies upto 100Hz can be very accurately set to within 0.1Hz. The RF Generator can be used for testing the frequency response of amplifiers and bandwidth measurement of various types of filters. It is useful in testing communication equipment for sensitivity and modulation parameters. Typical areas include testing and repairs of AM/FM radios, transreceivers, sound sections of TV / Video etc.