Scientech technologies supplies caddo 4061 and 4062 high-performance, 2mhz/lomhz function pulse generators. These pulse generators are provided with a 30mhz frequency counter. Standard, am balance, frequency modulation, sweep and pwm are the different types of modulated signals which are provided by the caddo 4062. For selection of functions, frequencies, modulations and frequency counter with a bright, backlit lcd, electric switches are used by both the instruments.