How does the GB-4000 frequency Instrument output its frequencies analog when they come from a digital DSP chip?
The GB-4000 uses a DAC (Digital to Analog Converter). This type of electronic circuit is used in all modern analog frequency generators. The frequencies are output from a DSP, (Digital Signal Processor) then go through the DAC and then through a low pass or band pass filter and come out converted to analog. These frequencies are phase-locked-looped for perfect accuracy. By this method we have all the harmonic content of the old antique vacuum tube frequency generators along with the digital accuracy. No old antique frequency generator has the frequency accuracy of today’s modern equipment. This method is now the standard in the industry.
Related Questions
- Why do the HD channels & Digital channels seem quiet, compared to the Analog channels (Ch. 99 and below) when using Digital Audio Output (Optical/Coax)?
- How does the GB-4000 frequency Instrument output its frequencies analog when they come from a digital DSP chip?
- Does the GB-4000 output its frequencies digital or analog?
