The direct method works well for a wide range of frequencies, from Hz to tens of MHz. For
very high frequencies, a prescaller can be enabled. This method has a best-case
resolution of 1 Hz, which could be increased by extending the measurement time, which
already needs to be long, usually 1 second or more for low frequencies.
very high frequencies, a prescaller can be enabled. This method has a resolution of 1 Hz. It could be increased by extending the measurement time, usually 1 second.
The indirect method has a sub-Hz resolution and is much faster than the direct method for
low frequencies. It can be used for signals up to tens of kHz, while the direct method
