As a frequency device yes the Hubble constant can be translated into Hz. Having fun with harmonics of frequencies : cosmic rays attain 10^21. Could one find support that 10^-21 hz is more likely the beat of the Universe. And that H may only represent when the weak force, atoms (e.i. light) was formed? Leaving a horizon shell which expands or contracts based on black hole intake? (No response nec. Just trying to conceptualize both of your math wizardry.)