I was going to ask what a milli-gigahertz was (200 mGHz)?
The rules for capitalization basically honors people. Thus V for Volt instead of v. And a small l for liters and not L.
Some terms changed as time went on such as c.p.s for cycles per second to Hertz and mhos to Siemens. I have a radio from the 50's that's marked in c.p.s. and I had Blaupunkt tube radio that was marked in increasing Wavelength, not frequency.
The rules for capitalization basically honors people. Thus V for Volt instead of v. And a small l for liters and not L.
Some terms changed as time went on such as c.p.s for cycles per second to Hertz and mhos to Siemens. I have a radio from the 50's that's marked in c.p.s. and I had Blaupunkt tube radio that was marked in increasing Wavelength, not frequency.