Tag: Apple Mac

Accurate time keeping on an Apple Mac running macOS Big Sur for FT8, FT4 and WSPR

ChronyControl

I’ve been using Apple computers for many years now and even though I’ve made a couple of previous blog posts about keeping the clock accurate on a Mac, those methods have never really been needed and I posted them as a sort of belt and braces addition to the built in time-keeping. However with macOS […]

UTC clock for macOS

Menu Bar UTC

As radio amateurs, time is important to us and Coordinated Universal Time (UTC), often called Greenwich Mean Time (GMT) is the most important. We log our QSOs in UTC, (ideally) we give net times in UTC and our clocks need to be accurate to the second for data modes such as FT8, FT4, JT65, JT9 […]

Accurate time keeping on an Apple Mac running macOS Mojave

When running data modes such as the very popular FT8, it’s important to keep your computer clock accurate because if it’s more than a couple of seconds out then you won’t be able to decode anyone, they won’t be able to decode you and you won’t make any QSOs.  There are a number of utilities […]

Accurate time keeping on an Apple Mac or Raspberry Pi for WSPR/JT65/JT9/FT8

If you use any of the data modes for QSOs such as JT65, JT9, or FT8 or if you operate using WSPR then you’ll know how important it is that your computer clock is accurate.  Anything more than a couple of seconds out and you won’t decode anything and nobody will decode your signal. On […]

com.apple.bird/session/g

This is one of the very few non amateur radio related items on this site.  I’m posting it because it’s a useful tip and I hope that it will assist fellow Mac users. I noticed about three years ago that a particular cache folder on my iMac was getting larger and larger.  I did some […]