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But weren't old remotes all IR?
by thfuran 2y ago
But weren't old remotes all IR?
- cbracken 2y agoSome very old remotes used what effectively amounted to high frequency tuning forks. Example: https://www.theverge.com/23810061/zenith-space-command-remote-control-button-of-the-month https://www.theverge.com/23810061/zenith-space-command-remot...
- ssl-3 2y agoNo, not all were IR. But all of them made by "LG" and featuring a single-chip design are either IR or RF.
- alexdbird 2y agoThose will still have a ceramic resonator in them, as they’re cheaper than a quartz crystal. Hard to imagine them being audible, but not impossible.