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A comment on Wi-Fi over Coax. Parent comment
From the SelTrac wikipedia page:
"in newer versions of SelTrac, the control signal is transmitted inside the running rails at radio frequency using IEEE 802.11 (WiFi) access points. "
https://en.wikipedia.org/wiki/SelTrac#Communication
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From the SelTrac wikipedia page:
"in newer versions of SelTrac, the control signal is transmitted inside the running rails at radio frequency using IEEE 802.11 (WiFi) access points. "
https://en.wikipedia.org/wiki/SelTrac#Communication