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Re: Doppler based RF signal activation?
Author: Dr Zarkoff
Date: 10-01-2016 - 18:31

The US equivalent is a predictor track circuit, which measures the change in the inductance of the circuit as the leading axle of a train approaches a crossing to calculate train speed and activate the crossing devices accordingly.

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Subject Written By Date/Time (PST)
  San Rafael, Novato SMART rail warning devices malfunctioning The Odd Duck 09-29-2016 - 13:55
  Re: San Rafael, Novato SMART rail warning devices malfunctioning clipper841 09-29-2016 - 14:36
  Re: San Rafael, Novato SMART rail warning devices malfunctioning SP5103 09-29-2016 - 17:01
  Re: San Rafael, Novato SMART rail warning devices malfunctioning Flakes 09-29-2016 - 17:39
  Re: San Rafael, Novato SMART rail warning devices malfunctioning synonymouse 09-29-2016 - 19:45
  Re: San Rafael, Novato SMART rail warning devices malfunctioning mook 09-29-2016 - 21:18
  Re: San Rafael, Novato SMART rail warning devices malfunctioning Rail 09-29-2016 - 23:42
  Re: San Rafael, Novato SMART rail warning devices malfunctioning The Odd Duck 09-30-2016 - 00:07
  Re: San Rafael, Novato SMART rail warning devices malfunctioning Dr Zarkoff 09-30-2016 - 01:06
  Re: San Rafael, Novato SMART rail warning devices malfunctioning Rasputin 09-30-2016 - 11:31
  Re: San Rafael, Novato SMART BART Nudge 09-30-2016 - 12:36
  Re: San Rafael, Novato SMART BART Espee99 09-30-2016 - 16:18
  Re: San Rafael, Novato SMART BART Dr Zarkoff 09-30-2016 - 20:54
  Re: SMART; BART; PTC Margaret (SP fan) 09-30-2016 - 20:21
  Re: SMART; BART; PTC Carol L Voss 09-30-2016 - 21:50
  Re: SMART; BART; PTC -- Thanks, Carol! :) Margaret (SP fan) 09-30-2016 - 23:46
  Re: Doppler based RF signal activation? BOB2 10-01-2016 - 09:45
  Re: Doppler based RF signal activation? SP5103 10-01-2016 - 14:27
  Re: Doppler based RF signal activation? mook 10-01-2016 - 19:09
  Re: Doppler based RF signal activation? Dr Zarkoff 10-01-2016 - 21:59
  Re: Doppler based RF signal activation? mook 10-01-2016 - 23:29
  Re: Doppler based RF signal activation? Dr Zarkoff 10-01-2016 - 18:31
  Re: Doppler based RF signal activation? OldPoleBurner 10-02-2016 - 21:29
  Re: Doppler based RF signal activation? Dr Zarkoff 10-02-2016 - 23:05
  Re: Doppler based RF signal activation? OldPoleBurner 10-05-2016 - 20:24
  Re: Doppler based RF signal activation? Dr Zarkoff 10-06-2016 - 12:21


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