ATCS stands for Advanced Train Control System. It is used by the railroads to control signals and switches in CTC territory. Note some areas equipped with CTC use wires or Satellite links to transmit the information and these cannot be monitored. A railfan named Gary Hahn with technical knowledge created a program using a modified radio to receive these signals and translate them into a display similar to what a real Dispatcher sees. There are two ways to use this program, you can buy a modified radio and connect it to a Laptop, Desktop, or Tablet computer running Windows( It must be able to run Windows) and monitor the railroad within the effective range of your radio, this is called "Field Monitoring". Alternatively you can connect to the Internet and connect to servers which aggregate multiple monitoring radios and provide coverage over larger areas. Not all areas which use ATCS are covered by servers, so these areas can only be field monitored. Fortunately except for a few small sections of track that are wired or for which there are no monitors, the majority of the FEC is available on a single server giving a great overview of what is moving on the railroad. Note that ATCS does not tell you anything about the train number, just that there is a train in this location and the Dispatcher has cleared the signals for the train to move further(or not). Also each section on the Display can represent a section of track as short as 2 miles or as long as 20 miles, only local knowledge will help there. To use ATCS Monitor you MUST join the ATCS Mon yahoogroup.
Wiki is here
http://atcswiki.greatlakesnetworking.net/bin/view" onclick="window.open(this.href);return false;
YouTube video showing someone using ATCS Mon is here(screen visible at about 1:00 mark)
https://www.youtube.com/watch?v=L0QDINlcMrA" onclick="window.open(this.href);return false;
ATCS Mon Yahoogroup Homepage
https://groups.yahoo.com/neo/groups/ATC ... s/messages" onclick="window.open(this.href);return false;
If you should consider Field Monitoring I would recommend buying a radio from one of the members who is a Radio Tech as a small mistake can render a radio as junk. Their expertise is worth the extra cost. The ATCS decoding software needed for either Field Monitoring or monitoring via Internet accessed servers is free of charge once you join the ATCSMonitor group. Note it sometimes takes a few days to get approved to join if the List Owner is away on business.
John Beaulieu
long time ATCS Monitor user.