* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions. Eot transmissions have limited range and the chirp you hear may be that of a train that just passes you and which you do not pick up before it arrive. It is not voice - base, but rather sounds like intermittent chirp. These are mounted on rear of train and send data to the locomotive on such things as brake pipe pressure. Finally, another way to be alert of nearby trains is to monitor the frequency used by end of train telemetry devices. But this is not required on all railroads and indeed, many trains pass each other without comment. On some railroads, when two trains pass each other, they will give each other visual inspection and report results to other trains over the radio.
Be advise, though, that track warrants are also given to maintenance of way and signal department trucks and equipment capable of operating over rails. Railroads that operate in dark territory, meaning the line has no block signals, will often use radio transmissions to give crews track warrants, which are permission to occupy certain segments of track. This can yield valuable information because more often than not it involves operating plan, eg dispatcher is going to hold train at a particular point so that it can meet Train B there. Yet another method of determining the location of trains is to intercept conversation between dispatcher and train. Many railroads have talking defect detectors and if you happen to be close to one of those, you can know that a train is nearby when the detector broadcasts information about the train that just passed over it. On CSX, transmission also usually includes the number and owner of the lead locomotive. Typically, this broadcast includes train symbol, location of signal, indication of signal, eg clear, approach, stop, diverging clear, etc., Direction of travel and, if applicable, track on which train is traveling. On CSX and Norfolk Southern, two Class I Railroads with most track in Ohio, this is most often done by hearing crew of approaching train call lineside signal indication. For the most part, scanners are handy in giving you a heads up as to when a train is coming. You will find older models sold under such names as Realistic, Bearcat and Regency. Although radios capable of receiving railroad radio signals are available from a number of manufacturers, most common models used by railfans are sold under Radio Shack and Uniden names. Many railfans would not think of leaving home without their scanner. Whether you are trackside waiting to observe or photograph trains, riding aboard train or in the comfort of your own home, if you want to know what is going on with railroad, it helps to have a radio scanner.
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