AAR 12 CSX Monon Subdivision RB Dispatcher Jacksonville

AAR 50 NS Lafayette Distric Dispatch / Road Detectors MP 225.5 (Clymers),  236.7 (Delphi),  250.3 (East Yard), 260.7 (Shadeland)

AAR 84 CSX Road Defect Detectors MP 92.8 (Between Reynolds and Monon), 113.3 (Battleground - weak), 130.6 (South Raub - weak)

AAR 22/39 NS Frankfort Branch/ Frankfort District Road/Dispatch - Defect Detector 242.5 (Mulberry - occasional)

Note that both the CSX (former Monon) and NS (former Wabash) cross time zones here.

There are two regional roads that are seldom heard: KBS and TP&W. The latter interchanges with CSX at Reynolds.

Our primary interest is the Monon subdivision of CSX. There is a VR camera at Lafayette which favors the CSX main line at around milepost 119. Amtrak's 3 times a week Cardinal can be seen passing the camera and making the Lafayette downtown station stop in the distance (milepost 120.1).

Amtrak times are mornings Monday, Thrsday, Saturday northbound (PO51), and evenings on Tuesday, Thursday, and Saturday southbound (PO50). Amtrak still makes non-revenue equipment moves between Chicago and Beech Grove on trains 50/51. A shuttle loco is added or subtracted at Indy. Usually when additional locomotive equipment is in the consist, the conductor will be in the other locomotive.

This radio feed tends to pick up dispatcher towers and Lafayette yardmasters, but not always crew shuttle vans and usually none of the handhelds. What is heard from on board depends a great deal on various factors: techqnique of the operator, condition of the locomotive radio/antenna set up, terrain, other radio traffic, and of course weather conditions. 

Our mileposts of possible CSX coverage north to south are between Rensselaer (72.3), Lafayette (120.1) and Crawfordsville (Elmore 148.3). Usually RB dispatcher is heard from fixed towers, with mobile traffic quite variable for the above-listed reasons.

As side notes, channels 12 and 84 are also  in use across other portions of Indiana, especially on CSX Garrett. If skip conditions are in effect, there will be stray signals coming in from up north.