Methods and devices for coordinating and displaying electronic signals are disclosed. For example, an example of a apparatus configured a particular system can include a local timing device capable of receiving external real-time clock signals from a first time source, the timing device being capable of maintaining a synchronized local real-time clock based on the received external real-time clock signals, instrumentation configured to detect and capture one or more local signals, an operator interface having at least a first display window capable of displaying an image of the one or more local signals, and a marking device coupled to the operator interface and configured to enable an operator to manually align one or more local markers to specific points relative to the displayed local signal image, wherein the marking device is further configured to derive a marking time for each local marker using the local real-time clock, wherein the marking device is further configured to receive remote marking information from a remote device, and wherein the apparatus is configured to provide at least one of the remote marking information and data derived from the remote marking information to the operator via the display window.