The computer may be connected directly through the ESI while still permitting remote computer access by dial-up. Users may install as many copies of the CDL as they wish, permitting convenient access from home or from a notebook or laptop computer while on the road. In a multi-site installation, data from all sites is always available for immediate display. Complete control of all connected sites is possible from the keyboard. An operating log can be directed to either a printer or disk, and the logging interval is user selectable from five minutes to three hours.
Many stations use off-premises monitoring at least part of the day.
The program will take corrective action when needed and log the result to a printer or disk. Connection is made with the ESI Enhanced Speech Interface or CI Computer Interface . Metering values and status conditions returned by the transmitter control system are constantly watched by the program to determine if corrective action is necessary. Modes can contain tests, commands and branching instructions to complete the desired corrective action. Power trim is an example of a simple mode.