Can a single exciter feed more than one AM transmitter such as a BU TRX?
Presumably this question means not feeding them simultaneously, but rather the ability to “hot switch” the exciter from one tx to another. In theory, there is no technical reason why this special implementation couldn’t be done; soon-to-be released software code for the exciter will support loading multiple configurations, even remotely. The issue is that each transmitter has its own phase/magnitude group delay which must be loaded at the time the transmitters are switched. However, before manufacturers can provide guidance on the tactical way to implement this, some prototyping and field testing will be required. We expect this to become an important issue if and when nighttime AM IBOC is authorized, because dual day/night transmitters are common.
