People served by the Rosemarkie transmitter will lose Radio Scotland, Radio Nan Gaidheal, and BBC national radio services for short periods.
DAB radio and TV services are unaffected.
The disruption is expected over the course of the day. BBC Scotland said it apologised for the loss of service.
Listeners in the Inverness and Inner Moray Firth area were expected to be the worst affected.
The final phase of disruption is expected to last for about two hours from 12:45.
BBC radio listeners in the Highlands could find their service affected due to essential transmitter work taking place on Tuesday.