Originally Posted by XXX
Bairnsdale and Yarram in Vic would be examples as they don't have their own discreet frequency, so use 126.7.
They both
do have a discrete CTAF published in ERSA: 126.7.
Without going through every airport in ERSA to find one that doesn't have a discrete CTAF (which may well be 126.7), the original question stands:
If there's no CTAF published (eg farmer Brown's strip), do you use the Multicom or Area? My money would be on the Multicom.