+xAs pgroell said, the AIP is ambiguous at best. When the AIP doesn't give a clear frequency (or single unit) to call to enter airspace, how is SkyDemon supposed to do so?
OK, we are off-season and I haven't tried, yet. Next flight I will check the following. If I'm not mistaken, SD issues warnings like "xxx ahead/above, call yyy APP on ...."
1) I haven't tried yet, if tapping on the frequency shown in the warning does the trick to set the radio as a work around
2) Obviously for warnings, SD IS capable of determining the right service and frequency; so what's the problem to put'em into the radio tab? (for these, which are already identified in the Flight Details)
3) As in UK, the service of a zone has to be contacted at least 5 min before. Question remains, if the warnings popup does respect such timing requirements.
4)Last not least, what's the ambiguity? If there are 3 services named, that's no ambiguity! There is always only ONE APP service, responsible for the zone. This service might be off, because the zone is not actif. So FIS will know. If the zone lys across 2 FIS services, there are 2 FIS frequencies mentioned, depending from which service side you're coming. This is not a problem for SD, because it is already indicating the right FIS frequency of the zone, in which you're flying. So what left, is just putting the APP service freq into the Radio Tab.
BR
hk