Tvheadend

All,

is it possible to run a specific service - say Radio services - explicitly over a DVB-C card, instead of DVB-S?

Have a multi-frontend system and I'd like to use DVB-C for radio only. All intended services are available on both DVB-C and DVB-S?

Could this be done by having the DVB-C parameters string while doing mapping of the service first - to have a fallback to DVB-S?

TIA,
--volker