Given the fact that
TxWARN is P25 Phase-II capable you'll only be able to pick up talkgroups ID'ed as mode "D" using your Pro-197. Mode "T" talkgroups are
TDMA and for those you'll need a
Phase-II/TDMA capable scanner. Mode "DE" and "TE" talkgroups are fully encrypted and cannot be tracked by any receiver not intended to operate on the system