hatzalah

I frequently listen to NY Metro area Hatzalah feed. In the Brooklyn Hatzalahs (Flatbush, Boro Park and maybe others as well) the units will often relay to dispatch something that sounds like "we are transporting to IV" or "we are going to IV". Does anyone know what this means? I'm assuming that...

Does anyone know the correct frequency for Hatzalah South Florida (formally Hatzalah Miami)? Site Name County Freqs 001 (1) Miami Beach Miami-Dade 461.5125 (CC 1) 002 (2) North Miami Miami-Dade 462.175 (CC 1) 003 (3) Aventura Miami-Dade 463.200 (CC 1) 004 (4) Countyline Miami-Dade...