I listen to Mesa Fire all the time and 2 days ago i heard on digital TOPAZ C-1 they dispatched a string to B-2 for a fire call. So it appears Mesa has split their firecalls to the VHF side recently. Unlike Phoenix RWC that has 15 freq’s on the “A-deck”, Mesa has only 5, so they might have opted to discontinue use of B-1 as a simulcast in Leiu of an ops channel? I will repost if I can verify