It is a great idea to use the VHF color channels of the MABAS group for on scene comms down here in southern IL. I too believe it is the way to go. Too bad I can't hear those transmissions on this side of the river. Oh well.
The MABAS-IL system is one of very few things to come out of Cook County that really benefits downstate. I'm a huge supporter (and division officer). If you think the radio portion is something you need to look at the complete list of standardized equipment, support, training and services. We're the national poster child for how mutual aid ais is supposed to function.
Over the years I have identified three self-inflicted problems with using the MABAS color channels:
1. The six standard channels are low-power only (10W ERP max) with NO base stations ... unless you are close to Missouri where FG-White is the same freq as MO Statewide Fire Mutual Aid but with a different CTCSS. The theory is that with no off-scene high powered traffic the chances of critical incident traffic being 'walked on' is reduced. Another advantage is anyone coming to play has the same standard channels as you do.
Those theories have proven themselves. The problem is as you said- portable simplex traffic cannot be heard at any significant distance. That 'problem' has prompted some bureaucrats and lawyers to complain traffic cannot be monitored by micro-managing chiefs and recorded in distant dispatch centers. Waaa. I'd much rather be heard reliably 200 feet away over stupid plain old fashioned analog simplex and avoid injury than testify in court how the injury was caused in part by a failure of an elegantly engineered repeater or digital trunking system.
2. Hose humpers (said with tremendous respect as I have humped my share of hose) need to - gasp - remember to change channels when they get on scene. Firefighting: two hundred years of tradition unimpeded by progress. Get over it.
3. Some firefighters in some agencies are genetically defective in a manner that only allows radio traffic transmitted over Grandpappy's traditional proprietary 153.8450 radio frequency to pass their ears. Their genetic difference renders them incapable of understanding traffic on any other RF frequency. They can immediately tell the difference between 153.8450 and 153.8300: "Bubba is all garbled, so we can't use that new fireground channel. If you come with mutual aid you will have to use our secret squirrel channel because we can't use anything else."
You think I'm kidding? Think again. I can name names and am too old to care who I tick off.
Ladies and gentlemen, I have digressed off topic and it has been an eventful day.
Another man-made artificial disaster averted.
Thanks.