The first version of the NIFOG was published in September 2007, and I know that it has been a work in progress. I work for a shop with manly PS customers, and we have been programming the V, U, 7 and 8 TACs in most every PS radio that goes out. Well, I don’t recall when the VFIRE, LAW and SAR channels first appeared in the NIFOG, but we started to load them in with the other VHF I/O channels. If a decode CTCSS tone is different from other units the channel is useless, and yes this is a good cause for a monitor button, or CSQ. The problem with CSQ is it opens the radio up to nuisance (no severe) interference and nasty squelch crashes. It is 19 years on since the NIFOG was first out, I do recall narrow banding and everyone’s radios needed to be reprogrammed since then. I understand some people don’t like change, but most of the “old timers” have retired by now, so there should be no excuse for “that is the way we have always done it”. Too many people have forgot about 9/11 and that was a big push for interoperability, I don’t know if is still the case but it use to be if you purchased radios with Federal grant money the interop channels needed to be programmed in.
Most of the higher end radios will give you1024, 3000 and up to 6144 (KW Vx8000) channels, and fire responses of up to or more than 1000 Miles for a conflagration here on the west coast, you can create a Command Zone (or what the manufacture calls it) as soon as you have the ICS 205. We have customers with almost every conventional fire channel in for WA, OR and CA, and they do have some TRS programming in them for systems over 100 miles away.
I’m sorry to the OP, I know this was a SAR question, I was just suggesting the 127.3 tone to try. Also, I realize that a lot of SAR groups are volunteers and they may very well own their own radios or have hand-me-downs from the local S.O. or even CCRs, but there are standards that NEED to be followed. That is not to say you have your “local” SAR group on their own tone but label the channels i.e., “SAR GROUP 101” and in another zone VSAR 16 with the 127.3 Hz tone. OK, end of rant...