B Dec is unfortunately all encrypted now from what I can tell. Those TG's probably need to be updated in the database to reflect that. I hear them switch to these TGs from time to time but as far as I can tell they don't see heavy use. Most of the non-tactical traffic missed is missed when hot calls go to C Dec which is of course encrypted. For me Phoenix PD is (now) usually too boring to monitor, as anything interesting almost always goes to C Dec. Therefore I only monitor my most nearby TG which is A9. I regularly hear violent incidents get switched to C Dec with no reporting on those events every happening in the media. I wonder if the local media hasn't mostly given up on trying to learn about major Phoenix PD events on the scanner these days due to all the encryption. I'm sure the powers at be are quite happy that many violent events are never heard about outside of the affected neighborhood. The less anyone knows about the crimes going on in real or near-real time, the better for them sadly.
Still, keep in mind, that some very interesting things can and do pop up so fast that it's not practical for them to switch to an encrypted TG, in which case you will hear some of the most interesting things. The other night a man with a shotgun was running from an officer when an officer radioed dispatch, and due to how fast things were happening the whole search including K9's and aircraft happened all on the A Dec TG. Those little gems happen rarely, but they do happen.
Not to veer too far off course here but on a related note my home PD (Glendale) has the most balanced approach of any of the major valley PD's. Most hot calls stay on the dispatch channels, and they only move hot traffic to an encrypted channel if it starts to drag out and they don't want to keep the dispatch TG tied up during busier times. Obviously true tactical work, car to car, and info are all encrypted. This strikes me as a very reasonable approach, and I only wish other valley departments operated this way, but of course when it comes to things like this you can wish in one hand and...well, you know the rest.
The best valley PD channel to monitor for those hoping to actually hear the cool stuff happening is Glendale PD A01. That covers the part of Glendale just north of Maryvale, the most action packed Phoenix precinct, so you will things "as in the old days" for the most part. That TG can be monitored on Simulcast B for those of you who can't receive Simulcast G.
With regard to Phoenix hot calls, in the case of a violent incident I go right to Phoenix fire, where I can at least get some information on the event. If it's a major event I also make sure to monitor AM air to air because the helicopter pilots (law enforcement and media) often talk somewhat freely there. The better your outdoor antenna setup here, the better of course. I can hear them talk all over the valley.
Monitoring Phoenix PD these days you will mostly hear just the following:
Hot calls with minimal details, with instructions to change to an encrypted TG.
Calls regarding non-injury accidents and traffic issues.
Alarm calls.
Disturbance calls.
Calls regarding transients.
For their part in causing this situation with regard to Phoenix PD, a SPECIAL thanks to the media for inserting themselves into tactical situations one too many times (sarcasm intended). Fingers crossed that MCSO doesn't follow the Phoenix PD example (with a former PPD detective now seated as sheriff).