I have been a scanner listener for a long time -- and have lived in Boulder a majority of those years. I started out with a 4-channel crystal controlled scanner from Sears (!). Thankfully, times have changed!
These days, I listen on a Realistic 2004, a Pro-92, a Pro-39, a Motorola Minitor IISV pager, a Bendix/King EPH510SM VHF handheld, or a Bendix/King EMH5990A VHF mobile. I have a Motorola HT-1000 that doesn't get used much by me, but I carry it in the truck as a backup since the FD issued it to me.
At work, Security and Maintenance crews are on an 800 MHz LTR system. I bought a Bendix/King LPX-2101 on eBay for cheap -- then struggled to get it programmed. I've had limited success. You're welcome to read my results here.
For reasons unknown to me, certain Internet searches on Bendix/King radios rank this page fairly high. If you landed here and are looking for BK Radio information, I recommend 2 sources:
I have put together a list of scanner frequencies in the Boulder, Colorado area. This list is very Boulder-specific. This is the first time that I have distributed it, so I am very interested in updates and corrections. Please send me E-MAIL! Thanks for your help.
If you need Colorado frequency information outside of Boulder, I recommend: