Upper State St. should be a good location for receiving Troop B, but remember that Chicopee PD's antenna at HQ is located in a "hole" on Grove St. so the range for them is limited. I have trouble getting CPD on I-91 Southbound near the Basketball Hall Of Fame and beyond, and the antennas for both Springfield PD and MSP B-3 (Springfield barracks) are visible in that area and reception is good.
I don't have any problem at work getting Troop B from the Mt. Tom repeater and Springfield PD also comes in very well and that's at Bradley Int'l. in Windsor Locks, but no Chicopee reception, ever.
Russell