Hello Dispatcher812
If your primary interest is being able to hear the pilot side of the transmissions, your radio should be ripe with action 24/7 in the state of Connecticut! However, being able to receive the air traffic control side of things is not quite as easy, whether you are mobile or not.
As far as ARTCC commutations are concerned, familiarizing yourself with the local RCAG sites might help you immensely. There are two such sites in Connecticut; Shelton and Woodstock. These two sites are specific to Boston Center and are tuned to the frequencies of some of the busiest sectors at Boston Center. The FAA tends to position the RCAG sites on the highest point possible in each geographical area, and since the transmissions are intended to be directed upward, one might have to be quite close to the site to hear the transmissions from air traffic control.
Then again, I am by no means a radio communications equipment expert. I am however a current FAA controller who used to work at a facility in the busy northeast corridor. And here is what I recommend for you....
Boston ARTCC.... any and all of the sector frequencies on the aforementioned RCAG sites. Again, these sectors are busy and the low sectors feed and are fed by New York and Boston TRACONS. Depending on where you are in CT, you might be able to receive Yankee TRACON (Windsor Locks) which services quite a bit of low altitude enroute traffic transiting the NE corridor (we call them TEC routes).
In the mid to late evening, tuning in to the high altitude and ultra high altitude sectors at ZBW should afford you a ton of chatter from aircraft heading out over the Atlantic to Europe and beyond. However, I transferred out of the northeast many years ago, so ZBW could be using a lot of CPDLC. If that is the case, high altitude transmissions may be a bit lacking.
For what it is worth, I use a Uniden SDS100 with GPS enabled when I travel in my vehicle. Of course, working air traffic for a living, I have no desire to monitor aviation communications. I very much enjoy the technology of the radio and the ease of operation.
If you were to conduct a thorough search, you might be able to find sector charts from the TRACONS and Boston ARTCC on the web. The FAA does not make a habit of making this type of information public, however you should be able to find something useful!
Have a good day!
S.