ID Search being used, instead of ID Scan may be part of your problem. But, if when you see the talkgroups you
did not want, are you seeing only the talkgroup, with no text label? If you're only seeing the numeric talkgroup ID, then that is indeed an ID Search vs ID Scan issue.
On the other hand, if, for the 'unwanted' talkgroups, you are seeing both the numeric talkgroup ID, as well as a text tag for the channel, then that is an import error in FreeSCAN.
FreeSCAN has a selection for 'skip tags', in other words the types that you
do not want to import.
View attachment 107875
If you
only wanted Federal agencies to be downloaded, select every listed type
except Federal, and then FreeSCAN will import only talkgroups tagged as Federal.
For the various service types other than Federal, you'll need to be more selective in which groups you choose to import. A group, covering any given county, may have a mix of local & state agencies. While, in most cases, you won't have a state agency tagged with a Fire or EMS service description, you certainly will have your share of state law enforcement entries tagged as Law Dispatch, Law Tac, & Law Talk.
In FreeSCAN, you can only select a department; you cannot see the individual talkgroups in it:
View attachment 107876
However, in ProScan (and presumably the ARC software for whatever scanner you are dealing with), you can look at the contents of a given group & adjust your selections there.
View attachment 107877
You did not specify a scanner model, but if you can program it with FreeSCAN, then your model is
not one of the Home Patrol scanners (HP-1/HP-2, 436HP, 536HP. SDS100. or SDS200)