This may sound odd but measure the motorola end of the connector and then the depth of the motorola socket on the 145. I recall my mother had 145, years ago and the motorola end on the RS connecter was just short enough not to make contact on her scanner. Therefore wouldn't receive anything.
Assuming the internal circuits are working you should be picking up somthing. According to the database
everyone in you county are using conventional frequenices.
".....the clouded mind see's nothing"
BC996XT,BC996T, BC780, PRO-2006, Yaesu 1802