I think you would be very happy with a Rigol DSA815-TG spectrum Analyzer (brand new at $1,495). Do a goggle search on it, unless this too much money for you. It is top notch, light weight (~9 lbs) with 8" LD screen, 9kHz to 1.5GHz, with Tracking Generator, Minimum Resolution BW of 10 Hz (Spec. says it is 100 Hz, but it is 10 Hz).