I am using a new HP2 in Covina (91724) and have set up my favorites that include LA County Fire/EMS and Sheriff in local area. I also set up Covina Police in my favorites. I receive plenty from LA County broadcasts, but NOTHING from Covina PD. I am using the freqs provided in Sentinal for Covina which are 153.8600, 154.7250, 155.4900 and 155.3700. Any advice?