The Gre and Radio shack scanners sound great right out the box with P-25 mode. Really no need too adjust, only if you want too, according too your preference etc. Uniden has always had problems, trying too figure this p-25 conventional or trunking thing out from day one. It's always been too loud or unbalanced, uneven, etc. Even with their so called upgrades, tweaks, or what ever. Believe me I've own just about every uniden p-25 capable scanner they've made thus far. Its the same ole thing. Now trying too help out with their support, and it's all good. But time after time i fine myself being excited only for disappointment, do too faults or glitches, delayed firmware upgrades on their behalf. I understand NO SCANNERS perfect. If i pay $500 plus for their stuff i expect them too get it right, the customers always right. But they just still can't get it right. Now Radio shack and now Gre gets thumbs up in regards with getting the p-25 com right, or some what right.. As well as current and frequent and less trouble some upgrades. Lets see if uniden get it right with their next generation of scanner?