u/kt_addy

Bought an RTL SDR two days back. I am trying to decode a DMR signal but it just doesn't work no matter what I tweak? While it does decode to an extent, it isn't perfect. Is there a fault with the device or is there something wrong with what I'm doing. Using an app called P25 decoder on 444.162 MHZ. Sharing product photo and error screenshots below.

Thank you

Any offline shops where I can buy one?

Thanks!