That's because you're putting the 32784 TGID into where you should put "HEX or DEX".when I try to enter 32784 group it says out of band. I went to Program system>New System>MOT>P25>Confirm>Set Frequencies to enter the group.
Programming Your Uniden Scanner - The RadioReference WikiHow do I program system talk groups on my Uniden trunk tracker IV BCD396XT?
Thank you.