You are asking about scanning Texarkana in a group with an Austin heading so you might want to repost this using Texarkana as the title. Under Broadcastify I found this link for Bowie Co: https://www.broadcastify.com/listen/feed/20620 For the frequency list check here: https://www.radioreference.com/apps/db/?ctid=2541
We in Austin cannot hear Texarkana on our scanners. unless we were there. They may be on the same Trunked System, but their talkgroups will not normally come in here.