You can find French Robertson unit traffic on their repeater, which is CH 1 in the original statewide plan. It is 154.995 RX, 153.965 TX, PL 100.0. That channel will carry most outside traffic, such as field force, farm and ag, work crews, and transportation folks coming and going. You won't likely find your captain on that channel, but depending on his exact duties maybe. Captains can be over GP Shifts, Admin, Disciplinary, Segregation, and Trusty Camps at large camps. You would be more likely to find him on CH 10, 154.115 PL 100.0, which is the last reported building channel. It is simplex, and portable only, so unless you have a good, tall tower nearby the unit, you aren't likely to hear any building traffic. Building channels are where all the action is. Captains in TDCJ are generally numbered from XX33-XX39, XX being the unit-specific prefix. Robertson Unit numbers start with 66. So, he may be unit 6633, 6634, 6635, 6636, 6637, 6638, or 6639.
Oh, and yes, 153.905 is the statewide simplex travel and relay channel used by radio pickets and traveling transports only, although some field forces use it as a back channel to get off the repeater and BS.
