We just switched for other reasons, just good timing. Talking to Dish was hopeless. The local dealer was easy to deal with. She gave us a Hopper 3(which is updated on a regular basis by Dish), roof unit on our RV lot roof. We need to move our traveller over to Dish. I emailed Winegard, and they told me I needed:
You have the SK-SWM3 Trav'ler. To convert a DirecTV SK-SWM3 Trav'ler to work with DISH service, you will need to change out the head of the antenna to make it work with DISH. Please call our Customer Support team at 800-288-8094 and order parts RP-SK11, and RP-SK21.
You can order parts on our website using the links below as well.
https://winegard.com/products/satellite-tv/roof-mounted-antennas/travler/dish-bell-hd-travler-replacement-reflector
https://winegard.com/products/satellite-tv/roof-mounted-antennas/travler/dish-bell-hd-travler-feed-arm-with-lnb-cable
I bought both on Amazon and the dealer will install. I don't know why Winegar needed to know this. I still need to ask them how to get the control unit updated.