According to the Antenna instruction booklet, under Special downloading instructions it says the follow:
Special Downloading Instructions
Use these instructions directed by step 8 on page 5 to update dual-tuner receiver software.
Note: You will need a DISH Pro compliant splitter to complete this installation. The splitter is used only temporarily during receiver software upgrade and must not be left installed in the system.
1. Connect a single cable from either DISH Pro Plus Twin LNBF port (PORT 1 or PORT 2) to the LNB port on a DISH Pro compliant splitter (not a DISH Pro Plus Separator). Then connect two cables from the receiver ports on the DISH Pro compliant splitter to SATELLITE IN 1 and 2 ports on the receiver.
This DISH Pro splitter in this installation is used only temporarily for upgrading receiver
software. This splitter must be removed and replaced with a DISH Pro Plus Separator
following software upgrade or else the system will not work properly.
Display the Point Dish/Signal screen. Make sure the signal strength bar is green and locked for the 119°W or 110°W satellites on an odd transponder 11 or greater (for example, 11, 13, 15, etc.). Note: If the signal strength bar is not green and locked, toggle the transponder number up one and then back down one.
Do not run Check Switch at this time. If you do run Check Switch by mistake, this situation
can be corrected by completing the following:
a. Disconnect all SATELLITE IN cables.
b. Run Check Switch.
c. When Check Switch finishes, exit the Installation Summary screen back to the Point Dish screen.
d. Reconnect all SATELLITE IN cables.
Exit the Point Dish/Signal screen and follow your receiver user's guide instructions for taking a
receiver software upgrade. If exiting the Point Dish/Signal screen does not start the upgrade process
as described in the receiver user's guide, then, turn off the receiver for at least 20 minutes (on most
receivers) to allow the receiver to take a software upgrade.
After the software upgrade is complete, remove the DISH Pro compliant splitter.
Return to page 5 and finish the installation starting with step 9.