I contacted Dish via email at
ExecutiveCustomerService@dish.com about activating two Hopper 3s on my account. I like hardcopy communications rather than phone calls.
I promptly received a positive response from a Case Manager in the Executive Escalations Department who offered to personally have them activated when I'm ready.
I also inquired about using my Dish Pro DSS/FSS Dual Band LNBF on the DPH42 for 118.7 reception. He checked and got back to me that it will work and sent me a copy of a diagram for such an installation for international customers on the eastern arc. A copy is attached.
Based on that response, I ordered a DPH42 and a Hybrid DUO Hub from DishDepot last week that I received and installed yesterday.
I'm happy to report that my two Hoppers with Sling and 4K Joey are all able to receive programming from the 61.5, 72.7 and 118.7 satellites.
I am now in communication with Mark at DishDepot to order 2 Hopper 3s with production software version U337 or later so that they recognize the DPH42.
Great customer service from Dish!