Call DISH to add this 508 back on your account. You will get an answer and possibly an offer for a free 512 as a replacement if it was deactivated. Either way your free viewing is over.
I can support Doug I don't subscribe to velocity and my ALL CHANNEL listing skips from 362 to 368. There is no 364 in ALL CHANNELS on WA. I do get Velocity on 5710 TEST
Did you call and reactivate the 508 or did you connect it and it was working? It could be that it just received last falls deactivation signal if it hasn't been actively connected to AC power and a DISH signal.
Your old 722 will have to be reconnected to your dish and authorized for EHD this will authorize your new receiver on the same account to work with EHD. The DISH receiver will reformat the 1TB drive so you will have to reformat it to use it for computer backup.
Probably because DISH reuses their leased receiver, if the fan was inadequate when manufactured it is still inadequate when reissued to a new customer. Your 722 has been out of production for years.
Why do you have a run from the dish to the house, then from the house to the shop? The DP system was designed for maximum cable run of 200' you are at 350' so you were lucky the 222 worked. Shorten the cable run or put the 222 back in the shop.
DISH uses a band stacked system.
try a google search for "DISH bandstacking frequencies"
DISH uses 950-1450 MHZ for odd transponder & 1650-2150 MHZ for even transponders.
the longer the cable run the more signal loss occurs on high frequencies. From your original post you state 125' from...