You can use the Black tab or the Green #1 Tab with the UHF box on it. You need to go to Menu 6-1-6 "TV1 UHF Pro Set-up" Screen. On the right hand side is a box "System Info", be sure the TV1 UHF Pro Set-up is ENABLED then select on the "System Info". With this screen up, go ahead and press the "record" Button 3 times and it should change your remote address to a UHF address! Good Luck!I think what I need is a #1 tab for my 6.4 remote?
The 6.x remotes work just fine with the 512. You need the green 1 UHF key, not the black UHF key like you needed for the 508.
The 21.0 will also work and since DISH no longer offers the keys separately, that may be the more flexible option.
You can try it all day long, with every remote and key option out there. The 512 does not work with UHF, at least not with the current software. The menu option to set up UHF pro 1, was left in the software from the 522, but it doesn't work.
Now you know MATTG
Remember, this is an antique receiver. Little doubt they would not know all about it.I figured that. I could never get it out of IR mode and into UHF mode. The people with Dish Network tech support are worthless and have zero knowledge.
KAB said:Remember, this is an antique receiver. Little doubt they would not know all about it.