I Have a 622 & 501 W/1000 and they work but, 129 is weak 30's to 50's with dropouts & lockup on the 622. Called Dish Store and orderd a 500 dish. Mounted the new dish pulled the 129 LNBF out of the 1000 installed it in the new one (same coax pulled it out of the 1000 arm & up the 500).
Pointed...