it depends on how your apt complex is set up.
normally you cant just split the lines but if your apt has the Single Wire Multiswitch then you can.
from what i am reading about your setup you have 1 cable coming from the dish and then it is split going to h21s and your hr21. if that is the case then you do not need to worry about the second cable to your hr21.
normally you cant just split the lines but if your apt has the Single Wire Multiswitch then you can.
from what i am reading about your setup you have 1 cable coming from the dish and then it is split going to h21s and your hr21. if that is the case then you do not need to worry about the second cable to your hr21.