Tuners

[tony081]

Hi All,
Running Open - Pli
Running receiver on 1 lnb, 2 cables, tuner A usals, what settings should tuner B have?
The reason is that if it is equal as tuner a satelite does not move, if on advanced tuner b becomes the lead and i loose tuner a ?
Is it best to use loop through or usals for tuner B?
How to i swap from 1 tuner to the other?
Thanks in advance

[grtmoby]

tuner B should be loopthrough

the box auto swap from one tuner to the other although u can only set the priority but can't select a specific tuner to tune to a specific channel