I am trying to use
DTV LNB and legacy DN LNB to receive one of these channel
VTV4 (97W) or VPTV (101W), with a 30". The signal level is up to 98%, but the quality is only 5% or peak at 10%. The pansat 2700A cannot lock to the either satellite. My friend came over and replaced my LNBs (DTV and DN) with a Ku LNBF, and the pansat 2700A was happy to display picture. So why could'n I use the Direct TV LNB or Dish Network LNB for the channels? Please help. Thanks.