I forgot about having the polarity rotated 90 degrees.
On my DSR-905 when my feed assembly is correct for FTA - I have to check the "Rotated 90 degrees" option in my 4dtv so everything lines up.
Check to see if your "rotated 90 degrees" is check marked under your system setup on the 4DTV.
If it is NOT and you are getting 4DTV, then your feedhorn may need rotated 90 degrees and then check the rotated 90 degrees box. Your FTA box should be in line with polarity from that point.
BTW,
Be careful swapping cables while either receiver is plugged in. You can kill your lnbf by "hot swapping" cables. It will be problematic to power down the 4DTV every time you would swap cables because it will have to re-boot and will look for new channel maps.
Get a High frequency splitter (950-2150 mhz) or (5-2100 mhz) splitter with two port power passing. You may need two splitters. One also for the KU band cable.
After you split the cables send two coaxes to the 4DTV receiver C and KU,
take two jumpers (short coax cables) and run them to a diseqc switch, from the diseqc switch run one small jumper to your FTA receiver. In the antenna setup menu of your FTA receiver, you will choose the proper diseqc port for each satellite programmed in your FTA receiver.
After this is done, you will have seemless switching between 4DTV and DVB FTA.
Just turn off whichever box you are not using and the other box will control the lnbf.
I have had an instance where the 4dtv was still sending 18v to the lnbf causing my FTA receiver's verticals (13v) not to come in. It only has happened once and was probably just a bug.
