How about this?
Thanks to everyone for their suggestions. Let me describe my
thinking as of now and let you all shoot holes in it
Assumptions:
receivers-dpp44-LNBFs setup
cable distances affect 1) power to LNBFs, 2) DiSEqC commands to/from receivers/dpp44/LNBFs on 22KHz tone, and 3) received signal from LNBFs
back to receivers
power supply and inserter provide power to dpp44
dpp44 provides power to LNBFs
power from receivers does nothing
receivers talk with dpp44 but not LNBFs
dpp44 talks with receivers and LNBFs
dpp44 de-stacks/re-stacks signals from LNBFs to meet the needs of the receivers
dpp44 does not amplify signals from LNBFs
So, based on those assumptions I would propose the following:
With 300 ft cable length between receivers and LNBFs, locate
dpp44 mid-way at 150 from each end.
dpp44 is within power range of the LNBFs
The receivers are within DiSEqC range of the dpp44 and the
dpp44 is within DiSEqC range of the LNBFs
The only cable-length related issue left is signal level from LNBFs
back to receivers. I propose using in-line amplifiers such as the
ChannelVision Sat-20dB (950-2250MHz) on one side or the other
of the dpp44.
So - what do you all think? Feel free to explain why it won't work, better
to do so on paper than after it's installed.
Thanks again
Mark