Couple of things,
Before you go use this site to get your settings, Satellite Finder / Dish Pointing Calculator with Google Maps | DishPointer.com
then use a compass at the camp ground to get a rough setup, get an in line signal meter ($12.00) to fine tune the setting, saves running in/out, Sf-95 Satellite Signal Finder with backlit display*::*Satellite Meters*::*Signal Level Meters*::*InstallerOasis.com
next, i do not quite get your wiring description (picture of switch box may help),
Carryout>cable in>coax out>Sat. receiver>switch box>TV?
I would think the sequence would be; Carryout, cable in, cable out, switch box, Sat receiver, TV.
Test; put the signal meter in line between the carryout and the cable in, get a strong signal. disconnect the signal meter (careful not to move carryout). take signal meeter in attach behind switch box and adjust switch setting until you get signal, if no signal more meter in front of switch box and test.
Also the Installer Oasis has a good FAQ and help area. Let us know what happens.