The most common Ku LNBs, at least in this neck of the woods, are 10600 (mainly) and 11300 (10.6Ghz and 11.3Ghz) LO (Local Oscillator) types. Depending on the satellite, you may need a certain LO to receive a certain channel.
For the LNB to work, the transmission frequency (generally ~11-12Ghz) minus the LO frequency, must be in a range the tuner can accept (generally 950-2150Mhz).
I would not recommend aligning a dish without proper equipment.