Hitachi 13K 50UX26B Operating Manual page 52

INITIAL SETUP
DOWN ( ) buttons.
If the EXIT button is pressed while the AUTO CHANNEL SET function is engaged,
programming will stop. If two antennas are connected, switch antenna inputs with the
INPUT button and repeat AUTO CHANNEL SET for the second antenna input.
Remember to select the correct SIGNAL SOURCE mode before using AUTO
CHANNEL SET for the second antenna input.
See CHANNEL MEMORY to add or erase additional channels.
CHANNEL MEMORY
Use this function after AUTO CHANNEL SET to add or erase additional channels to the
remote control CHANNEL or buttons.
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