According to Ken (716-220-5153) only do this when adding the “long” antenna or you could damage the receiver (yellow box).
“S1” is trolley out first speed
“S2” is trolley in first speed
DIP switch #1 & #2
-Main power off, remove 4 screws on transmitter. Find DIP switch #2 and move it to its opposite position.
-Main power on, and remote on press start button. Crane should start up, but not honk
-Hold the start button, function button (black button on opposite side of start button) and S1 (trolley out first speed)
-This enters you into the service menu and toggle through the menu using S2 (trolley in first speed) until you reach RF Power (should read normal)
-S1 until the the RF Power says “MAX” (it goes normal, high and max)
-Press start button, function button and S2 and it read Result OK when complete.
-Shut off main power, switch DIP switch #2 to original position and replace cover