This indicates that the Quadrino is not receiving the channel signals from the receiver module. Check that:

1. The receiver unit is getting proper power. The receiver unit should be powered from the Quadrino by the red and black wires on the RADIO cable.
2. The receiver has been bound to the transmitter. You will have to consult the manual for your transmitter on how to do this.
3. The RADIO channel signal wires are connected to the right pins on the receiver module.
4. The correct receiver protocol has been selected within the Firmware Config Tool (Options | Receiver | Rx Protocol).

Receiver Protocol

It is important that the correct protocol be selected in the Firmware Config Tool. If you have one wire for each receiver channel, then you use Standard PCM! If you have 1 signal wire for *all* channels, the you use PPM SUM. Don't let the Transmitter Model selection box fool you, this box only matters if you are using PPM SUM protocol, and it is only used to select the channel order in PPM SUM mode.

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