NF-3RC extends the capabilities of the NF-2RC unit with a greater number of circuits and more flash lights regimes. Just as NF-2RC it has two position lights circuits. It has also two landing lights circuits and two flash light circuits. Switching on/off of the second landing lights circuit is delayed by 1 second against he first circuit. That produces an effect of phased switching by the pilot. Eight different combinations of flashing can be selected for the two flash light circuits. Three couplers (jumpers) are used for selection.
One second is split into 16 parts. It is possible to set during which parts the light should be on (1) and off (0) to both flash circuits. Such a couple of sequences of 16 ones and zeros represents one combination of flashes. Eight such combinations (couples of sequences) are saved in the unit. By default, the unit contains six combinations of 1, 2 and three mutually shifted flashes plus two flashing modes 1:1, one with the period 1s, the other twice faster. The last two regimes are designed especially for helicopters owners.
A coupler is used for selection of 2- and 3-positional control regime as in NF-2RC. If the 2-position control is selected, in the first position the position and ant-collision lights light, in the second position the landing lights get switched on, too. In the three-position regime, in the first position, all lights are off, in the second position the position lights and anti-collision flash lights are on and in the third position, all lights are on. The unit can be used also in no-control mode. In that mode, position and flash lights are permanently turned on and the coupler for regime selection switches the landing lights.
Thanks to a galvanic separation of the receiver’s and power circuits (by an opto-member), the illumination can be powered both from a common source or from an independent accumulator. The NF-3RC unit can be used also as a basis for your own constructions for excitation of MOSFET power transistors.
The circuit is extended with detection of failure of the receiver's signal - it is indicated by permanent flashing of the anti-collision flash lights and the landing lights.
The NF-3RC, besides control circuit, includes 1x5 mm 20 mAh green LED, 2x5 mm 20 mAh red LEDs and 6x5 mm 20 mAh white LEDs