Features of the Futaba digital proportional radio control set include an ergonomic case, newly designed sticks, servo reversing switch for each channel, easy to read transmitter battery voltage/output level meter, neck strap bracket, and standard nicad operation. The receiver is a high-performance AM 4-channel receiver with a miniature size and light weight achieved by maximizing the PC board space.
The document provides a user guide for the Futaba FP-4NBL digital proportional radio control system. It details the features of the included components: the FP-T4NBL transmitter with ergonomic design and servo reversing switches, the FP-R114H receiver optimized for 72 MHz bands, and compatible servos (FP-S148 and FP-S133). The set is designed for RC model operation including engine-powered planes, gliders, and electric aircraft.
| Channels | 4 channel AM proportional |
|---|---|
| Transmitting Frequency | 72 MHz bands |
| Modulation System | AM (amplitude modulation) |
| Power Requirement (Transmitter) | 9.6V 500 mAH Nicad Battery |
| Current Drain (Transmitter) | 150mA |
| Receiving Frequency | 72 MHz bands |
| Intermediate Frequency | 455 kHz |
| Output Torque (Servo FP-S148) | 3kg.cm |
| Operating Speed (Servo FP-S148) | 0.22 sec/60° |
| Operating Speed (Servo FP-S133) | 0.21 sec/60° |
The transmitter requires a 9.6V 500 mAH Nicad Battery.
The batteries should be charged for about 15 hours.
These switches reverse the direction of operation of the servos if the stick lever and servo movement are opposite.
Yes, the spring tension mechanism allows adjustment of the operating feel by removing the back cover and turning the screw.