Operational Description

FCC ID: L2546695B

Operational Description

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FCCID_971136

FCC ID: L2546695A Circuit Description The 49.86MHz crystal oscillator drives the base of Q3 the final/buffer amplifier. The modulation provided by transistors. The output of Q3 has the matching network consisting of C26, C27 and L3, L4 that limit the harmonic content and effect the proper coupling of the antenna to the output stage. Antenna, Ground and Power Source The antenna consists of a 16cm long Metal antenna. There is no external ground connection. The ground is only that of the printed circuit board. Electric current is supplied by a 9 Volt (“6F22” size battery x 1) primary battery Operation Descriptions The transmitter is a remote control toy operating at 49.86MHz band. The transmitter is powered by a 9V battery (“6F22” size battery x 1) and the transmitting frequency is crystal controlled. There are 2 buttons to control the forward reverse motor and director of movement. The operation is achieved by different combinations of form pulse modulating signal on the 49.86MHz carrier frequency. Remarks: The transmitter is a 2 button transmitter. The EUT continues to transmit while button is being pressed. It is button transmitter, Modulation by transistors; and type is Pulse modulation.


Document Created: 2019-10-25 19:48:00
Document Modified: 2019-10-25 19:48:00
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