Operational Description

FCC ID: QEABOAT7T

Operational Description

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FCCID_1031179

FCC ID: QEABOAT7T Circuit Description The 27.145MHz crystal oscillator drives the base of Q1 the final/buffer amplifier. The modulation provided by IC. The output of Q2 has the matching network consisting of L3, L4 and C4, C5 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 31cm 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 27.145MHz 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 27.145MHz 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 IC; and type is Pulse modulation.


Document Created: 2019-11-12 10:25:32
Document Modified: 2019-11-12 10:25:32
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