OPERATIONAL DESCRIPTION

FCC ID: NLB49013TX

Operational Description

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FCCID_634849

Dickie Spielzeug GmbH & Co. KG; Module 49013TX Circuit Description (With reference to Circuit Diagram and Blockdiagram) The circuit of module 49013TX is basically divided in four parts: 1. Oszillator (carrier frequency) 2. Modulation of signal 3. RF amplifier 4. Qutput circuit with antenna The Oszillator unit produces an carrier frequency of 49,864 MHz by using a quartz crystal, which is coupled via a transistor. The modulation is gained by an IC, beeing operated by the user through the switches. Carrier and modulated signal are superposed at the base of a transistor, which amplifies the modulated carrier. The output circuit, beeing realised by capacitors and inductances matches the RF amplifier to the antenna providing RF—power being transfered to the antenna.


Document Created: 2006-03-03 14:30:19
Document Modified: 2006-03-03 14:30:19
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