airwave AWX 701-B Betriebshandbuch - Seite 14

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˙ IR Extender Transmitter:

(1) Power Supply

IR Receiver

(2)

(3 )Oscillator

(4 ) ASK Mixer

(5) TX Amp.

(6) Low Pass Filter

the unit Transmitter the data from IR signals

and converts the data to 418 MHz ASK RF

signals, then transmits data by RF signal. The

unit consists of (1) Power Supply, (2) IR

(3 )Oscillator,

Receiver,

TX Amp. & (6) Low Pass Filter.

: Using one 78L05 regulator to convert the 9V

DC to 5V DC.

: the unit converts the infrared ray signal of the

remote controller to digital data for ASK

modulator to do the ASK modulation.

generate 418MHz frequency.

: to modulate the digital data from IR

Receiver with the 418 MHz carrier

frequency as an ASK RF signal.

: to enhance the 418 MHz ASK RF signal and

send it out through antenna.

: to filter the possible second harmonic and

harmonic.

(4) ASK Mixer, (5)