10
KX-TGF350N/KX-TGF352N/KX-TGF353N/KX-TG572SK/KX-TGF380M/KX-TGF382M/KX-TGF383M/KX-TGFA30N/KX-TGFA30M
4.2.3.
Signal Flowchart in the Radio Parts
Reception
Base unit:
A voice signal from TEL line is encoded to digital data and converted into a 1.9GHz modulated radio signal by BBIC(IC501).
The RF signal, after which is amplified in BBIC, is fed to selected antenna.
Handset:
As for a handset RF, RF signal is received in one antenna.
BBIC down-converts to 864 kHz IF signal from RX signal and demodulates it to digital data "RXDATA".
BBIC (IC1) converts RXDATA into a voice signal and outputs it to speaker.
Transmission
Handset:
A voice signal from microphone is encoded to digital data and converted into a 1.9GHz modulated radio signal by BBIC(IC1).
The RF signal, after which is amplified in BBIC, is fed to an antenna.
Base unit:
As for a base unit RF, RF signal is received in two antennas.
BBIC (IC501) compares RF signal levels and selects the antenna to be used. Then BBIC down-converts to 864 kHz IF signal
from RX signal in the selected antenna, and demodulates it to digital data "RXDATA".
BBIC (IC501) converts RXDATA into a voice signal and outputs it to TEL line.
Содержание KX-TGF350N
Страница 83: ...83 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 85: ...85 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 87: ...87 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 90: ...90 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 94: ...94 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 96: ...96 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...
Страница 98: ...98 KX TGF350N KX TGF352N KX TGF353N KX TG572SK KX TGF380M KX TGF382M KX TGF383M KX TGFA30N KX TGFA30M Memo ...