9 DESCRIPTION
9.1. Frequency
The frequency range of 5.76GHz-5.84GHz is used. Transmitting and receiving channel between Base Unit and Handset is same
frequency. Refer to Frequency Table (P.45).
9.2. FHSS (Frequency Hopping Spread Spectrum)
This telephone is using an IC chip which has similar specification to WDCT (World Digital Cordless Telephone) and is the
telephone system that can use multiple portable unit simultaneously. The explanation of this system is mentioned below. This
system uses a Time Division Multiple Access/Time Division Duplex (TDMA/TDD) scheme:
transmitting and receiving frequencies of the Base Unit and Handset are shared in the same frequency. The construction of
RX/TX frequency data is shown below. It consists of 4 slots from the Base Unit to the Handset, and 4 slots from the Handset
to the Base Unit, total 8 slots in 10ms. By this slot system, simultaneous air link and communication between 4 Handsets and
the Base Unit can be realized. One communication between Handset and the Base Unit is done by one slot from the Base Unit
to Handset, and another slot from Handset to the Base Unit.
DSS makes spectrum spread by multiplying carrier signal by PN code. The purpose to make spectrum spread is to reduce
power density per time and per band. On the other hand, FHSS makes spectrum spread by changing channel every 10ms
according to Hopping table. Also the purpose to make spectrum spread is to reduce power density per time and per band.
48
KX-TG5671BXS / KX-TGA560BXS
Содержание KX-TG5671BXS
Страница 7: ...4 1 3 Battery Level 4 1 4 Panasonic Battery Performance 7 KX TG5671BXS KX TGA560BXS ...
Страница 8: ...4 2 Location of Controls 4 2 1 Base Unit 8 KX TG5671BXS KX TGA560BXS ...
Страница 9: ...4 2 2 Handset 9 KX TG5671BXS KX TGA560BXS ...
Страница 10: ...4 3 Displays 4 3 1 Display Items 4 3 2 Troubleshooting Handset LCD 10 KX TG5671BXS KX TGA560BXS ...
Страница 11: ...4 4 Settings 4 4 1 Connecting the AC Adaptor and Telephone Line Cord 11 KX TG5671BXS KX TGA560BXS ...
Страница 13: ...4 4 2 2 Programming Using the Direct Commands 13 KX TG5671BXS KX TGA560BXS ...
Страница 14: ...4 4 3 Dial Lock 14 KX TG5671BXS KX TGA560BXS ...
Страница 15: ...4 5 Troubleshooting 15 KX TG5671BXS KX TGA560BXS ...
Страница 16: ...16 KX TG5671BXS KX TGA560BXS ...
Страница 17: ...17 KX TG5671BXS KX TGA560BXS ...
Страница 20: ...6 HOW TO REPLACE THE HANDSET LCD 20 KX TG5671BXS KX TGA560BXS ...
Страница 31: ...7 9 5 RF DSP Interface Signal Wave Form Test Burst Mode 31 KX TG5671BXS KX TGA560BXS ...
Страница 32: ...Test Burst Mode 32 KX TG5671BXS KX TGA560BXS ...
Страница 70: ...17 2 Power Supply Circuit Voltage is supplied separately to each block 70 KX TG5671BXS KX TGA560BXS ...
Страница 73: ...18 SIGNAL ROUTE Each signal route is as follows 73 KX TG5671BXS KX TGA560BXS ...
Страница 74: ...Each signal route is as follows RF part signal route 74 KX TG5671BXS KX TGA560BXS ...
Страница 77: ...21 EXPLANATION OF IC TERMINALS RF PART 21 1 IC701 77 KX TG5671BXS KX TGA560BXS ...
Страница 78: ...21 2 IC801 Backside Terminal GND 78 KX TG5671BXS KX TGA560BXS ...
Страница 79: ...21 3 IC851 Backside Terminal GND 79 KX TG5671BXS KX TGA560BXS ...
Страница 84: ...24 CABINET AND ELECTRICAL PARTS BASE UNIT 84 KX TG5671BXS KX TGA560BXS ...
Страница 87: ...27 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES 27 1 Base Unit 27 2 Handset 87 KX TG5671BXS KX TGA560BXS ...
Страница 99: ...Memo 99 KX TG5671BXS KX TGA560BXS ...
Страница 104: ...Memo 104 KX TG5671BXS KX TGA560BXS ...
Страница 110: ...Memo KX TG5671BXS KX TGA560BXS 110 ...
Страница 114: ...114 KX TG5671BXS KX TGA560BXS A I N KXTG5671BXS KXTGA560BXS ...