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7
KX-TG6700B/KX-TG6702B/KX-TGA670B
4 Technical Descriptions
4.1.
FHSS Description
4.1.1.
Frequency
The frequency range of 5.76 GHz-5.84 GHz is used. Transmitting and receiving channel between Base Unit and Handset is same
frequency. Refer to
4.1.2.
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 tele-
phone system that can use multiple portable unit simultaneously. The explanation of this system is mentioned below. This sys-
tem 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 10 ms. 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 10 ms
according to Hopping table. Also the purpose to make spectrum spread is to reduce power density per time and per band.
Содержание KX-TG6700B - Cordless Phone - Operation
Страница 2: ...2 KX TG6700B KX TG6702B KX TGA670B ...
Страница 6: ...6 KX TG6700B KX TG6702B KX TGA670B 3 Specifications ...
Страница 27: ...27 KX TG6700B KX TG6702B KX TGA670B 4 8 2 Power Supply Circuit Voltage is supplied separately to each block ...
Страница 36: ...36 KX TG6700B KX TG6702B KX TGA670B 4 11 Signal Route Each signal route is as follows ...
Страница 37: ...37 KX TG6700B KX TG6702B KX TGA670B RF part signal route ...
Страница 38: ...38 KX TG6700B KX TG6702B KX TGA670B 5 Location of Controls and Components 5 1 Controls 5 1 1 Base Unit ...
Страница 41: ...41 KX TG6700B KX TG6702B KX TGA670B 6 1 2 Connecting the Telephone Line Cord ...
Страница 42: ...42 KX TG6700B KX TG6702B KX TGA670B 6 1 2 1 If you subscribe to a DSL service ...
Страница 45: ...45 KX TG6700B KX TG6702B KX TGA670B 7 Operation Instructions 7 1 Symbols Used in These Operating Instructions ...
Страница 47: ...47 KX TG6700B KX TG6702B KX TGA670B ...
Страница 48: ...48 KX TG6700B KX TG6702B KX TGA670B 7 2 2 Programming Using the Direct Commands ...
Страница 49: ...49 KX TG6700B KX TG6702B KX TGA670B ...
Страница 50: ...50 KX TG6700B KX TG6702B KX TGA670B 7 3 Error Messages ...
Страница 52: ...52 KX TG6700B KX TG6702B KX TGA670B ...
Страница 53: ...53 KX TG6700B KX TG6702B KX TGA670B ...
Страница 54: ...54 KX TG6700B KX TG6702B KX TGA670B ...
Страница 74: ...74 KX TG6700B KX TG6702B KX TGA670B 10 1 9 5 RF DSP Interface Signal Wave Form Test Burst Mode ...
Страница 75: ...75 KX TG6700B KX TG6702B KX TGA670B Test Burst Mode ...
Страница 82: ...82 KX TG6700B KX TG6702B KX TGA670B 11 1 2 Handset ...
Страница 83: ...83 KX TG6700B KX TG6702B KX TGA670B 11 1 3 Charger Unit ...
Страница 84: ...84 KX TG6700B KX TG6702B KX TGA670B 11 2 Fix the LCD and the Receiver Guide to the Main P C Board Handset ...
Страница 95: ...95 KX TG6700B KX TG6702B KX TGA670B Memo ...
Страница 99: ...99 KX TG6700B KX TG6702B KX TGA670B Memo ...
Страница 108: ...108 KX TG6700B KX TG6702B KX TGA670B Memo ...
Страница 118: ...118 KX TG6700B KX TG6702B KX TGA670B 15 3 Explanation of IC Terminals RF Part 15 3 1 IC701 ...
Страница 119: ...119 KX TG6700B KX TG6702B KX TGA670B 15 3 2 IC801 Backside Terminal GND ...
Страница 120: ...120 KX TG6700B KX TG6702B KX TGA670B 15 3 3 IC851 Backside Terminal GND ...
Страница 124: ...124 KX TG6700B KX TG6702B KX TGA670B 16 3 Cabinet and Electrical Parts Charger Unit ...
Страница 125: ...125 KX TG6700B KX TG6702B KX TGA670B 16 4 Accessories and Packing Materials 16 4 1 KX TG6700B ...
Страница 126: ...126 KX TG6700B KX TG6702B KX TGA670B 16 4 2 KX TG6702B ...
Страница 127: ...127 KX TG6700B KX TG6702B KX TGA670B 16 4 3 KX TGA670B ...