After Sales Technical Documentation THX–4 Series Transceiver Chapter 3 TRANSCEIVER OVERVIEW Original, 09/94
THX–4 Transceiver Overview After Sales Technical Documentation CHAPTER 3 – TRANSCEIVER OVERVIEW CONTENTS Page No Introduction 3–3 System Module 3–3 Display Module 3–3 List of Figures Figure 1: RF Block Diagram 3–4 Figure 2: Baseband Block Diagram 3–5 Page 3–2 Original, 09/94
After Sales THX–4 Technical Documentation Transceiver Overview Introduction The THX–4 series is an advanced analogue handportable cellular telephone for operation on the E–TACS cellular system. The design is fully compatible with the TACS Mobile Station / Land Station specification. The telephone contains many advanced user facilities and is designed for ease of maintenance. The transceiver consists of two modules: a system module and a display module.
LNA SAW MIXER 45 MHz 450 kHz IF CHIP 25 kHz bw DISC/ RSSI ANT SWITCH 933 MHz 33 MHz bw DAF 25 kHz bw RSSI EXT ANT 44.55 MHz 15 dB COUPLER 14.
After Sales Technical Documentation THX–4 Transceiver Overview Figure 2: Baseband Block Diagram Original, 09/94 Page 3–5
After Sales THX–4 Technical Documentation Transceiver Overview [This page intentionally left blank] Page 3–6 Original, 09/94
