After Sales Technical Documentation NHA–2 Series Transceiver Chapter 3 TRANSCEIVER OVERVIEW Original, 43/96
NHA–2 After Sales Transceiver Overview Technical Documentation CHAPTER 3 – TRANSCEIVER OVERVIEW Contents Introduction Block Diagram Power Distribution System Software Page 3–2 Page 3–3 Page 3–3 Page 3–4 Page 3–4 Original, 43/96
After Sales NHA–2 Transceiver Overview Technical Documentation Introduction The NHA–2 series is an advanced analog handportable cellular telephone for operation on the E–AMPS cellular system. The design is fully compatible with the AMPS Mobile Station / Land Station specification. The telephone contains many advanced user facilities and is designed for ease of maintenance. The transceiver electronics consists of radio module (baseband and RF blocks) and display module.
NHA–2 After Sales Transceiver Overview Technical Documentation The RF block is designed for handportable phone which operates in AMPS system. the purpose of RF block is to receive and demodulate the radio frequency signal from the base station and to transmit a modulated RF signal to the base station. See more detailed description from baseband and RF block diagrams. Power Distribution The power supply is based on the ASIC circuit MUUMI.
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