对讲机制作与调试报告

电子产品安装与调试实践

摘要 (1)

Abstract (2)

第1章绪论 (3)

1.1 对讲机的意义 (3)

1.2 目的 (3)

1.3 章节安排 (3)

第2章基础软件技术介绍 (4)

2.1 proteus软件简介 (4)

2.2 Protel Dxp技术简介 (4)

2.2.1 Protel Dxp软件介绍 (4)

2.2.2 Protel Dxp基本技术 (4)

2.3章节小结 (5)

第3章设计方案 (6)

3.1 总体设计方案 (6)

3.2电路设计方案 (6)

3.2.1 音频接收电路设计 (7)

3.2.2对讲发射电路设计 (7)

3.3 本章小结 (8)

第4章基础硬件设计 (8)

4.1 D1800芯片 (8)

4.2 D2822芯片 (9)

4.3本章小结 (9)

第5章电路的调试与测试 (10)

5.1收音部分的调整 (10)

5.2对讲部分的调整 (10)

第6章检测结果及分析 (10)

第7章总结与展望 (11)

第8章谢辞 (12)

附录 (13)

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在现代通信中，对讲机是一种近距离的、简单的无线传输通信工具。目前，它广泛应用于生产、保安、野外工程等小范围移动通信工程中。

本套对讲机为中夏牌ZX2028对讲机，它是由接收部分和发射部分组成。接收部分采用直接接收的方式，采用LC振荡电路检波，检波后音频信号再由低频放大器放大，最后由耦合电容推动扬声器发声；发射时，由扬声器讲话音信号变成电信号后，再经低频放大电路、调制电路，最后将已调波从天线发送出去。

随着LED（发光二极管)、微处理器和激光二极管的不断发展，迎来了新的标识符号(象征学)和其应用的大爆炸，人们称之为“对讲机工业”。今天很少能找到没有直接接触过即快又准的对讲机技术的公司或个人。由于在这一领域的技术进步与发展非常迅速，并且每天都有越来越多的应用领域被开发，用不了多久对讲机就会象灯泡和半导体收音机一样普及，将会使我们每一个人的生活都变得更加轻松和方便。

关键字：对讲机，无线传输，放大电路

Abstract

In modern communication, walkie talkie is a wireless transmission communication tools close, simple. At present, it is widely used in production, security, field engineering and other small range of mobile communication engineering.

This set of interphone for summer brand ZX2028 intercom, which is composed of a receiving part and a transmitting part. The receiving part adopts direct receiving mode, using the LC oscillation circuit detection, detection after the audio signal and then amplified by the low frequency amplifier, finally by coupling capacitance speaker; launch, by the speaker sound signal into electrical signals, and then by the low-frequency amplification circuit, modulation circuit, finally the modulated wave from the antenna to send out.

With the development of LED (light emitting diode) and continuous development of the microprocessor and the laser diodes, ushered in the new identification symbols (symbology) big bang and its applications, known as "walkie talkie industry". A company or individual can rarely find no direct contact is quickly and precisely the walkie talkie technology today. Due to the progress and development of technology in this field very quickly, and every day there are more and more application fields are developed, it won't be long before the walkie talkie will be like lighting and semiconductor radio as the popularization, will make the life of every one of us has become more easy and convenient.

Keywords: walkie talkie, wireless transmission, amplification circuit