深圳市煜焜科技有限公司 已通过实名认证

<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US> 

<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">     首先我们要知道对讲机频率范围规定<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>.<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">根据中国无线电管理委员会规定，在日常对讲机的使用中，对讲机频率一般做如下划分：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt"> <***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">**对讲机：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>V<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">段<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>136-174MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>U<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">段<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>400-470MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；业余用：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>433MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；集群用：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>800MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；武警公安用：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>350MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；海岸用：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>220MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>900MHZ/180MHZ<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">；<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt"> <***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">公众对讲机（民用对讲机）：<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>409-410MHZ.

<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">   然后我们还要根据传播环境的分类（地形和地物）来进行分析，地形基本就是平原，丘陵，和山地。正常情况下<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US><***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'" lang=EN-US><***N lang=EN-US>无线对讲机<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">在平原的通信距离和质量是**的。地物的话基本就是市区、郊区和开阔地。市区有高大密集的建筑物，烦躁的噪音，噪音会严重影响低频带的信号质量，所以一般的低频带信号的<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US><***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'" lang=EN-US><***N lang=EN-US>对讲机<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">不能穿透建筑物进行直线传播，只能绕着建筑物进行，所以大大影响了通话距离和质量。在这种情况下建议您使用<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>E-JOY LS3800<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 9pt; mso-ascii-font-family: Arial; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt">高频段对讲机。郊区虽然建筑明显减少，但是比起农村和田野的话，其频率段还是要求选择高端的为好。农村的选择相对要求低点，因为一般的公众对讲机在空旷的地方传播距离还是比较远的，所以在选择对讲机的时候**是根据相应的环境情况下进行购买。

<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US> 

<***N style="FONT-FAMILY: Arial; FONT-SIZE: 9pt; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-size: 10.0pt" lang=EN-US>---深圳E-JOY对讲机www.szejoy.cn