是德N9342C/43C/44C 手持式频谱分析仪请注意：安捷伦电子测量仪器部已经转为是德科技有限公司。

关于此方面详细信息，请访问用户手册Notices© Keysight Technologies, Inc. 2012-2017No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Keysight Technologies, Inc. as governed by United States and international copyright laws. Trademark AcknowledgmentsManual Part NumberN9342-90003EditionEdition 5, October2017Printed in ChinaPublished by:Keysight TechnologiesNo 116 Tianfu 4th street Chiengdu, 610041 C hina WarrantyTHE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, KEYSIGHT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 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Do not proceed beyond aWARNING notice until the indicatedconditions are fully understood andmet.目录1简介介绍 2主要功能 2前端面板概述 5顶部面板概述 6显示屏标注 72使用指南检查货品包装和装箱清单 12电源要求 13交流电源线规格 14安全须知 15供电要求 17静电防护 17安装电池 18查看电池信息 18电池充电 18首次开机 20仪器开机 20准备工作 21设置界面 21检查设备信息 21设置开关机/预设置 21显示和音频调整 22通用系统设置 22定时开关机 23IP设置 23外部输入 23系统信息 24添加选件 24显示错误信息 25进行校准 25数据安全 26固件升级 26探头供电输出 26HSA PC 软件 27默认出厂设置 28基本测量 29联系是德科技 313开始测量测量多个信号 34同一屏上比较信号 34测量低电平信号 39减小输入损耗 39改善频率分辨率和精确度 44测量信号失真 45识别由频谱仪产生的失真 45三阶交调失真 48功率测量 50占用带宽 50邻道功率泄漏比 50信道功率 51脉冲响应传输测量 53测量低通滤波器阻带衰减 55反射测量 57使用反射测量方法测试回波损耗 59使用USB功率探头作功率测量 60使用USB功率探头作平均功率测量 62使用USB功率探头作峰值功率测量 64功率计设置 66频谱监测 69解调FM调频信号 71解调分析 73AM/FM解调分析 73ASK/FSK解调分析 75通道扫描仪 79扫描最强/最弱的N个信道 79序列扫描 80通道扫描设置 82电缆和天线测试 84测试前的准备 84反射测量 85故障定位测量 85文件 86查看文件列表 86保存文件 87保存用户状态文件 88删除文件 89加载文件 894按键说明Amptd 92参考电平 92衰减 92预放 92刻度 92刻度类型 93Y 轴单位 93高灵敏度 93参考偏移量 93幅度修正 94电阻 95PSD功能 95Display 96刻度线 96Y轴刻度 96显示线 96BW 97分辨率带宽 97视频带宽 97VBW/RBW 98平均类型 98Sweep 100扫描时间 100扫描 101单次扫描 101触发 101时间选通 102扫描设置 103Enter 105退出/清除 106频率 107自动调谐 107中心频率 107起始频率 107终止频率 107中心频率步进 108信道标准 108频率偏移 108低频通道（选件BB1） 108标记 109标记 109标记的轨迹 109模式 109标记移到 111功能 112标记列表 113读出 113放大/缩小 113差量参考 114全部关闭 114标记记录 114Peak 115搜索峰值 115左次峰值 115右次峰值 115峰峰值搜索 115连续峰值 115峰值表 116峰值标准 116测量 117占用带宽 117邻道功率比 117信道功率 119频谱监测 120频谱模板（SEM） 123模式 126频谱分析 126跟踪发生器 126功率计 129测量管理器 134解调分析 134天馈线测试 135通道扫描仪 138 Span 144扫宽 144全扫宽 144零扫宽 144上次扫宽 144Trace 145轨迹 145刷新 145最大值保持 145最小值保持 146静止 146空白 146检波 146平均次数 147平均时间 148重新平均 148Limit 149极限线 149极限模板 149设置极限模板 149极限类型 149蜂鸣器 150保存模板 150调用模板 1505错误信息错误信息表 1526按键结构图BW 158Sweep 158FREQ 159LIMIT 159MARKER 160Peak 161File/Mode - 任务序列 162Mode - 跟踪发生器 163Mode - 调制分析（AM/FM） 164Mode - 调制分析（ASK/FSK） 165 Mode - 天馈线测试 166Mode - 功率计 167Meas(1) 168Meas(2) 169Span 169System 170Trace 171简介1简介1简介介绍2介绍是德N934xC 是手持式射频频谱分析仪，其频率范围从100 kHz 覆盖到20 GHz。