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内容:一本名为“用户手册”的
射频
测量入门教程由此拉开了编写的序幕…… 在这本书的前言中写到: “本手册将介绍很多关于频谱和网络分析的基础知识,我们希望KC901A协助您掌握
射频
测试的方法,这将非常有益于改善DIY,如果您已经熟悉
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测试,那么完全可以无视这些介绍,但请留意手册中的警示。”,手册的第二章介绍了仪器中各种缩写、符号的意义,例如: KC901A采用英文系统,并大量使用
射频
测试领域通用的英文缩写。,S参数是
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网络的散射参数。,Sab是指信号从b端口入射,经过
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网络之后,从a端口得到的出射量同入射量之间的幅度关系(在矢量分析中,还有相位关系)。
出几片有线电视放大器模块
twz562
14年11个月前
回复于
跳蚤市场
内容:引用第6楼jrcsh于2010-03-08 00:31发表的 :我作的这有线
射频
广播工程 主有2种 一种就是 放大和在线路点中平衡 有线视电视(数字和模拟)的信号值 另一程就是 使用自己的信号源,加入到
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广播线线路中去是不是就 接入 线路就行了 对接地要求高不 弱电系统对地很高的要求增益低的要求稍低一些,增益高的要求要高些,否则,带宽太宽,容易引起自激。
【开源】HX9500.02扫频仪试验电路图和程序
suyuping99
10年7个月前
回复于
仪器仪表
内容:控制板和
射频
板的设计与布板布线,其风格与KC901 的风格大相径庭,许多地方都缺仔细考量,不太协调。
Tektronix 496P频谱分析仪拆解
西葫芦
2年2个月前
回复于
拆机鉴赏
内容:2.9 RF DECK 绝大多数
射频
器件都装在底部,相比HP的频谱仪结构,这里看起来更像一个
射频
实验台,但检查信号路径的时候十分容易。
[jxs出品~~]RDA5820 FM收发一体机
玉颜州
10年3个月前
回复于
电子技术
内容:覆盖300米,这个不是大问题,对于60-120M的
射频
放大来说。
回 6楼(robbie) 的帖子
warmonkey
11年7个月前
回复于
科学技术学
内容:这只是吐槽辛苦程度,与是否应试教育无关大一搞火箭的时候,一个礼拜都是每天熬到3点钟,半个月通宵5次,就为了调一个
射频
组件
一体化等离子扬声器,稳定可靠
闲着会生病的
9年8个月前
回复于
高电压技术
内容:涉及到
射频
功率的情况下还是做个屏蔽机箱比较妥当。
求助:简易的大功率射频发射器的制作
87685302
14年10个月前
回复于
电子技术
内容:把微波炉的门开关改动一下 就可以变成真真正正的大功率
射频
发射器
请教关于远距离遥控器的问题
zx-46612
7年1个月前
回复于
电子技术
内容:引用 radio:遥控器加个
射频
功放和八木天线?
回 2楼(古人) 的帖子
改装pcp
12年11个月前
回复于
跳蚤市场
内容:还有两个光是散热器就二三十斤重的
射频
后级都没空去看…这里没什么人玩这个吗?
2016清理库房处理一些器材(一)
虎哥
8年8个月前
回复于
跳蚤市场
内容:引用 bg3qai:A-5 是什么继电器 看不清能切换
射频
负荷吗 这还真不知道,可以拿来当装饰品。
新坑:基于AD9361的手持监测侦察接收机
虎哥
7年3个月前
回复于
无线电
内容:最近同学们在制作
射频
板PCB,目前元件已经摆放好了,估计下周有希望发给厂里。
制作2.1kW电子管短波功放
UECMITSUI
2年11个月前
回复于
无线电
内容:C类操作证允许的最大功率是1kW,所以我在调试时会先使用
射频
电阻假负载😂。
自制了一个U盘形状的猴儿版的MSI2500 SDR
actionchen
4年6个月前
回复于
无线电
内容:可以解图,
射频
带宽才一百多k,同步轨道卫星,不用跟踪系统,对天线要求很低,出图是地球圆盘图 2200*2200的。
自制的单管小电台。。。。。。
北落师门
11年11个月前
回复于
无线电
内容:所以原文说用搭棚焊,
射频
线路跟平时的电路很不一样,每条线都要考虑电容和电感,如果楼主喜欢
射频
可以多看看这方面的书。
【903】关于KC903发布时间和有关事项的说明
虎哥
10年11个月前
回复于
会员海报
内容:为了满足大家好奇心,放一些初步的设想~~设想哈,仅供吐槽,一切以届时公布的正式资料为准 总共4张大电路板,其中主控制板一张,主
射频
板一张,通信板一张,选件板(中频板)一张。
出2个很重的射频功放
改装pcp
9年4个月前
回复于
跳蚤市场
内容:拆过不少
射频
功放,陶瓷级电路板的不多,功率管型号是M11L60,下面有紫铜板材帮助散热。
这个算不算永动机?
闪电行者
9年10个月前
回复于
极客DIY
内容:试试能不能做个天线接收宇宙间的电子
射频
干扰信号转化为电能?
找到一个开源的射频信号发生器,有没有朋友感兴趣一起做下?
kebalstar
3年3个月前
回复于
无线电
内容:感谢回复,仔细看了下手册,这颗芯片的
射频
输出是open collector的,低频下实际输出接近方波,看来想低频下谐波少,得找其他合适的芯片或者外置需要外置vco的芯片自己搭了。
等离子发动机
光谱
10年6个月前
回复于
喷气推进
内容:这么大功率
射频
功放。。。
真空技术:如何使用RGA搭建气体分析系统
Arutoria
2年7个月前
回复于
核技术与核仪器
极客DIY
内容:安装后会导致QMA底部元件与管内壁接触进而在使用时出现
射频
报错如果使用CF35短管来连接QMA探头应使其管内径>37mm才可以正常工作,因此需要订购最大连接管径为40mm的CF35短管这不是分辨率高低的问题
应急通讯1.5kw固态短波功放的制作
radio73
12年9个月前
回复于
无线电
内容:引用第18楼古人于2012-03-30 22:24发表的 : 来求助一下各位,要做500M的
射频
功放,应该用哪种磁环,谢谢!
海量清仓处理,有盖格管、正比计数器、音频分析仪、电源等--活动已结束,请勿再汇款
虎哥
11年4个月前
回复于
跳蚤市场
内容:04-铝合金腔体 仪表局某型时钟源的
射频
屏蔽体。
拆两台【自动天调】(13.56MHz等离子弧加热阻抗匹配网络)
RodTech
10年1个月前
发表于
无线电
内容:真空继电器,用于带载切断
射频
高压 相位、功率探测部分 电机驱动部分,使用vishay spectrol精密继电器,在伺服系统中非常常见的高端货。
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