aprs 实验室

揭开奥克斯空调“黑心管”内幕
字号显示：大 中 小　　2007-07-10 12:35:00　　来源：南国早报
　　连接奥克斯空调内外机的管子是空调制冷的“桥梁”。但现在有些空调比如在“搬家”时，整条管子不能再利用。这是为什么？知情人士近日向记者抖出惊人黑幕：不少低价位的空调产品以廉价铜铝管替代全铜管，在宣传时笼统称为铜管或连接管
　　事件 消费者投诉“黑心管”
　　提示：知名空调也以铝替铜，很不应该。
　　6月13日，来自柳州的王女士向记者反映，最近她在柳州国美电器购买了一款奥克斯品牌空调。令她失望的是，所买空调的连接管是铜铝管，即只有管子两端约10厘米的长度属于铜管，其余约2.8米的长度均为铝管。
　　在行业内，此类铜铝管被称为“黑心管”。王女士说，如果不是空调安装师傅在拆机时道出真相，她还不知道厂家配的连接管是“铜铝管”。王女士原先以为买了铝管空调，顶多“档次”低一些，当时并不在意，可在使用的时候，空调制冷效果不是很好。安装师傅说，空调厂家配的连接管是铜铝管，很可能是这根管子出了问题。

打开软件，点左下角的钥匙

点增加帐号

选择通用向导的Basic

帐号名称就是电话号码比如888

帐号就是电话号码比如888

服务器输入www.taozhengbo.com

密码输入密码比如888

点保存，可以看到注册成功变绿色就可以打电话了

软件功能：

渊源

OpenSIPS(Open SIP Server) fork自大名鼎鼎的OpenSER(Open SIP Express Router)。后来由于开发者的分歧,OpenSER分裂为两个项目,OpenSER因为商标问题改名为Kamailio,另外一些开发者fork了 OpenSER成立了OpenSIPS项目。目前,OpenSIPS和Kamailio差别并不大。

安装

添加OpenSIPS官方源

编辑/etc/apt/source.list,添加

deb http://apt.opensips.org/ testing main

添加源认证密钥
wget http://apt.opensips.org/key.asc
apt-key add key.asc

更新并安装OpenSIPS,使用postgresql作为后端数据库

#apt-get update
#apt-get install opensips opensips-postgres-module

8 pic in zip

Last weekend I was browsing the internet for radio circuits and came across an interesting design I've never seen before, nicknamed the Ten Minute Transmitter.  The design apparently originated in 1996 in an amateur radio club QRP publication.  The name originates since the original author claimed he built this transmitter and make a QSO with it in just 10 minutes time.  Impressive!

When I was initially tinkering with this circuit, it bothered me that I didn't include a resistor for the IRF510 bias.  When I added in a bias resistor the amplified signal was lost, so I got rid of it.  In general, a bad idea.  It turns out that if I spent some extra time reading the data sheet I would have noticed that the gate voltage bias for the IRF510 should be between 2 - 4v.

based on a document from Clint Turner, KA7OEI

Because this is a software-defined radio and due to ongoing modifications/improvements of the software and hardware, the specifications continue to improve!

db4ple edited this page 20 days ago · 27 revisions

 Pages 22

This document is useful if you are looking for a very simple guide how to operate the mcHF: