
Oceania DX Contest - Wireless Institute of Australia
2020年9月5日 · In each contest there are various single operator, multiple operator and short wave listener (SWL) categories. A report detailing the results for the current year is available on the contest website.
哈罗CQ火腿社区 - QSL卡展板 - 转: QSL卡片的正确填写方法 (包括SWL …
2023年5月2日 · 卡片分收听卡(swl台)和直接通信台两种。 卡片的纸张、图案和套色,并没有统一的要求,但必须具有下列内容: (1)自己电台的呼号:一般用放大的印刷字体、变形字体等,正规醒目地印在卡片正面中心,根据艺术设计,也可偏于某一例。
干货|什么是WLL?SWL?MBL?SF?
SWL:安全工作载荷 (Safe Working Load) 一件吊装设备在具体作业条件下进行负荷物的提升、下降或悬吊操作时所允许承载的最大负荷值或质量(应得到专业人士的认可)。吊装操作与吊装设备管理规定(LOLER)要求必须在设备上标注安全工作载荷,而且此信息还要 ...
January - February 2022 - Wireless Institute of Australia
As a keen shortwave listener (SWL) in the mid-1960s, I entered the 1963 Remembrance Day Contest. Bands full of stations – curiously intoxicating. Submitting a log under my WIA- assigned SWL No. – L3158 – I was chuffed to score a not too shabby 243 points (AR, Dec 1963, p.11).
The Wireless Institute of Australia - wia.org.au
2024年11月3日 · SWL Contest 2025 For SWLs interested in medium and shortwave broadcast DX, you may be interested to learn about a dedicated SWL contest taking place next year. The contest will start on the 1st of January 2025 and finish on the 28th of February 2025. The categories include the 522 to 1710 kHz medium wave band only,
哈罗CQ火腿社区 - DX通信 - 短波收听(SWL)简介 - Powered by …
2021年9月4日 · SWL是英文Shortwave Listener的简称,即短波收听爱好者,他们是业余无线电这一爱好的特殊参与者。 这一类爱好者与普通的业余无线电爱好者一样努力精进,他们学习无线电技术、改良和制作更好的天线和收信机和研究传播规律,希望能够接收到更多更远的信号。 但是,与普通的业余无线电爱好者不同的是,他们选择不进行无线电发射,而是仅仅收听其他业余无线电爱好者的通联,并向他们寄去收听确认卡片(SWL卡片),以期能得到他们的确认。 SWL并不 …
What is Safe Working Load (SWL) and Working Load Limit (WLL)
2023年7月28日 · Safe Working Load (SWL), sometimes also referred to as Normal Working Load (NWL), is the maximum force or load that a piece of lifting equipment, such as a crane, winch, hoist, or an accessory, can safely handle without the risk of failure or breaking.
What is Safe Working Load (SWL Meaning) - HSEWatch
2024年2月23日 · Safe Working Load (SWL) Definition: The Safe Working Load is the maximum load that a piece of equipment, such as a rope, chain, or lifting sling, can handle safely under normal operating conditions without risking failure. Key Features: Safety Factor: SWL is calculated by dividing the Breaking Strength by a safety factor (SF).
WIA 组件 - Windows drivers | Microsoft Learn
2023年5月11日 · wia 服务是系统提供的组件,用于与图像处理应用程序和 wia 微型驱动程序通信。 WIA 服务是下表中列出的 COM 接口的集合,所有这些接口均在Microsoft Windows SDK文档中介绍。
Estimating Winch SWL via WLL and FOS | True Geometry’s Blog
2024年10月19日 · This calculator provides the calculation of Safe Working Load (SWL) of a winch based on its Working Load Limit (WLL) and desired Factor of Safety (FOS). Explanation Calculation Example: The Safe Working Load (SWL) of a winch is the maximum load that it can safely lift and handle.