If there’s one instrument that hams and other radio enthusiasts covet, it’s the venerable Bird 43 Thruline wattmeter. The useful RF tool has barely changed in the nearly 70 years since it was ...

Since we track every single watt of energy we produce (we have such a wattmeter), we can tell you that as Sept. 11, 2024, we ...

[Tech Minds] is lucky enough to live within view of QO-100, ham radio’s first geosynchronous satellite, so this sensor will be teamed up with an ADC and a Raspberry Pi to create a wattmeter with ...

Voltage and potential transformers can be used with voltmeters for voltage measurements, or with current transformers for wattmeter or watt-hour meter measurements. Voltage transformers and potential ...

It shows the current speed, battery level, trip and total miles, wattmeter (displays motor output in real-time), and assist level. The control console is simple as well, with plus and minus ...

There is also a full LCD display, which doubles-up as a speedometer, wattmeter, and odometer, plus a powerful integrated headlight. A rear light and brake lights are also attached to a sturdy rear ...

在联合国儿童基金会的支持下，瓦努阿图选择与澳大利亚Swoop Aero和德国Wingcopter这两家无人机公司合作，将于今年12月开始进行为期三个月的试点运输。该实验的第一阶段从12月3日至7日，重点为一个特定的村庄运送医疗物资，第二阶段暂定于2019年1月，两家公司的无人机将供应物资给三个岛屿的医疗设施。