Category: RF
![WattUp – RF based Wireless Charging at a Distance WattUp – RF based Wireless Charging at a Distance](https://www.electronics-lab.com/wp-content/uploads/2018/01/dims.jpg)
WattUp – RF based Wireless Charging at a Distance
Recently, many big companies such as Samsung have developed wireless chargers which work by induction. These chargers usually consist of a station which needs to be in contact with the device in order to charge. The station defeats the purpose of being able to move and walk while still...
Continue Reading![Changing Hospital Waiting Rooms with RFID Technology Changing Hospital Waiting Rooms with RFID Technology](https://cdn-images-1.medium.com/max/1200/1*c6Lb0qaU6zPvbfCKi8US3g.jpeg)
Changing Hospital Waiting Rooms with RFID Technology
Engineers at Cornell university have created a new system for measuring vitals, which could revolutionize hospital experience for everybody. Usually, getting sick means having to go to the hospital which because of today´s procedures takes almost all your day (if not more), and most of...
Continue Reading![ESP8266 WiFi Analyzer ESP8266 WiFi Analyzer](https://www.electronics-lab.com/wp-content/uploads/2017/12/FLEDTTAJ08EJ0IF.MEDIUM.jpg)
ESP8266 WiFi Analyzer
This instrucatables show how to make an ESP8266 version WiFi Analyzer clone. WiFi Analyzer is a handy app in Android, it help to visualize the WiFi signal information around you. It is very useful for helping select a right channel for setting a new AP. If you selected a channel that...
Continue Reading![Tiny UHF Tracker Transmitter Tiny UHF Tracker Transmitter](https://www.electronics-lab.com/wp-content/uploads/2017/12/FCPEPFFJB6U71K3.SMALL_.jpg)
Tiny UHF Tracker Transmitter
TomTechTod @ instructables.com writes: This is a little circuit that could be used to track an object up to 400m. It is essentially an SAW stabilized OOK modulated RF transmitter. The modulation is done with two low frequency ultra low power oscillators that activate the transmitter...
Continue Reading![xaVNA – A low cost two port Vector Network Analyzer xaVNA – A low cost two port Vector Network Analyzer](https://www.electronics-lab.com/wp-content/uploads/2017/11/all-scaled-1024x768.jpg)
xaVNA – A low cost two port Vector Network Analyzer
xaVNA is a simple and cheap vector network analyzer that allows you to easily tune up antennas, filters, and amplifiers by plugin it to USB. It is able to display smith charts/graphs on the including PC software. The main board connects to a PC through usb and communicates via a...
Continue Reading![Homemade 6 GHz FMCW radar Homemade 6 GHz FMCW radar](https://www.electronics-lab.com/wp-content/uploads/2017/10/xfinished.jpg.pagespeed.ic_.dffTjlzMsr-1024x576.jpg)
Homemade 6 GHz FMCW radar
Henrik Forstén has a nice build log on his newest version of this homemade 6 GHz FMCW radar: Frequency Modulated Continuous Wave (FMCW) radar works by transmitting a chirp which frequency changes linearly with time. This chirp is then radiated with the antenna, reflected from the...
Continue Reading![Teardown and experiments with a Doppler microwave transceiver Teardown and experiments with a Doppler microwave transceiver](https://www.electronics-lab.com/wp-content/uploads/2017/09/picture-xbandtransceiver-600.jpg)
Teardown and experiments with a Doppler microwave transceiver
Kerry Wong did a teardown of Microsemi’s C900502 X-band planar transceiver: I got a couple of Microsemi’s C900502 10.525 GHz X-band Doppler radar motion sensors a while ago. This batch was made in UK and had “UK patents 2243495 and/or 2253108 apply” printed on the case. I have...
Continue Reading![SeaTalkie keeps you SAFE during water sports SeaTalkie keeps you SAFE during water sports](https://www.electronics-lab.com/wp-content/uploads/2017/07/d8911a32a17896d0a5100df2fc2af8ad_original-638x1024.png)
SeaTalkie keeps you SAFE during water sports
John Mak @ kickstarter.com tipped us with his latest project and he asks for our support. SeaTalkie is an innovative waterproof walkie talkie designed for water sports. Especially for CHILDREN playing at crowded beaches. SeaTalkie connecting in UHF radio band. Thus SeaTalkie can...
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