Inventor and Honorary Radio Society of Great Britain (RSGB) Member, Trevor Baylis of London, died March 5 after a long illness. His wind-up radio made communication available to people across Africa who had no access to electricity. When Baylis learned of the spread of AIDS in Africa in 1991, he set about developing his spring-powered wind-up radio that did not require batteries or other power sources.
His first working prototype ran for 14 minutes. The following year, BayGen Power Industries was set up in Cape Town, South Africa, employing disabled workers to manufacture the freeplay wind-up radio. A newer model, which debuted in 1997, was designed especially for the western consumer market and could run for up to an hour after only 20 seconds of winding. That radio included a solar panel.
Baylis was awarded Officer of the Most Excellent Order of the British Empire in 1997, and then Commander of the Most Excellent Order of the British Empire in 2015.
Source:ARRL
Antenna
Dual Band Moxon Antenna 10m/6m
Dual band Moxon antenna (2 + 3 elements) for 10m and 6m, ideal for Sporadic-E or DX. Dualband Moxon Antenna for 10 and 6m Not only for Sporadic-E QSOs... Read more
Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band.
Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band. Read more
W3EDP Antenna
In the 1936 March issue of QST, Yardley Beers, W3AWH, described an antenna designed by his friend, Mr. H. J. Siegel, W3EDP. The design was based on th... Read more
New Hy-Gain Dual Band 4 Element 6/4m
DB-46M8EL New Hy-Gain Dual Band 4 Element 6/4m Yagi Designed by Justin Johnson G0KSC renowned antenna designer and known for his LFA and other uniqu... Read more
Tuner free directional HF Multiband Field Expedient Antenna kit
Description: This 10-80 Meter Multiband FEA (Field Expedient Antenna) Kit enables you to customize your Alpha Multiband HF Antenna. The kit can then b... Read more
Cushcraft R9 covers 6,10,12,15,17,20,30,40,80 Meters
This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. Cushcraft achieved a majo... Read more
Omni-Directional – Circularly (Mixed) Polarized Antenna for 144 MHz / VHF / 2 Meters.
Introduction and Background This is an experimental project that may lead to further development in the future, but even as presented below, it does w... Read more
VHF
VHF 144MHZ PREAMPLIFIER WITH 100W VOX
VHF 144MHZ PREAMPLIFIER VHF 144MHz preamplifier ( 2 meters ) with VOX circuit. You can use it with 100W. Coaxial relè on board. Perfect for EME, SAT,... Read more
AMSAT/Vanderbilt RadFXSat-2/Fox 1E Set to Launch
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Antenna Shootout, UHF Edition by W3BC
“We’re at it again! Before the August 17 meeting, we invaded the large parking lot we use as an antenna test range once again. This time, we bro... Read more
DIY Satellite Antenna DU1AU
A satellite antenna can be made from 3 mm copper or aluminum elements, PVC boom, and some parts you may already have at home. To download the plan (hi... Read more
BCH-220 Handheld Radio
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Amateur Radio Guide to Digital Mobile Radio (DMR) by W2XAB
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Yaesu FT-65R – VHF/UHF – 5 W
Yaesu FT-65R The Yaesu FT-65R is a rugged, lightweight and compact VHF/UHF handheld transceiver that offers up to 5W of output power along with lower... Read more
Review
Review of Radioddity GD-77 DMR Tier 2 Handheld
Dual Band & Dual Time Slot: VHF 136-174MHz, UHF 400-470 MHZ; GD-77 has both Tier I & II and is compatible with Motorola and other DMR radios.... Read more
Kenwood TH-D74 – D-Star and Analog FM audio with EQ off / on 4K
TH-D74 “In this video, we are testing the integrated audio parametric equalizer of the Kenwood TH-D-74. In D-Star and in analog FM. Can you hear... Read more
Raspberry Pi 3 projects for Ham Radio with 7 inches touchscreen
Raspberry Pi for Ham Radio This is a Raspberry Pi 3 kit with a 7 inches touchscreen that I build in about 30 minutes Raspberry Read more
Tech Tips – Radio & Antenna for HF Go Box
Tech Tips – Mike, KC8NMW – DX Engineering Sales & Tech Support “What HF rig and antennas are good for a go box?” Read more
IC-7610 Technical Report (Volume 1)
Icom Inc. have published a technical report on the IC-7610 HF/50MHz SDR Transceiver. In this report you will find detailed information about its featu... Read more
FT-8, The New HF/6m Digital Mode, Introduction For Beginners
Steve (K9AN) and I have developed a potential new mode for WSJT-X. We’re calling the mode “FT8” (Franke-Taylor design, 8-FSK modulation). FT8 is desi... Read more
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Equipment
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Harbor Freight Solar Panel for Ham Radio [ Video ]
As an easy introductory solar project I purchased Harbor Freight’s 45 watt solar kit for my ham radio use. Read more
New Russian PA. 2000 Watts . Liquid cooling. Weighs only 14 pounds!
BURST 2000A HF power amplifier BURST-2000A 2200 W PEP output power (SSB and CW) All HF bands, including WARC bands and 6 meters Rated input pow... Read more
PandwaRF Bare
PandwaRF is a RF analysis tool with a sub-1 GHz wireless transceiver controlled by a smartphone or a PC. Its purpose is to capture, display & tran... Read more
Aerial-51 SKY-SDR
GENERAL TRANSCEIVER SPECIFICATIONS Technology Solid State SDR-DSP Direct Conversion Frequencies / Bands 1.8 MHz to 54.0 MHz 160, 80, 60, 40, 30, 20,... Read more
Baofeng UV-7300 Ham radio HF Transceiver – Its Fake
Update! Dear readers 1 april fool : Source http://www.aliexpress.com.jv7u.clonezone.link/uv7300 Real Radio Chine KN-920: http://rigreference.com/rig... Read more
RigExpert Stick 60kHz – 35MHz Analyzer
RigExpert Stick 60kHz – 35MHz Analyzer | State-of-the-Art Antenna & Cable Analyzer Key Features: Frequency range: 0.06 to 35 MHz, upgradable... Read more
AUXILIARY DISPLAY MAKES HAM RADIO FIELD OPERATIONS EASIER
As popular as the venerable Yaesu FT-817 transceiver might be with amateur radio operators, it’s not without its flaws, particularly in the user inter... Read more
App - Mobile
Tutorial – Using the new routing function in RT Systems featuring RFinder
Once again RFinder and RT Systems have partnered to kick radio programming up a notch. This tutorial will show you how to get the most o... Read more
Ham GeoTool APP
A tool all-in-one for the radio amateur in Portugal and Spain created for personal use but at the last JOTA / JOTI, was released at the request of som... Read more
Wizkers:Radio APP
Wizkers:Radio is a controller for various Amateur Radio equipments. At the moment, it supports several Elecraft radios and amplifiers, as well as the... Read more
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Learn Morse Code in Minutes A Day [ APP ]
– Learn Morse Code with different modes of learning, using the letter frequency and spaced repetition to help you learn. – Customize your... Read more
Android APP – Morse Trainer for Ham Radio
Learn or improve Morse code with Morse Trainer. Now with Farnsworth speed and Koch method. If you are a ham radio (amateur radio) operator or just wan... Read more
QTH Locator Droid – Mobile App
The QTH Locator App was developed for HAM Radio use. This is the extended version of “Maidenhead Grid Locator” using Google Maps to show a... Read more
iSDR for Iphone and Ipad
iSDR is a software defined radio application compatible with the iPhone®, iPod touch® and iPad™. iSDR is designed for experimenters, shortwave... Read more
