Practical Wireless - April 2021
Reviewed: Radio Geeks inflatable antenna and the TinySA Spectrum Analyser. Working with SMDs, metal oxide varistors, amateur radio on a budget and much more.
On Sale: 11/03/2021
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What's in this Issue?
Don has been presenting in Orlando (virtually) and also has something to say on Complex Numbers and the licence exams.
News PW’s monthly roundup of news from the UK and internationally, including new products, club news and recent events.
Review − The Radio Geeks 144/430MHz Dual-Band Inflatable Antenna
Tim Kirby GW4VXE tries out an intriguing antenna for 2m and 70cm.
Review − The Tiny SA Spectrum Analyser and Signal Generator
Tim Kirby GW4VXE plays with and recommends a handy and inexpensive piece of test equipment.
Metal Oxide Varistors and their Uses
Colyn Baillie-Searle GD4EIP explains the ins and outs of a useful but oft-overlooked device.
Steve White G3ZVW is Making Waves in a rather different way, by talking a lot of nonsense. This is because the claims made by some advertisers for signal coverage and antenna gain are nonsense.
Amateur Radio on a Budget, Part Two
Daimon Tilley G4USI takes a look at budget options for getting started at VHF/UHF.
The World of VHF
Tim Kirby GW4VXE has all the usual VHF news but starts with a discussion of FM mobile operation on the 70MHz band.
Colin Redwood G6MXL looks at getting equipped to operate away from home.
Notes from a Small Station
Joe Chester M1MWD continues to ponder possible improvements to his station and antennas.
Kits & Modules
Geoff Theasby G8BMI takes a simple circuit and shows how it can be developed for multiple uses.
A Surprising Code – Morse Revealed, Part 2
Mike Bedford G4AEE continues his quest to reveal some of the lesser-known facts about Morse Code.
The Morse Mode
Roger Cooke G3LDI has his usual selection of Morse-related topics.
Steve Telenius-Lowe PJ4DX reports from his island QTH, but with plenty of HF news from readers around the world.
Mike Richards G4WNC has updates on the RX888, WSJT and the Raspberry Pi.
Afraid of SMDs, don’t be!
Michael Jones GW7BBY has hints and tips on SMD construction.
Valve & Vintage
Scott Caldwell tells the tale of Artie Moore, a remarkable pioneer of radio.
From the Ground Up
Eric Edwards GW8LJJ looks at the basics of inductance.
Topics this month include the Full Licence exam, UK callsigns, amateur radio jargon and the EA12 receiver.