RadCom May 2020, Vol. 96, No. 5

| April 23, 2020

Cover image: The Lelantos program and VDSL interference. Photos courtesy RSGB EMC Committee. Design Kevin Williams.VDSL interference—how you can identify and combat this problem

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News and Reports

Around Your Region – Club events calendar 84
Around Your Region – Events roundup 88
New products 14
News 12
RSGB Matters 6
Special Interest Groups News 16


Advertisers’ index 93
Antennas, Mike Parkin, G0JMI 54
ATV, Dave Crump, G8GKQ 53
Contesting 22
GHz bands, Dr John Worsnop, G4BAO 64
HF, Martin Atherton, G3ZAY 60
Members’ ads 94
Propagation, Gwyn Williams, G4FKH 91
Rallies and events 95
The Last Word 96


Amateurs’ role in disaster communications, Richard Thomas, G4JJP 76
Battle of the Radio Beams, Dr Bruce Taylor, HB9ANY 80
Bhutan, the land of the Thunder Dragon, Adrian Ciuperca, KO8SCA 42
Build a Radio Workshops, Steve Hartley, G0FUW 26


Ascel AE20401 frequency counter and power meter kit, Andrew Barron, ZL3DW 72
bhi NES10-2 Mk 4 noise reduction speaker, Mike Richards, G4WNC 24
Book review 79

Technical Features

Decibels without the logarithmic calculations, Roger Paskvan, WA0IUJ 66
Demystifying SDR FM modulation, Mark Atherton, ZL3JVX 30
Design notes, Andy Talbot, G4JNT 46
Educational WSPR transmitter, Anthony Le Cren, F4GOH/KB1GOH 37
TVI – a case history, Geoff Budden, G3WZP 44
VDSL interference – Call to action 18
What is the function of an antenna, Dr David Kirkby, G8WRB 68

Category: Front Page News, RadCom