RadCom July 2019, Vol. 95, No. 7

| June 24, 2019

Cover image: Iain Haywood, G4SGX was active as V31GX from Ambergris Caye, NA-073, Belize during the 2019 RSGB Commonwealth Contest. Andre, V31DL, the host for the trip, can be seen on the mast. Photo by Iain, G4SGX.RSGB Commonwealth Contest—the antenna tower at V31GX provided good signals in our oldest contest

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News and Reports

82nd Commonwealth Contest 2019,
Bob Whelan, G3PJT 42
Around Your Region – Club events calendar 84
Around Your Region – Events roundup 89
Dayton 2019 82
New products 14
News 12
RSGB Matters 6
Special Interest Groups News 16


Advertisers’ index 93
Antennas, Mike Parkin, G0JMI 18
ATV, Dave Crump, G8GKQ 53
Contesting, Steve White, G3ZVW 40
GHz bands, Dr John Worsnop, G4BAO 66
HF, Martin Atherton, G3ZAY 62
Members’ ads 94
Propagation, Gwyn Williams, G4FKH 96
Rallies and events 95
The Last Word 97
VHF/UHF, Richard Staples, G4HGI 64

Technical Features

A phased vertical system for 80m, Ron Stone, GW3YDX 22
Can shortwave radio detect earthquakes? Alex Schwarz, VE7DXW 72
Design notes, Andy Talbot, G4JNT 46
VHF AM receiver to trace line noise, George Smith, G8AOJ 54


A different kind of radio club, Charles Brookson, G4GBA and Brian Woodcock, G4CIB 60
British ARDF Championships, Bob Titterington, G3ORY 26
Countdown to Syllabus 2019, Mike Bruce, M0ITI 80
DXpedition to Kanton Island, Central Kiribati, Ronald Stuy, PA3EWP 76
International Marconi Day 2019 68
RSGB 2019 Convention, Graham Murchie, G4FSG 38
World Scout Jamboree NA1WJ, Remko Welling, PE1MEW 56


Book review 83
Ciro-Mazzoni ‘Stealth’ antenna, Adrian Ryan, 5B4AIY/G3VJN 30

Category: Front Page News, RadCom