RadCom December 2019, Vol. 95, No. 12

| December 2, 2019

Cover image: Designed by Kevin Williams, M6CYBSeason’s greetings from the RSGB

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News and Reports

Around Your Region – Club events calendar 84
Around Your Region – Events roundup 88
New products 14
News 11
RSGB Convention 2019, Graham Murchie, G4FSG 26
RSGB Matters 6
Special Interest Groups News 16


Advertisers’ index 93
Antennas, Mike Parkin, G0JMI 18
Contesting, Steve White, G3ZVW 48
GHz bands, Dr John Worsnop, G4BAO 58
HF, Martin Atherton, G3ZAY 54
LF, Dave Pick, G3YXM 53
Members’ ads 94
Propagation, Gwyn Williams, G4FKH 96
Rallies and events 95
Silent Keys 95
The Last Word 97
VHF/UHF, Sam Jewell, G4DDK 56


Bluetooth handheld headset combo, Richard Staples, G4HGI 75
Book Review, Giles Read, G1MFG 66
The Ciro-Mazzoni ‘Baby’ Loop, Adrian Ryan, 5B4AIY/G3VJN 62
RT Systems programmer, Andrew Barron, ZL3DW 30

Special offer

bhi NCH ACTIVE noise cancelling headphones 17


Churches and Chapels on the Air 70
‘FELIX’ the Nazi spy and his South African transmitter, Brian Austin, G0GSF 32
Index 2019 82

Technical Features

Data, Andy Talbot, G4JNT 39
Design Notes, Andy Talbot, G4JNT 44
EMC, Dr David Lauder, G0SNO 76
Minimalistic 500W LDMOSFET 2-30MHz RF amplifier, Jacques Depijpere, ON7NP 22
Programmable audio DSP filter, Greg Hopkins, G4CST 40

Category: Front Page News, RadCom