RadCom September 2020, Vol. 96, No. 9

| August 24, 2020

Cover image: MAP65 for EME (courtesy Gary, G8EOH), EME dish during lockdown (courtesy Martin, G8BHC) and 24GHz activity from Devils Dyke, IO90VV (courtesy Phil,30 G1DFL). Design: Kevin Williams, M6CYBMicrowave activities and EME—more people experiment on the higher amateur bands

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News and Reports

Around Your Region – Club events calendar 88
Around Your Region – Events roundup 90
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 48
GHz bands, Dr John Worsnop, G4BAO 64
HF, Martin Atherton, G3ZAY 60
Members’ ads 94
Propagation, Gwyn Williams, G4FKH 96
Rallies and events 95
The Last Word 97
VHF/HF, Paul Marks, G8FVK 62

Technical Features

Jukka Siitari, SV9RMU 44
Design notes, Andy Talbot, G4JNT 30
EME with MAP65, Gary Simpkins, G8EOH 38
Monitor for SG-Lab 20W 2.4GHz PA, Reinhardt Weber, DC5ZM 24
SWR and all that, Peter Duffett-Smith, G3XJE 80
Using a short vertical mobile antenna at HF, David Smith, G8IDL 22
VDSL interference reports: an update, Steve Carter, G8EPA 72


Book review 78
Mastrant rope and antenna equipment, Steve Nichols, G0KYA 42


GB100MZX: celebrating a centenary, Murray Niman, G6JYB 85
GU75LIB, the story, Phil Cooper, GU0SUP 76
Lockdown VHF NFD, Richard Parker, G4AWP 86
Predicting propagation using RadCom’s table,
Peter Duffett-Smith, G3XJE and Gwyn Williams, G4FKH 37
RSGB Convention Online 66
Surviving lockdown, Malcolm Bell, G4CXT 68
VP8PJ, South Orkney 2020, Gene Spinelli, K5GS and Dave Lloyd, K3EL 54

Category: Front Page News, RadCom