RadCom January 2023, Vol. 99, No. 1

| December 8, 2022

Improved antenna rotator controller using an STM32 Nucleo controller

To read this edition, tap or click cover image

News and Reports

Around Your Region – Club events calendar 85
Around Your Region – Events roundup 89
New products 14
News 12
RSGB at the National Hamfest 2022 63
RSGB Matters 6
Special Interest Groups News 15


Advertisers’ index 93
Antennas, Mike Parkin, G0JMI 16
ATV, Dave Crump 34
Contest calendar, Ian Pawson, G0FCT 55
Contesting, Chris Tran, GM3WOJ 54
GHz Bands, Dr John Worsnop, G4BAO 68
HF, Daimon Tilley, G4USI 64
Members’ ads 94
Propagation, Gwyn Williams, G4FKH 96
Rallies and events 95
The Last Word 97
VHF/UHF, James Stevens, M0JCQ 66

Technical features

An improved antenna rotator controller, Tim Forrester, G4WIM 28
APRS With TTGO LoRa module – Introduction, Anthony Le Cren, F4GOH, KF4GOH 36
Design Notes, Andy Talbot, G4JNT 40
EMF exposure measurement, an experimental approach, John Hawes BSc CEng FIET, G8CQX 76
Wireless Morse keys, Ray Scrivens, G3LNM 82


Amateur radio community support, Linden Allen, M0TCF 46
ARDC helps clubs succeed, Dan Romanchik, KB6NU 44
British Inland Waterways on the Air, 2022, Lyndsay Latimer, M6YMB 20
Gloucester Amateur Radio and Electronics Society, 72
100th anniversary celebration, Dr David Tunnicliffe, G4BCA
International Museums on the Air, 2022, David Webb, M0SKT 38
Jamboree on the Air, 2022 24
Producing HF propagation charts using Proppy, Steve Nichols, G0KYA 79
Ramblings of a 1950s radio engineer… , Robert Dancy, G3JRD 80
RSGB Construction Contest, Heather Parsons, RSGB Communications Manager 53
Wolverhampton Amateur Radio Society celebrates its centenary, Andrew Atkinson, 2E0YEZ and Wayne Hughes, M7WLH 70


Antennas-amplifiers 2m 1.5kW Band Pass Filter, James Stevens, M0JCQ 56
Best of 2022’s book reviews 48
SV4401A handheld vector network analyser, Mike Richards, G4WNC 58

Category: Front Page News, RadCom