International Marconi Day - April 22, 2023 GB4IMD, Cornwall, UK (Organisers)

GB4LD, Lizard Wireless Station, Bass Point, Cornwall, UK

IY1SP, La Spezia – Museo Tecnico Navale

IY5PIS, Coltano (PI)

IY1MR, Rapallo (GE)

IY1SM, Santa Margherita Ligure (GE)

IY0ORP, Osservatorio Geofisico di Rocca di Papa (RM)

IY0TC, Torre Chiaruccia – Santa Marinella (RM)

IY0CG, Castel Gandolfo (RM)

IY0GA, Capo Figari – Golfo Aranci (SS) – Sardinia Island

IY0IMD, Forte Michelangelo – Civitavecchia (RM)

IY4FGM, Villa Griffone – Pontecchio Marconi (BO)

IY6GM, Monte Cappuccini (AN)

IY7M, Molo San Cataldo (BA)

IY1TO, “Gino Lisa” Mirafiori (Turin)

GB8MD, Telford & District ARS, Gwynedd, Wales

EI3IMD, Coastguard Station, Tramore, Ireland

K3IMD, Hartstown, Pennsylvania, USA

WA3BAT, Philadelphia Museum Ship, Philadelphia, USA

KM1CC, Cape Cod RC, USA

GB2GM, Poldhu ARC, Cornwall, UK

GB2NH, Tidemills Marconi Site, East Sussex, UK

GB2MCW, Tidemills Marconi Site, East Sussex, UK

OE23M, ORF Centre, Vienna, Austria

K2M, Marconi Tower, Binghamton, NY, USA

EI0MAR, Martello Tower, Dublin

W1WCC, Chatham, Massachusetts, Cape Cod, USA

GB5LSG, Lochboisdale, Isle Of South Uist, Outer Hebrides, Scotland

GB0CMS, Caister Marconi Station, Life Boat Station, Norfolk, UK

VK2IMD, Hornsby & District ARC, Hornsby, NSW, Australia

DA0IMD, Borkum Island, Germany

VP8VPC, Stanley, Falkland Islands

PA23IMD, Gouda & District Section Veron, Netherlands

GB0IMD, Weston Super Mare, UK

HV1CN, Vatican Radio , Vatican City

W1AA, Marion (Mass, USA) Marconi Transmitter Building site

W2RC, Radio Central ARC, Rocky Point, New York

IY0MMR, Forte Monte Mario (Roma)

GB4MPC, Marconi Point, Cullercoats, UK

GB4MDI, Barry ARS, Lavernock Point, South Wales

G2NM, Amberley Museum ARC, West Sussex, UK

G2LO, Borough Hill, Daventry, UK

W2M, Babylon, New York, USA

GB0MAR, The Needles, Marconi Monument,  Isle Of Wight

GB6IMD, The Marconi Memorial, Ballycastle, Northern Ireland

GB5LT, Luttrells Tower, Hampshire, UK

GX0MWT, Chelmsford ARS, Essex, UK

K3S, Nuclear Ship Savannah, Baltimore, USA

DL0BRF, Light Vessel Borkumriff, Borkum Island, Germany

GB0MBP, Marconi Bass Point, The Lizard, Cornwall, UK

9H1MRC, Marconi Amateur Radio Circle, Malta

GB1GLC, Marconi’s Carnarvon Station, North Wales

IY7GMB, Circolo ARS, Bari

K6KPH, Maritime Radio Historical Society, California, USA

W2RTM, New Jersey Antique Radio Club, New Jersey, USA

GB4MHS, Museum of History & Science, Oxford, UK

VO1IMD, Signal Hill, Newfoundland, Canada

GB2IMD, Dragon Amateur Radio Club, Wales

EI4IMD, Corrywongaun. Co. Galway, Ireland

M3KXZ/P, Tide Mills, East Sussex, UK

GB100TMD, Telford & District ARS, Gwynedd, Wales (Tywyn Marconi Day)

CW1GM

Radiogrupo Sur, Uruguay

GB0MPB

Marconi Portland Bill,  Portland, Dorset, UK