To read this edition, tap or click the cover image Contents 1 Alignment of multi-resonator band-pass filters without a sweep generator John Worsnop, G4BAO 3 A compact broadband active antenna for VHF/UHF: The “Scantenna” John Hawes, G8CQX 10 Receiver and transceiver home design and construction Bob F. Burns, G3OOU 33 Operating on the 30THz band: […]
Approximately three million people worldwide benefit from amateur radio, a means of global communication utilizing radio waves. To expand its reach in Africa, the African Telecommunications Union (ATU) and the International Amateur Radio Union (IARU) have signed a landmark agreement …
VER20230728, Version entity is Western Sahara, S0 Download: [ CTY-3324 | CT8 | Win-Test | WriteLog | XML ] Added/changed Entities/Prefixes/Callsigns: W8PAR is United States, K in CQ zone 5, ITU zone 8 KO4JB is Guam, KH2 KD6NFT is Hawaii, …
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Version entity is Lesotho, 7P ADIFCnt.txt has 340 DXCC entities and 62 deleted DXCC entities. arrlpre3.txt has 24557 prefix+callsign mappings. cqwwpre3.txt has 24709 prefix+callsign mappings. [download] Added Prefixes/Callsigns: WL7AIG, NH0XP, KL4QN, KL0KT, KH6KA and KH2TJ/P are all USA, K in …
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Version entity is Lesotho, 7P [download] Added/changed Entities/Prefixes/Callsigns: KH6KA, KL0KT, KL4QN, NH0XP, WB6COP and WL7AIG are all United States, K in CQ zone 3, ITU zone 6 WL7KS is United States, K in CQ zone 4, ITU zone 7 KL1AS, …
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Version entity is Togo, 5V Entities: 402 Prefixes: 4,671 Callsigns: 31,631 Managers: 98,984 Addresses: 13,637 [download] DX4WIN 8.05 and earlier [download] DX4WIN 9.01 and later [Entities] [Prefixes] [Callsigns] [Managers] [IOTA] Entities Prefixes KR6 and KR8 from 15 May 1972 through 23 March 1978 are both …
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Using FT8 and the Reverse Beacons to gauge HF propagation James Stevens, M0JCQ has put together a step-by-step guide to help you use the Reverse Beacon Network to gauge band conditions and his results speak for themselves—have a go yourself! In this edition… 12 Repairing circuit board tracks – Part 1 Here are a couple […]
Paul became interested in electronics and radios as a youngster when his father made him a crystal radio set, but living in Leigh-on-Sea in the 1960s, all it would pick up was the Pirate Radio stations in the Thames Estuary. Later, his father gave him an old MW/SW/LW valve radio with a long wire antenna […]
Ron Glover, G0WPG – 18 July 2023
Thanks to Chris Leviston, M0KPW, ten children at Ireleth St Peters (ISP) CofE Primary School in Cumbria have achieved their Radio Surfer Awards. Chris recently started an after-school club at ISP, and over the five weeks that it ran, the children enjoyed a range of amateur radio activities, leading to them each being presented with […]
