Category Archives: Radioamadorismo

3D22 3D2ZZ Team will be active from Rotuma Island, IOTA OC – 060. Powered by WPeMatico

C8K Team will be active from Mozambique during January 2025. Powered by WPeMatico

Miki, JJ2CJB will be active as V63CB from Weno Island, IOTA OC – 011, Micronesia, 25 – 29 October 2024. Powered by WPeMatico

C5T and C5I Team will be active from Gambia, 25 – 29 November 2024. Powered by WPeMatico

Esta é uma tabela de dBm, dBu ,Tensão e Unidades-S (S-units) .  dBm, dBu  e tensão são unidades métricas bem conhecidas, já Unidades-S (S-units) é um pouco desconhecida para quem não trabalha na área de radiofrequência. Medidor de S-units é uma especie de medidor de intensidade do sinal,  um medidor muito usado em receptores de comunicações , tais como rádio amador ou receptores de ondas curtas e de radiodifusão. As marcações da escala  de S-units são derivadas de um sistema de sinal de S1 a S9 como parte do código RST . Abaixo a tabela S do RST: 1- Sinal fraco, quase imperceptível2- Muito fraco3- Fraco4- Feira5- Bastante bom6- Bom7- Moderadamente forte8- Forte9- Sinais muito fortes Tabela de dBm para dBu – Tensão e Units-S dBm(R = 50 ohm) dBu * (R = 75 Ohm,  0 dbu = 0,775 V) Tensão S-units(S9 = 100 UV, R = 50 Ohm) S-units(S9 = 50uV, R = 50 ohm) – 7 dBm – 17…

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V55LA Team will be active from Namibia from the end of October through the first week of November 2024. Powered by WPeMatico

TX7N Team will be active from Hiva Oa Island, Marquesas Islands, IOTA OC – 027 in January 2025. Powered by WPeMatico

Alex, SQ9UM will be active as D4UM from Sal Island, IOTA AF – 086, Cape Verde, Cabo Verde, 16 – 26 August 2024. Powered by WPeMatico

6O3T Team will be active from Somalia, 9 – 30 September 2024. Powered by WPeMatico

Thomas, FP/DC8TM and Martina, FP/DF3TS will be active from Saint Pierre Island, IOTA NA – 032, 31 August – 3 September 2024. Powered by WPeMatico

The Magnet, with the N5J team and three USFWS scientists on board, got under way at 0500 AM from American Samoa for Jarvis island. Powered by WPeMatico

J75K Team will be active from Dominica, IOTA NA – 101, 26 December 2024 – 4 January 2025. Powered by WPeMatico

Gerard VK4BGL/G3WIP will be active as VP8DPD from Falkland Islands, IOTA SA-002. until 12 August 2024. Powered by WPeMatico

Phillip, OE6MCX is currently active as 8P9MC from Barbados, IOTA NA – 021. Powered by WPeMatico

IC8WIC will be active from Capri Island, IOTA EU-031, in RSGB IOTA Contest, 27 – 28 July 2024. Powered by WPeMatico

Giovanni, IZ2DPX will be active as TO7PX from Reunion Island, IOTA AF – 016, 4 – 18 July 2024. Powered by WPeMatico

Chas, NK8O will be active again as 5H3DX from Tanzania, 18 – 30 June 2024.

V3T Team will be active from Belize in ARRL DX CW Contest, 17 – 18 February 2024.

ZS9V Team will be active again from Robben Island, IOTA AF – 064, 17 – 21 August 2023.