Circulo De Radioaficionados de Dolores

Circulo De Radioaficionados de Dolores Unidos por mas logros !!! Circulo de Radioaficioandos de Dolores, lugar para la educación experimentación y formación de nuevos radioaficionados .

Donde encontraras un lugar socialmente activo, un ambiente cordial y familiar.

01/05/2026

Muchas gracias al Centro de actividades nauticas y en especial al capitan Alfredo Barragan por poner a la dispocicion del CIRADOL las instalaciones del lago parque para la activacion.

01/05/2026

La estacion portatil del CIRADOL desde el lago parque nautico de Dolores activando "LLOTA", lagos y lagunas en el aire.
Una iniciativa diseñada para fomentar la radioaficion desde entornos naturales unicos promoviendo el respeto por el medio ambiente.
Conectando radioaficionados con la naturaleza a travez de los lagos y lagunas del mundo.
REFERENCIA INTERNACIONAL AR-0223 Lago nautico de la ciudad de Dolores
40m en 7135Mhz operadores: Santiago Ferranti LU2EOJ/Tony Tuchi LU8DAL/Aldo Andrade LW9EAN/Jorge Dario Alam LU9DXM/Jorge Erbetta LU4EFC

01/05/2026
09/04/2026

🎙️ Ever wonder why your radio sounds totally different at night?

It’s not your equipment — it’s the ionosphere doing its thing!

☀️ During the day, the D Layer absorbs your low band signals on 160m and 80m — but opens up LONG skip DX on 20m–10m.

🌙 After sunset, that D Layer vanishes — and suddenly 160m, 80m, and 40m are reaching across continents like magic.

Band choice isn’t guesswork — it’s science. Know your layers and you’ll know exactly when to spin that VFO dial.

Save this graphic and share it with a new ham who needs to see it! 👇📻

08/04/2026

🌟 The Magic Band Is Waking Up! 🌟

That familiar itch is back. You’re staring at the DX cluster at odd hours, refreshing PSKReporter, wondering — is today the day?
Six meters is stirring. 🎙️

Every spring, as the sun climbs higher and solar flux ticks upward, 50 MHz shakes off its winter silence and starts doing things that shouldn’t be possible. Signals from Europe, Japan, South America — booming in like they’re next door, then gone before you can call back. That’s Sporadic E season, and it’s almost here.
And with Solar Cycle 25 near its peak, F2 propagation on 6 meters is a very real possibility this year. True worldwide DX on a band that most days can’t reach the next county. When it opens — it’s absolutely electric. ⚡

Big Yagi or simple dipole, kilowatt or barefoot — the Magic Band levels the playing field.

Openings happen fast and rewards go to those who are ready.

Dust off that radio. Check your antenna. Log into the cluster. 📡

Dead one minute… Worldwide the next! 🌍

06/04/2026

The 5/8 wavelength vertical groundplane is a premier choice for the 6-meter band (50 MHz), offering a significant gain of 4.7 dBi and a low radiation angle ideal for DX propagation. Unlike a standard 1/4 wave antenna, the 5/8 wave element presents a capacitive reactive component; therefore, the dual-coil matching network (L1 and L2) shown in the design is mathematically essential to transform the complex impedance to a resonant 50Ω resistive load.

By utilizing the sliding T3 section for fine-tuning, operators can achieve a perfect 1:1 SWR at the center frequency, ensuring maximum power transfer and efficiency. This design, originally engineered by ON6MU, remains a benchmark for homebrew 50 MHz projects due to its robust omnidirectional pattern and reliable wide-bandwidth performance.

73 from PY6CJ - João Grisi

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