Radio amateur activities of LX4SKY

Introduction

Introduction to the world of ham radio

How to become an amateur radio? (en français)

The ham-spirit from hobby to contests

Hamshacks of dream

Hams in the sky

Traffic and codes

Initiation

The time in the world

Audio and sound files

Files to download & Ham Links

Work the world with EchoLink !

Clusters and packet radio

Digital Radio Mondiale

Satellites reception

Meteor Scatter communications

ISS "ET Shadow" experiment

History

The History of Amateur Radio

The future of communications

The Titanic tragedy, sunk between CQD and SOS

The History of Torre Bert

Propagation

Real-time status of solar, geomagnetic and auroral activities

The radio propagation

Ionospheric perturbations

HF Propagation tutorial, by Bob Brown, NM7M, U.C.Berkeley

CQ DX for an SWL (and others)

The short history of the Smoothed Sunspot Number

Review of HF propagation analysis and prediction programs

What can we expect from an HF propagation model ?

VOACAP propagation analysis and prediction program review

WinCAP Wizard propagation analysis and prediction program review

DX ToolBox propagation analysis and prediction program review

HFProp propagation analysis and prediction program review

Eclipses and the D-layer absorption

Antenna systems

Basics of antennas

From Longwire to Yagi

Equipment for portable HF operations

Assembling your antenna system

Select your antenna rotating system

What directive antenna to select ?

The mystery of radials

From dB to S-point : Learn to play with power units

SWR, the radiation resistance

All about Transmission lines

Wire antennas for listeners

G5RV multi-band antenna

ALA 1530 active magnetic loop antenna review

Technical reviews

Ham software review

All about Lightning protection

How to select an HF transceiver ?

Yaesu FT-1000MP Mark-V transceiver review

Kenwood TS-570D(G) transceiver review

Check your transmitter power

Principles of amplification

How to select a solid-state HF amplifier ?

How to select a tube HF amplifier ?

How to preserve your tube lifespan ?

Electromagnetic radiations and your health

RFI, troubles and solutions

Broadband Power Line telecommunications & the amateur service

MFJ-1026 Deluxe Interference & Noise Canceler review

Back office activities

DX entities without ham activity

QSL and green stamps

Chasing QSL cards

QSL confirmed

Awards and certificates

DX Cluster (link)