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An Introduction to Software Defined Radios

An Introduction to Software Defined Radios

Posted by Steve Kennedy - VK6SJ

  Radios in the past 50 years or more have been designed with multiple frequency translation stages to provide good selectivity and good image rejection across all of HF, and for the last 15 year

21st Apr 2025

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Contesting

Contesting

Posted by Steve Kennedy - VK6SJ

Did you know that the “Spring” (or for us in the south, the Autumn) contesting season is upon us? As I write this, the John Moyle Field Day contest is in full swing. At the same time there is a Russ

4th Jul 2024

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Electronic QSLing

Electronic QSLing

Posted by Steve Kennedy - VK6SJ

So, from last week we now know all about hard copy QSL cards. There is something magical about hard copy cards and I hope they never die out, but I am equally thankful for a new way of verifying con

2nd Jul 2024

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Lightning Protection and Earthing

Lightning Protection and Earthing

Posted by Steve Kennedy - VK6SJ

Did you know that about the most devastating thing that can happen in your shack is generally related to either a direct or near lightning strike. It actually happens more often than you might reali

2nd Jul 2024

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Encouraging New Hams

Encouraging New Hams

Posted by Steve Kennedy - VK6SJ

How many of us have the last 2, 3 or more radios they have replaced, still sitting in the shed gathering dust? The amount of photos I’ve seen of shacks the world over that have 4 or 5 radios neatly

2nd Jul 2024

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Recent Posts

An Introduction to Software Defined Radios

An Introduction to Software Defined Radios

Posted by Steve Kennedy - VK6SJ

  Radios in the past 50 years or more have been designed with multiple frequency translation stages to provide good selectivity and good image rejection across all of HF, and for the last 15 year

21st Apr 2025

read more
Contesting

Contesting

Posted by Steve Kennedy - VK6SJ

Did you know that the “Spring” (or for us in the south, the Autumn) contesting season is upon us? As I write this, the John Moyle Field Day contest is in full swing. At the same time there is a Russ

4th Jul 2024

read more
Electronic QSLing

Electronic QSLing

Posted by Steve Kennedy - VK6SJ

So, from last week we now know all about hard copy QSL cards. There is something magical about hard copy cards and I hope they never die out, but I am equally thankful for a new way of verifying con

2nd Jul 2024

read more
Lightning Protection and Earthing

Lightning Protection and Earthing

Posted by Steve Kennedy - VK6SJ

Did you know that about the most devastating thing that can happen in your shack is generally related to either a direct or near lightning strike. It actually happens more often than you might reali

2nd Jul 2024

read more
Encouraging New Hams

Encouraging New Hams

Posted by Steve Kennedy - VK6SJ

How many of us have the last 2, 3 or more radios they have replaced, still sitting in the shed gathering dust? The amount of photos I’ve seen of shacks the world over that have 4 or 5 radios neatly

2nd Jul 2024

read more