K3 at SE0X gets major upgrade

The Elecraft K3 transceiver at SE0X is an early first batch model. It was ordered within days from the K3 announcement at the Visalia DX convention 10 years ago. Many improvements has been introduced over the years and most of them have been implemented in our K3. Tweet

Feeding 20 Volt to a K3, not good!

Here is a short update on my fried K3. The drama happened in the last hour before CQ WPX SSB when we where about to kick off a Multi Operator Single station effort from SE0X. Patrik SM0MLZ was practice running on 40 meter when I noticed the the shack lights flickering. When Patrik keyed, the

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WPX SSB: K3 fried one hour before start

This year SM0MDG and SM0MLZ teamed up for the WPX SSB Contest from SEOX. Due to the contest colliding with easter weekend obligations the other regulars weren’t able to make it. With a two person team our plan was to take a shot at the SM record, multi-op, single TX in WPX SSB. Two radios

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Aurora killed IARU goals

I had not really prepared for the 2012 edition of the IARU HF Challenge because of intensified preparations of the upcoming CY9M expedition, but I spent an hour reading up on past years achievements deciding it was time for a CW only effort with a goal to reach 1700 contacts. Not checking the propagation in advance I did not bother to calculate a goal for the final score, I was more focused on the number of contacts.

K3 Enhancement: DSP APF – Audio Peaking Filter

Elecraft recently announced that they are adding an Audio Peaking Filter (APF) to the K3 transceiver. The DSP APF filter  is modeled to perform like analog APF filters such as the praised one found in early Yaesu FT-1000D transceivers. The filter is easiest described as the opposite of a notch filer as it applies gain

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