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A first-time activation of a POTA park
As a latecomer to the Parks on the Air program, I didn't think there were any unactivated parks in the vicinity of where I live just southwest of Oslo. But the other day I found one which had been...
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When you love radio and want to do more hiking: POTA
I love amateur radio and I would like to do more hiking - so what's more natural than to take part in the Parks On the Air (POTA) program. I've only recently discovered POTA and how it combines the...
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Garden portable with the QMX+
Just a few days ago I had my first SSB QSO with the QMX+. It was from LA to PA - Norway to the Netherlands - on 20 m using a vertical quarter wave antenna. The speaker/microphone is a "For Kenwood"...
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Why didn't I come up with this simple upgrade to the QMX+?
This is an upgrade to the QMX+ which is so simple that I keep saying to myself: why did it take so long for someone to come up with it?It consists only of doubling the PA transistors. The original 4...
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Radio amateur endorses my latest book
Last fall I published the book "The Imagined Conflict". One of the endorsers is John Lennox, with whom I share the radio amateur hobby. His callsign during his most active days was GI3NSP, at present...
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Do deer like antenna wires?
Our garden is frequently visited by roe deer. They like to trek along the little brook that runs at the edge of the garden. Usually that has few consequences.But this weekend as I was about to contact...
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The Imagined Conflict
I have a new independent blog named after my book "The imagined conflict". The book was published in November 2025 and is a revised translation of a book first published in Norwegian in 2021 and in a...
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Science with Overtones
Science with Overtones: 21 Natural Scientists and Their Belief in God.Scientists with a belief in God have played a central role in the development of science for more than four hundred years. Some...
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My Ruyage UV58Plus changed into a completely new radio
New look (M70CM 3.2/P2.0)I bought the Royage UV58Plus (also called Radtel 890) in August 2023. I liked its display as it would show both the frequency and the name of the station at the same time, and...
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The surprising faith of scientists
Equations representing many of the scientists in the book"The surprising faith of scientists" is the tentative title of a book manuscript just submitted. The book stems from a discovery I made some...
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Adaptive filters in amateur radio
Examples of a speech signal (top), a sinusoidal, and noise (bottom)Radio amateurs have been using adaptive noise reduction and adaptive notch filters for decades. They came with the advent of audio...
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Customize your own list of favorite screens for the Multi-face GPS Clock
Fav 2 subset with 11 entries (Example in text has 9)The Clock subset menu of the Multi-face GPS Clock gives you a choice already between:All, 50 screensFav 1, 34 screensFav 2, 9 screensCalendar, 13...
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QMX+ mechanical improvements
My QMX+ has some minor mechanical improvements:Slimmer knobs. I decided to replace the knobs as I often touched the bottom one while adjusting the top one and vice versa. The slimmer knobs solved that....
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Speech coding in DMR, D-STAR and System Fusion
Example of a speech signal which transitions from an unvoiced to a voiced soundDigital VHF and UHF communications is increasingly popular among radio amateurs using DMR, D-STAR and System Fusion. Very...
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My favorite faces for the Multi Face GPS Clock
Weekly progress bar with Monday as day 1 in week 9 and yearly progress bar as of day 56 in the year.Among the 49 different faces (or screens) now implemented on the Multi face GPS clock, it is hard to...
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A QMX+ coming together
I got an unassembled QMX+ for Christmas this year, and here are pictures of it coming together. First the winding of toroids for the low-pass filters:Here is a picture of it actually operating in the 7...
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The unphysical free-space path loss
Propagation of wave energy to distance d, 2d, 3d showing how the size of the surface that the energyspreads over increases in proportion to d², (2d)², and (3d)²Many places it is stated that the lower...
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A Fourth Method of Generation and Detection of Single-Sideband Signals
Envelope Elimination and Restoration, from Kahn 1952 There is a method for SSB generation which is now becoming popular with digital signal generation and digital output stages. This is the Envelope...
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v2.2.0 Multi-Face GPS-Clock
A few new screens:NextEvents() - New screen showing Next Equinox/Solstice, Easter, Lunar/Solar Eclipses in sorted order, i.e. sorted after date as shown to the rightSolarEclipse() - New screen showing...
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Groups.io discussions for the Multi-face GPS Clock
The new discussion group is https://groups.io/g/Multi-Face-GPS-Clock/messages.Please sign up!The latest version of the code is on GitHub.
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