marxy's musing on technology

A bloke with too many hobbies.

Monday, November 27, 2017

Akihabara, Tokyo, Japan - ham radio heaven

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Japan has the world's highest number of ham radio licensees per capita, 0.343% of the population. This means that there are a good numbe...
Friday, November 24, 2017

Archive of early technical magazines

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American Radio History is a fantastic archive of early electronics, technology, sound recording and broadcast magazines. Mostly UK and US...
Wednesday, November 22, 2017

Tuning 40m at a low noise location near Dorrigo

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What a pleasure it is to tune the 40m band at a location where the only noise is the occasional "tick tick" of electric fences. He...
Tuesday, November 21, 2017

Low RF noise location - near Dorrigo

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This week I'm spending a few days at a very low noise location in northern New South Wales near Dorrigo. Yesterday I tuned around 4...
Sunday, November 12, 2017

Blog hits a million page views

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A milestone today, the page views on this little blog has just hit one million. This blog is really a personal notebook where I write litt...
1 comment:
Friday, November 10, 2017

Comparing antennas with WSPR

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The new end fed antenna has obviously higher signals but also higher noise. The question is.. which antenna is better? I now have thr...
Tuesday, November 07, 2017

Built an end fed match box

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At QRP by the harbour I put up a dipole for 40m and John VK2ASU put up an end fed antenna which seemed to work better. My dipole was held ...
Monday, November 06, 2017

Active on 6m with new J-Pole antenna

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My thanks to Peter, VK2EMU, who manufactured a few J-Pole antennas for 6m. A beautiful addition to the shed. Thanks also to Stephen, VK...
Monday, October 23, 2017

Run your own Web SDR with OpenWebRX on Raspberry Pi

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There's quite a few excellent remote receivers running WebSDR  but unfortunately the author has decided only to give the software to ...
4 comments:
Sunday, October 22, 2017

QRP by the Harbour - Late 2017

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Under threatening skies we had a second " QRP by the Harbour " event in Sydney today. Facebook worked well to coordinate and p...
Friday, October 20, 2017

iPhone to Pixel 2 - what's better, what's worse?

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After a few days I'm well in to the new world, for me, of Android Oreo on a Pixel 2. I've kept a list of observations (in Google Kee...
Wednesday, October 18, 2017

Pixel 2 review from an iPhone tragic

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Our family is very much in the Apple eco-system. We iMessage, FaceTime, iPhoto, and watch AppleTV. The family uses Find my Friends and we ...
1 comment:
Sunday, October 08, 2017

Tesla Tiny House - disappointing

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Tiny houses are fascinating examples of efficient, frugal, tidy living and I was excited that the Tesla Tiny House was coming to Lane Cove ...
Wednesday, September 20, 2017

Very simple 40m portable dipole with speaker wire.

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Talking with Ross, VK1UN, the other day we stumbled on the simple idea of using figure 8 speaker wire as the feed line up to an "inv...
Tuesday, September 19, 2017

Handy lightning map

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Brian, VK2AAF, just alerted me to a fantastic map of current lightning. LightningMaps . Were were talking on 80m and there was quite a lot...
Thursday, September 14, 2017

Simple Fronius logger

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If you can install python (which you can pretty much anywhere) here's a little script to get started with logging from Fronius inverter...
Sunday, September 10, 2017

Solar electric panels installed at home

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The ham shed has been solar powered for many years. Finally it was time to install PV panels on the roof of the house. The panels are in...
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