hamradio

Free software, GSoC and ham radio in Kosovo

After the excitement of OSCAL in Tirana, I travelled up to Prishtina, Kosovo, with some of Debian's new GSoC students. We don't always have so many students participating in the same location. Being able to meet with all of them for a coffee each morning gave some interesting insights into the challenges people face in these projects and things that communities can do to help new contributors.

OSCAL'18 Debian, Ham, SDR and GSoC activities

Over the weekend I've been in Tirana, Albania for OSCAL 2018.

A closer look at power and PowerPole

The crowdfunding campaign has so far raised enough money to buy a small lead-acid battery but hopefully with another four days to go before OSCAL we can reach the target of an AGM battery. In the interest of transparency, I will shortly publish a summary of the donations.

Powering a ham radio transmitter

Last week I announced the crowdfunding campaign to help run a ham radio station at OSCAL. Thanks to all those people who already donated or expressed interest in volunteering.

Modern electronics are very compact and most of what I need to run the station can be transported in my hand luggage. The two big challenges are power supplies and antenna masts. In this blog post there are more details about the former.

Here is a picture of all the equipment I hope to use:

GoFundMe: errors and bait-and-switch

Yesterday I set up a crowdfunding campaign to purchase some equipment for the ham radio demo at OSCAL.

It was the first time I tried crowdfunding and the financial goal didn't seem very big (a good quality AGM battery might only need EUR 250) so I only spent a little time looking at some of the common crowdfunding sites and decided to try GoFundMe.

Turning a dictator's pyramid into a ham radio station

(Update: due to concerns about GoFundMe, I changed the links in this blog post so people can donate directly through PayPal. Anybody who tried to donate through GoFundMe should be receiving a refund.)

RHL'18 in Saint-Cergue, Switzerland

RHL'18 was held at the centre du Vallon à St-Cergue, the building in the very center of this photo, at the bottom of the piste:

Building an antenna and receiving ham and shortwave stations with SDR

In my previous blog on the topic of software defined radio (SDR), I provided a quickstart guide to using gqrx, GNU Radio and the RTL-SDR dongle to receive FM radio and the amateur two meter (VHF) band.

Using the same software configuration and the same RTL-SDR dongle, it is possible to add some extra components and receive ham radio and shortwave transmissions from around the world.

Quickstart SDR with gqrx, GNU Radio and the RTL-SDR dongle

Software Defined Radio (SDR) provides many opportunities for both experimentation and solving real-world problems. It is not exactly a new technology but it has become significantly more accessible due to the increases in desktop computing power (for performing the DSP functions) and simultaneous reduction in the cost of SDR hardware.

LinuxWochen, MiniDebConf Vienna and Linux Presentation Day

Over the coming week, there are a vast number of free software events taking place around the world.

I'll be at the LinuxWochen Vienna and MiniDebConf Vienna, the events run over four days from Thursday, 28 April to Sunday, 1 May.

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