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Merging of QRA locator and Rain scatter maps

Details: Last Updated: 02 February 2026; Hits: 774

Merging my maps.

In order to make it easier to manage my maps, I have decided to merge them. As a result, only the QRA locator map will remain.
It combines the two functions.

Please change your bookmark.

Printing QSL made easy!

Details: Last Updated: 23 November 2025; Hits: 553

Managing labels for QSL cards is generally a problem if the data entry software does not include this feature.
I use Logger32 and WinTest for my logging, and used DF3CB's BV software to manage labels. Although the latter was complicated to use, it worked well. More annoying, it is no longer maintained or available on the author's website.
So I looked for another method to manage labels and adopted the web solution proposed by Simon S53ZO.
I found it to be well-designed, easy to use, very fast and reliable, requiring no other software such as ADIF pre filtering.
The author is also responsive and takes user feedback into account.
Here is a brief description.

APRS, understanding the telemetry

Details: Last Updated: 09 August 2025; Hits: 4495

The APRS protocol is used to transmit telemetry data, i.e. 5 analog values and 8 binary values (1 or 0).

It's not an easy protocol to grasp for the first time.
Let's see if we can get to the bottom of it.

HL-2K amplifier

Details: Last Updated: 30 January 2025; Hits: 5914

The TOKYO HIGH POWER RF amplifier HL-2K is an RF amplifier using two 3-500Z valves that is working on all ham bands, including WARC.
It is well built and is a nice looking amplifier, but has some problems and needs some improvements.

Arduino pro-mini et programmation par ICSP

Details: Last Updated: 03 February 2025; Hits: 2567

Petit tuto pour programmer un Arduino Pro-mini en ICSP avec un programmateur USBASP 2.0

Dans certains cas, il peut être nécessaire de programmer un Arduino via le port ICSP.
Par exemple, si le microcontrôleur a été remplacé par un neuf, si par mégarde le bootloader a été corrompu ou effacé, si le programme injecté est corrompu et qu'il n'y a plus d'accès via le port USB ou le connecteur FTDI, si le logiciel est distribué au format HEX, si on n'a plus accès au microcontrôleur via le port USB, etc...