Pre každého seriózneho amateur radio operatora sa contest nekončí posledným spojením a odoslaním denníka vo formáteCabrillo in the contest committee. On the contrary - the real fun and learning process begins the moment you look at your results through the lens of data. Analyzing your own performance is the key to being faster, more efficient, and making fewer mistakes in the next year.
For many years, he was an unwritten favorite in this area software SH5. Over time, however, technology advanced and the community called for something more modern, open, and flexible. Simon took on this challenge, S53ZO, and brought to the world SH6– výkonný contes to vý analyzér, k to rý nadväzuje na to najlepšie z minulosti, ale pridáva moderný technologický základ.
From labels to data science: Who is S53ZO?
The name Simon, S53ZO, is not unknown in the community of amateur radio software developers. He had already won the favor of operators with his practical toolADIF to QSL Label. This tool solved the eternal problem of many of us - how to easily and aesthetically print connection data on paper labels for QSL cards directly from ADIF export.
Simon's approach has always been pragmatic: to create a tool that works, is clear, and solves a specific operator's problem. In SH6 however, he went much further. He decided to build a tool that can process thousands of connections and turn them into interactive maps, charts, and detailed statistics that even a professional data analyst would envy.
Spiritual successor of SH5
Starší analyzér SH5 bol dlho považovaný za štandard. Mnohí si pamätáme tie typické HTML reporty, ktoré zaplavovali amateur radio fóra po každom veľkom conteste akoCQ WW or IARU HF. However, SH5 was closed-source software and its development gradually hit limits.
SH6 comes as a modern alternative built on HTML and JS. This brings several significant advantages:
Openness: The code is available on GitHub,, which allows the community to verify calculations, add new contests, and fix bugs.
Multiplatform: Thanks to HTML and JS, you are not limited to just Windows.
Speed:Spracovanie obrovských logov s tisíckamiQSO takes literally a few seconds.
What all will SH6 reveal to you?
Keď do SH6 „hodíte“ svoj Cabrillo súbor, PROgram vygeneruje komplexný HTML report. Ten nie je len statickou stránkou, ale interaktívnym prehľadom vášho contestového života počas daného víkendu.
Rate dynamics (Rate Analysis)
One of the most important indicators in races is the 'rate' – the number of connections per hour. SH6 will render detailed graphs where you can see your peaks and troughs. By analyzing these graphs, you can determine when you were unnecessarily wasting time on a band that was no longer productive or when you should have preferred to stay in 'Run' mode instead of searching for multipliers.
Statistics by bands and modes
The program clearly divides your results into individual bands. You will see the percentage representation of continents, countries, and zones from 160m to 10m. If you operated in Mixed mode (CW/SSB), you will see the exact ratio of your activity in both modes, which is crucial for tactics in contests like UBA DX or IARU HF.
Geographical visualization (Maps)
Nothing tells you more about propagation conditions than a map. SH6 generates visualizations that show you where your signals went. You see 'clouds' of connections in Europe, lines heading to the USA, or rare paths to Oceania. This helps you understand whether your antennas are working as they should or if you have 'overshot' the optimal times for specific directions.
Analysis of unique calls and errors
Toto je časť, ktorú contestmani milujú aj nenávidia. SH6 dokáže identifikovať tzv. „Uniques“ – stanice, ktoré sa vo vašom logu vyskytujú, ale nie sú v logoch iných účastníkov (resp. v databázach). Často to indikuje „busted call“ – teda chybu v prijatej značke. Predbežná kontrola cez SH6 vám môže ušetriť cenné body, ktoré By vám inak komisia strhla pri finálnej kontrole.
Installation and usage
You can download the entire SH6 software from https://github.com/S53ZO/SH6.
The basic procedure is as follows:
You will download the repository from GitHub.
- You will extract the ZIP file on your computer
You will open the generated folder and in it the file
index.html.- You will upload one or two logs in CBR or ADIF format
- You will navigate through the analysis
The result is a professionally looking report that you can upload to your website, share with friends in the club, or simply archive for comparison with future editions.
Why you should try SH6?
Amateur radio in 2026 is about integrating technologies. It's no longer enough to just 'turn the knob'. Tools like SH6 from S53ZOposúvajú naše hobBy na úroveň serióznej analýzy dát. Ak to s contestovaním myslíte vážne, potrebujete vedieť, kde sú vaše slabiny.
You may find that you spend too much time on the 20-meter band searching for multipliers when you should be doing a mass 'run' into the USA. Or you will see that your beam on 15m has a dead spot at a certain azimuth. All this information is hidden in your log, and SH6 is the key that unlocks it.
Simon S53ZO odviedol kus skvelej práce pre celú komunitu. Tým, že software uvoľnil ako open-source, zabezpečil mu dlhovekosť. Ak ste doteraz používali starý SH5 alebo ste svoje logy vôbec neanalyzovali, teraz je ten správny čas prejsť naSH6.
73 a vidíme sa v štatistikách ďalšieho contestu!