Ekki DF4OR
I enjoy digital modes on HF, especially on 30 and 60m, but will also participate in SSB contests occasionally.
Mostly posting in English.
| QTH | JO42 |
| Pronouns | they/them |
| Logbook | https://logbook.qrz.com/lbstat/DJ6DP |
| DARC DOK | H13 |
DJ6DP 🏳️⚧️ Daria
- 14 Followers
- 19 Following
- 39 Posts
Radio amateur from Germany, first licensed in 2006.
I enjoy digital modes on HF, especially on 30 and 60m, but will also participate in SSB contests occasionally.
Mostly posting in English.
I enjoy digital modes on HF, especially on 30 and 60m, but will also participate in SSB contests occasionally.
Mostly posting in English.
Carlo IU1KGS 📻Do you have screen protectors on your #amateurradio transceivers equipped with touch screens?
| yes | |
| no | |
| touch screens? What fresh hell is this? |
Poll ends at .
Magnus HedemarkWhy #MeshCore scales well when #Meshtastic doesn't. How two very different #LoRa architectures have very different ideal use profiles. #RDUMesh
https://magnus919.com/2026/05/how-meshcore-scales-where-other-lora-meshes-hit-walls/
How MeshCore Scales Where Other LoRa Meshes Hit Walls
This is a technical deep-dive into the MeshCore protocol’s architecture. If you’re looking for a buying guide or setup tutorial, start with the MeshCore FAQ or the official quick start. How MeshCore Scales Where Other LoRa Meshes Hit Walls The Problem: LoRa Mesh Scaling Is Not Incremental LoRa radio is a shared, narrow medium. The North American MeshCore preset uses 62.5 kHz of bandwidth, roughly the width of a single FM radio station. Every packet your node sends occupies that medium for everyone else within range. The physics is inescapable: more nodes means more contention, and at some point the network chokes on its own traffic.
@dk8hc Habemus Papam!
@vk6flab That looks like a very interesting design! I had not heard of it before, thanks for pointing me towards it. This could well end up being one of my next homebrew projects. 🙂
@N3VEM I have an old wooden box that was made to store index cards in an office setting. Almost nobody uses index cards anymore, but it also fits QSL cards nicely, allowing me to roughly sort them by continent/country.
@dk8hc Nein, OQRS über Clublog. Normalerweise schicke ich alles was geht über's Büro (an dich ist auch eine unterwegs!), aber in dem Fall war es mir das wert. Kein super gängiges Präfix und tolles Kartenmotiv, das musste sein. 🦜
@kn4ntu @ARISS_Intl Still gotta look into a better solution that is portable (as in: doesn't require a laptop).
Getting an IC-705 becomes more and more tempting to be honest, its waterfall makes it super easy to track a signal, I think it can even do that automatically. But the price point is nothing I could pay from a bit of spare change...
Getting an IC-705 becomes more and more tempting to be honest, its waterfall makes it super easy to track a signal, I think it can even do that automatically. But the price point is nothing I could pay from a bit of spare change...
@kn4ntu @ARISS_Intl Thank you! With some experience one starts to notice whether a signal is tuned dead center sounding clean, or hitting the limit of the demodulator bandwidth. I'd say there's a little more distortion and high pitched hiss. If one is quick enough it's possible to correct by hand before it has visible effects on the image.
However, on UHF the Doppler shift can go up to ±12kHz or so, which requires a rough starting point from a table or experience, else one might miss the signal.
However, on UHF the Doppler shift can go up to ±12kHz or so, which requires a rough starting point from a table or experience, else one might miss the signal.
And another one! 📺
This pass had a higher max elevation, but the results weren't better than with the previous pass. Sometimes it even seems that shallower passes, despite the longer distance the signal has to travel through the atmosphere, work better.
With a proper cross yagi or even some circular polarized antenna as well as actual tracking this might be a completely different case of course. I don't have any of that and the great thing about @ARISS_Intl is its accessibilty! 🙂
