Sorry for the very late announcement here! Next weekend we're again hosting a one day meetup with talks, measurements, and socializing here at Cardiff University. The full program and registration is up on the Cardiff University Amateur Radio Society website.
https://www.cardiffars.org.uk/roundtable
Phil Longhurst GW8BVI is going to be giving a talk on Interlacing and HD for DATV Express & LimeSDR.
The other talks of the day will cover a variety of topics including several talks from students and researchers about their projects and how to apply them in Amateur Radio systems.Interlacing is a 1930's technique which has a lot of benefits and is still in use today (1080i HD). But it is a pain to get it right and if you don't the results look terrible! Using paid s/w (Vmix) and free s/w (OBS broadcaster) it can be done if you know how. 1080i HD looks fab and can be transmitted via a mere 1MS/s DVB-S2 with low-latency h.264 (not even the latest 4K HEVC) phys channel.
- Cardiff RAYNET's Mesh Network
- Gallium Nitride and RF Power Devices
- Building a 1.3 GHz beacon with the PlutoSDR
- Using tranistor load lines to design amplifiers