Cardiff Microwave Roundtable - March 7, 2020

Discussion and Planning for Events and Streaming Activity
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MW0LNA
Posts: 4
Joined: Fri Jan 11, 2019 1:59 pm

Cardiff Microwave Roundtable - March 7, 2020

Post by MW0LNA » Fri Feb 28, 2020 3:51 pm

Hi folks,

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.
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.
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.
  • 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
Looking forward to seeing some of you next weekend!

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