Share this page!

Enter URL or ID to Unroll

You can paste full URL like: https://x.com/threadreaderapp/status/1644127596119195649
or just the ID like: 1644127596119195649

How to get URL link on X (Twitter) App

  1. On the Twitter thread, click on or icon on the bottom
  2. Click again on or Share Via icon
  3. Click on Copy Link to Tweet
  4. Paste it above and click "Unroll Thread"!
  5. More info at Twitter Help
derek Profile picture
derek
@dereksgc
The pariah. Check out my website for more content: https://t.co/a4WzvKBihz If I don't respond to your DMs use Discord (link on website)
Apr 15, 2022 • 8 tweets • 4 min read
I got a recording of the FengYun-2H telemetry from @hmdsamarasekara who can receive it much stronger than I ever could, so here's a short thread on what I noticed about it just to conclude the topic (at least for now)
[1/8] It uses the "classic" double sideband modulation, so when demodulated I gain about 3dB on the signal.
Three sidebands in total, BPSK digi at 32 kHz, periodic pulse at 75 kHz, and some yet unidentified FSK around 165 kHz
[2/8]