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Old Mar 30, 2012, 09:59 AM
nils1982ks is offline
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Quote:
Originally Posted by Dennis Frie View Post
As far as I know, it should be more stable to use the audio for downlink (than teletext). Teletext could be an option, but it's a bit more difficult to read on the ground, and I would like to keep it simple.
I use an LM1881 and a microcontroller in a diversity setup, so not to much new stuff would be necessary.
Quote:
Originally Posted by Dennis Frie View Post
I started to write the code for downlink, but never implemented it, as I got annoyed with the audio-performance by my Lawmate video-tx. A working test-sketch for audio-telemetry can be found a couple of posts ago. You should more or less be able to use it directly, but I would recommend some check-sum etc.
I saw it and it looks very promising. With the audio-performance of my video-tx I was also not very happy, that's why I asked for teletext. Do you think there would be some timing/resource left in the existing code to implement the audio modem or should one use an independent controller? I think it would be enough to transmit the two necessary angles plus a checksum only.
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