Balloon telemetry data using radio teletype or RTTY (Baudot)

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  1. - 8th June 2011, 12:01 #5
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    johnmaetta
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    Default Re: Balloon telemetry data using radio teletype or RTTY (Baudot)

    Hi Mike,

    It doesn't take too high of a step to "go over my head". Anyway, I am using the 16F648A and I am not sure about DDS and PWM, but I did see that some people generate sine waves with PICs. I recall seeing a PIC schematic with four resistors bridging four PIC output pins. Then I believe each pin is pulsed in sequence with varying amplitude while being swept over time. Is that the premise?

    I want to learn...

    73

    John
    N6VMO
    Last edited by johnmaetta; - 8th June 2011 at 12:02. Reason: spelling
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