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Okay, played around with this some more this morning.

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The frequency output definitely follows at single tone. And repeats above 3 Khz, then above 6 kHz, etc, so it could use an anti-aliasing filter. Some frequencies sound a little squirrely too.

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One issue I noticed which needs to be addressed is the PWM stays active after coming out of transmit. ?I’m also not getting anywhere near 5W out, it peaks out at about 1.5 watts.

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So, I put the original QCX chip back in to see what kind of power it should put out and now there is no power out at all. It doesn’t seem to be switching to transmit when I key. I hear side tone and the display shows what I’m keying, but the BS170 aren’t even getting a signal. The receiver is deafer then a paper mill worker ?(I live near a former big time paper producing town).

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I guess I have other issues to address first. Guess it’s time to ?“RTFM”.

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73, Steve KD1JV