[GreenKeys] Halloween

[Jordan Spencer Cunningham]

Thanks for your input, Nick. That's very helpful-- It's hard for me to know about and account for variations in functionality across different hardware. I have a few ST-6's I intend get working, and one or two other TUs I've inherited, but I just haven't had the chance to get them into service, so I'm stuck with fldigi for now, which I know will not have quite the same results as a real TU when testing, especially behavior around autostart. For example, my "poor man's TU" simply checks for incoming text in fldigi, turns on the loop and motor once some is detected, and  then pipes the text out through my Volpe adapter to my machines until it doesn't detect anymore text. A diddle or mark wouldn't change that behavior for mine, but obviously on real hardware it would.

Now that you mention that with diddles keeping autostart on some hardware running, that does ring a bell.

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Jordan Spencer Cunningham
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On Tue, Nov 1, 2022, at 1:17 PM, Nick England wrote:
> Emulating ITTY-Autostart protocol is eminently reasonable. 
> 
> Some of us have machines that power up/down in autostart mode so idling with diddles for minutes between messages would just run the machines unnecessarily. Constant mark is probably OK. Many (most) TUs have mark-hold when there is no audio signal. 
> 
> That Heathkit must be a marginal design. I’m really surprised. Hard to imagine a proper TU being harmed by being constantly on mark. My Dovetron has been on 24/7 for at least five or six years. I just turn on computer audio when I want to print something. Otherwise the loop is in mark-hold. 
> 
> My zwei pfennigs worth. 
> Nick
> 
> -- 
> Nick England K4NYW
> www.navy-radio.com
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