[GreenKeys] Halloween

[John, W9DDD]

I had similar results, I liken it to trying to receive a marginal HF 
signal.   Type a few good characters, get a hit, then try to get back in 
synch, almost make it than another hit from a static crash.   Decided to 
wait to see if others had similar report as it had been a few months 
since the TU170 and 28 KSR had been exercised.   And one of the filters 
in the 170 isn't quite right.

I think we all appreciate any efforts to provide exercise for our 
equipment.   ITTY provides a constant source of test signals for 
machines, and interesting food for the glass terminal.  Jordan's efforts 
'normally' provide content of interest to my holiday visitors (fingers 
crossed for Thanksgiving?).


On 11/1/2022 2:35 PM, Jordan Spencer Cunningham wrote:
> 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.
>
> -
> Jordan Spencer Cunningham
> teletype.net <https://teletype.net> | GreenKeys Search Engine: 
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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 <http://www.navy-radio.com>
>
>
>
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The above comments or recommendations are SWAG. Use at your own risk.

John, W9DDD