[GreenKeys] What kind of test is this?

[Ralph]

Bit 1  (at top, anyway,) shows only at each end of the ‘test’.  Interesting display. 

Ralph - W8ROI

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> On Apr 13, 2022, at 4:45 PM, John W9DDD <w9ddd at tapr.org> wrote:
> 
> 
> History leading up to this.  Two weeks earlier I had mostly finished work on the reperforator.  It tested well at 45 and 75 baud.  Couldn't test 50 because I couldn't decode European tones.  Parts I ordered from Paul arrived and I installed them. 
> 
> Then I put the cover on and decided to test again to be sure I didn't mess up something.
> That's when I punched the the tape seen in the picture.  My first reaction was a stuck bit.  But the other bits made no sense other than it was a repeating pattern and ran for a length like a line of RY.  
> 
> Luckily before I started tweaking things I realized the problem.  Turns out to be a case of sending at 45 baud and receiving at 75.  What kept me scratching my head for a while was the uniform repeating pattern for such a long period
> 
> So the test was a memory test.  Didn't remember switching the speed on the test source (Volpe board).
> 
> Putting the cover on didn't break things like seems to happen more frequently than not.
> 
> John, W9DDD
> 
> 
>> On Apr 13, 2022, at 1:26 PM, WAYNE <teletypeparts at comcast.net> wrote:
>> 
>> See card.
>> 
>> 
>>> On 04/13/2022 1:31 PM John, W9DDD <w9ddd at tapr.org> wrote:
>>> 
>>> 
>>> I copied this while testing my reperf.
>>> 
>>> <tape-lng.jpg>
>>> At first glance I'm thinking RYs, but no it isn't.
>>> 
>>> -- 
>>> ---
>>> ----
>>> The above comments or recommendations are SWAG. Use at your own risk.
>>> John, W9DDD
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>> <Baudot code in a 28 typebox.jpg>
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