[GreenKeys] Test sequences

David Christ radioham at mchsi.com
Wed Sep 29 21:51:12 EDT 2010


In a model 15 this causes a complete reversal of the code bars for 
each letter.  Makes everything jump.  It is not so extreme a test for 
a 28.

My manuals for test sets are out in my workshop but there is a 4 to 6 
character sequence that prints a repeating pattern on the tape.  RY 
is easy to read on a tape too.

Stretching my memory back to my MARS days 40 years ago, I think that 
NNNN was the standard end of message sequence used by the navy.

David

At 8:42 PM -0400 9/29/10, David Kirk wrote:
>   I seem to remember "R" and "Y" was used as a test pattern as it was
>some sort of extreme for the teletype to print, is that correct? What
>about "NNNN", what is the significance there? Just jarring old synapses
>in the brain, this stuff is familiar just can't put my finger on it....
>
>On 9/29/2010 4:46 PM, tony j. podrasky wrote:
>>  THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG 1234567890 TEST DE WBR70 -AR-
>>  RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRY
>>  THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG 1234567890 TEST DE WBR70 -AR-
>>  RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRY
>>  THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG 1234567890 TEST DE WBR70 -AR-
>>  RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRY
>>  THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG 1234567890 TEST DE WBR70 -AR-
>>  RYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRYRY
>>
>>  NNNN
>>
>>  ksweek at mindspring.com wrote:
>>>  Maybe there should be a daily email "diddle" in times of no traffic :)
>>>
>>>  Ken S
>>>  K4KQR
>>>  At 12:01 PM 9/29/2010, you wrote:
>>>
>>>>  Hey Wayne;
>>>>
>>>>  I think it's just that the group has been really quiet for a
>>>>  couple of weeks now.
>>>>
>>>>  UE,
>>>>  W6ESE - tony
>>>>  NNNNZCZC
>>>>
>>>>
>>>>  wb0cte at netscape.net wrote:
>>>>
>>>>>  I seem to have been taken off the greenkeys email list. If so,
>>>>  for what reason?
>
>______________________________________________________________
>GreenKeys mailing list
>Home: http://mailman.qth.net/mailman/listinfo/greenkeys
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:GreenKeys at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html



More information about the GreenKeys mailing list