Category Archives: Papers and Writings

Codes that Don’t Count

Posted on 14 May 2011 by rfbindl

Some Printing Telegraph Codes as Products of their Technologies (With Particular Attention to the Teletypesetter) By Dr. David M. MacMillan – Revision 3, 2010-04-27 Note 1: This is still very much a draft. I haven’t even fully proofread it – … Continue reading →

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Newsletters 1-4

Posted on 14 May 2011 by rfbindl

Newsletter #1 To everyone with interest and especially the Patrons of the Museum… Things are progressing! The museum is out of storage and is now in a 20′ by 24′ space adjacent to my home. The weather has been hot, … Continue reading →

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Hot Line Agreements

Posted on 14 May 2011 by rfbindl

The need for ensuring quick and reliable communication directly between the heads of government of nuclear-weapons states first emerged in the context of efforts to reduce the danger that accident, miscalculation, or surprise attack might trigger a nuclear war. These … Continue reading →

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Paper Tape – Quick Brown Fox

Posted on 14 May 2011 by rfbindl

Thanks to Dean Corcoran for paper tape image: The Quick Brown Fox Jumped Over The Lazy Dogs Back 1234567890 End Test. Relative to machine output, as TTY would print it.    Relative to my hand, as I’d hold on to … Continue reading →

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5 Unit Codes

Posted on 14 May 2011 by rfbindl

By Alan G Hobbs, G8GOJ President of British Amateur Radio Teledata Group, (c) 1999 http://www.bartg.demon.co.uk In articles that mention RTTY codes there is usually reference to Baudot, Murray and ITA2 codes. These codes are often taken to be identical and … Continue reading →

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ASCII 67 Code

Posted on 14 May 2011 by rfbindl

ASCII 63 ASCII 67 NULL=Blank NULL= Blank (all spacing) SOM=Start of Message SOH= Start of Heading EOA=End of Address STX= Start of Text EOM=End of Message ETX=End of Text EOT=End of Transmission EOT= End of Transmission WRU=Who aRe yoU ENQ=Enquiry … Continue reading →

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Telegraph Timeline

Posted on 14 May 2011 by rfbindl

Data Communications Time-line by Don R. House, N.S.E. Data in communications is defined as information, other than voice, transmitted in real time over a medium to a distant location other than voice. The telegraph has paved the way for other … Continue reading →

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Understanding ASCII Codes

Posted on 14 May 2011 by rfbindl

Text by Robert McConnell, James Haynes, & Richard Warren Original Source Douglas W. Jones http://www.cs.uiowa.edu/~jones/ To understand the original intent of the ASCII control codes, you have to think of teletypes, using paper tape, configured in a multidrop system with … Continue reading →

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History of Nadcomm

Posted on 14 May 2011 by rfbindl

The North American Data Communications Museum Fallbrook, CA — Prospect Heights, IL — Sandy Hook, CT What the heck is NADCOMM? Well, back in 1984 I was visiting a telephony equipment supplier in Virginia. During the tour of the facility … Continue reading →

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