September 4, 1995

Here are the APT updates:

      apt93r1w.obj       same as old apt_93b.obj
      apt93r2w.obj       radio port 2 version of apt_93b.obj

      apt93r1a.obj       visible light sync version, port 1
      apt93r2a.obj       visible light sync version, port 2

The "a" versions now include sync to the 1040 Hz visible light signal.
When using IMDISP for display, Now just enter lines = N (400 - 800 typical),
samples = 2400, bits = 8 and header = 0. The visible light scan will be 
centered for viewing (640 x 480). The signal-to-noise needs to be pretty
good for the sync to work (LED 1 blinks on sync) so use the "w" versions 
if you need to get every line of the pass and don't mind manual centering. 
See the original instructions for other operating hints.

73 Frank WB5IPM


 License and Disclaimer

 A no cost, non-exclusive license to use the enclosed software is granted
 to all users of the TAPR/AMSAT DSP-93 DSP computer, with the restriction
 that it be used only for non-commercial amateur radio applications. ALL
 other uses are prohibited under this license. Copyright 1991, 1992, 1993,
 1994, and 1995, Frank H. Perkins, Jr., WB5IPM. All rights reserved.

 This software is EXPERIMENTAL. It is offered AS IS, without Warranty or
 Guarantee of any kind. NO representation is made that this software is
 suitable for any purpose, or that its operation is reliable. Use this software
 strictly at your own risk. The author, AMSAT and TAPR accept no liability
 for any loss or injury arising directly or indirectly from its use.

 Never use this software under circumstances where its failure to operate
 or its failure to operate as expected, or the failure of the attendant
 hardware could create a dangerous situation, cause loss of data, or could
 cause damage to your amateur radio equipment, computer equipment, or
 any other equipment or property.

 Please contact Greg Jones at TAPR or the author for information on
 commercial licenses of this software.

 Frank H. Perkins, Jr.
