Welcome to Blaster TeLetype - BTL Version 1.51
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Contents:
~~~~~~~~~
1. Files included in release ZIP file
2. Files not included in ZIP file
3. Directories
4. Program description
5. Features
6. Web Site (Internet WWW page)
7. Email


1. Files included in release ZIP file
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
README.TXT   This file
CHANGES.TXT  Change history
FAQ.TXT      FAQ and Troubleshooting guide.
BTL.EXE      The program and help text combined. Do not rename this file!
BTL.FNK      Function key text file (edited from within BTL, ALT-F2..F12)
BTL.BRG      "Brag" file describing BTL for inclusion in transmissions
             of station descriptions etc.
EX1.BRG      Example Brag file showing various Brag file features
CQ.BRG       Example CQ Brag file
DE.BEG       Example "othercall de yourcall" Brag file
DE2.BRG      Example "othercall de yourcall yourcall yourcall" Brag file


2. Files not included in ZIP file
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
BTL.CFG      Created or updated by BTL.EXE when you exit, containing
             configuration information for BTL.

3. Directories
~~~~~~~~~~~~~~~
BTL looks for BTL.CFG in the directory BTL.EXE was found in.
BTL.FNK, and .BRG files are taken from the current directory.


4. Program description
~~~~~~~~~~~~~~~~~~~~~~~
Blaster TeLetype modulates and demodulates non-encrypted Baudot
Radio Teletype (RTTY) found on the short wave bands, and provides
a multi featured, user friendly user interface.

BTL uses a Sound Blaster compatible sound card and your PC to
demodulate RTTY audio tones from an SSB radio receiver, and
generates audio tones for an SSB radio transmitter. BTL uses the
PC to perform modern DSP processing, giving outstanding demodulation
performance, and to provide clean, sinusoidal, and phase continuous
tones for transmission.

BTL has many features including extensive on-line help. The help
describes all the features available in BTL, and gives additional
information on getting BTL to work on your PC. You can run BTL
with or without a sound card to access this help. Press F1 when
you see the main screen in BTL. If you still have problems or
just want to know a little more about BTL, you can read the
FAQ and Trouble Shooting Guide, FAQ.TXT

BTL is a DOS program and requires a 80386DX based IBM PC compatible
or better to run. To decode or generate RTTY you will also need a
Sound Blaster 1.0 or greater, compatible sound card and of course a
SSB receiver or transceiver. BTL sometimes works in a DOS box under
Windows, however NO ATTEMPT has been made to make BTL work under
Windows, so all credit must be given to Microsoft!

Initial BTL defaults are set to the European standard of USB and
1275/1445 Hz. It is easy to change these default to the US standard
or and other standard. Refer to the on-line help or FAQ. BTL will save
these new defaults in the config file for the next time you run BTL.

BTL is Copyright 1996,1997 by Robert Glassey, G0VTQ. All rights reserved.

BTL is free for amateur use. See the on-line help for conditions
of use and distribution, and information on voluntary registration.


5. Features
~~~~~~~~~~~~

  o  High performance RTTY Reception and Transmission using a Sound
     Blaster compatible sound card.
  o  Function key TX buffers with on-line editing while receiving
     simultaneously.
  o  Text file transmission, with the ability to include function key
     text, End of file, and End of transmission symbols.
  o  Word buffering during TX, allowing backspace editing during live
     transmissions.
  o  On screen tuning and level indicators.
  o  Fully adjustable centre frequency and shift, with selectable preset
     standards.
  o  User definable preset shift and centre frequency.
  o  Fully adjustable baud rate, 25 to 200 Baud.
  o  USB or LSB default Mark/Space polarity for receive and transmit.
  o  RXR Mark/Space tone reversal on receive
  o  Narrow/Wide tone filter option
  o  Unshift on Space (UNS)
  o  Extended Baudot, HAMCOMM compatible, plus US and ITU2 Baudot
     standards.
  o  All printable ASCII characters available with extended Baudot
  o  Fixed case option for Extended Baudot decoding
  o  Upper or lower case toggle for received text
  o  Received and transmitted text logging to a file
  o  43/50 line mode selectable
  o  Manually forced letters or figures shift during RX
  o  Manually forced New Line and Clear Screen on demodulation screen
  o  Demodulation pause key (Hold)
  o  Adjustable input sensitivity and output levels
  o  MIC AGC toggle and input selection
  o  Function states and settings saved between sessions
  o  Support for Sound Blasters version 1.0 through AWE32
  o  Compatible with most Sound Blaster compatible cards
  o  Sound Blaster parameter validation
  o  On-Line HELP!!!
  o  Bright Colours!


6. Web Site
~~~~~~~~~~~~
BTL has a home page on the Internet at the address:

http://www.geocities.com/SiliconValley/Heights/4477/


7. Email
~~~~~~~~~
robglassey@geocities.com

Further details available on the On-line Help REGISTRATION page.