[GreenKeys] HAL ST-8000A keypad info posted

[Nick England]

thanks to Jay WS7I
http://www.navy-radio.com/rtty/hal/ST-8000a%20keypad%20operation.pdf

More HAL manuals and info at
http://www.navy-radio.com/rtty/hal.htm

Nick England K4NYW
www.navy-radio.com
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