Thanks to all for the recommendations. I’ll look at the ones suggested. I often use ITTY or Tom’s streams for testing, but sometimes I want a particular format, or to punch tape from an existing file.

On Wed, Apr 12, 2023 at 3:52 PM Nick England <navy.radio@gmail.com> wrote:

I'd like to test my machines and FSK converters by sending a text file from my Windows 7 machine. I don't want to do anything other than set mark/space freq and speed. Everything I find wants to control my transceiver, display waterfalls, automatically reply 599, enter into logbook, etc. and I can't figure out how to just send audio.
I don't want to hook up a COM port (not even sure if I have one) - just plug into the headphone jack and drive my Dovetron.
I need something Simple, just like me.

Any recommendations?
Nick England K4NYW
www.navy-radio.com