[GreenKeys] Fwd: Hellschreiber on 630 meters

[Duncan Brown]

Not quite RTTY, but Teletype Corp made their own version of the 
Hellschriber, known as the M 17.


-------- Forwarded Message --------
Subject: 	Hellschreiber on 630 meters
Date: 	Sun, 19 Jan 2020 20:04:43 -0500
From: 	Mark Erdle <mark.erdle at gmail.com>
To: 	Duncan Brown K2OEQ <duncanancy at earthlink.net>



Duncan,

I've put my 630 meter station on the air as a Hellschreiber beacon using 
sequential multitone Hell.

You can see it now with the following setup using WSJT-X:

Receiver: Tune to 478.0 KHz LSB

WSJT-X Mode = WSPR

Hellschreiber text appears just below 1500 Hz on the Wide Graph. You'll 
probably need to adjust the gain and zero sliders in WSJT-X to get 
readable copy.

Other software with a waterfall display will work, but I set my 
Hellschreiber parameters to look good on WSJT-X. If your program shows 
the letters upside down, just switch to 475 KHz USB.

The sequence repeats at 10 minute intervals.
73,

Mark