RTTY tones mark 1275 how to adjust hi/low cuts???

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  • Problem
  • Updated 6 months ago
  • Solved
Unable to get output when the rtty tones are changed from the default 2125 to 1275. So some have posted this problem before, but no exact description of how to do it was posted. ie  what hi or low adjustments are set to and how saved?  thanks
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W5AP

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Posted 6 months ago

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Mark K5XH

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Official Response
Here is what I do for mark of 1275. I use DIGL and set an OFFSET of 1360 (1275 + 85).
Then set your transmit high and low to about 1545 and 1175. 

You can use Bret's method of using DIGU too - just adjust the math accordingly.

Using DIGL the mark tone will be at 1275 Hz and the space tone will be at 1445 Hz so you need to set the transmitter TX filter wide enough to pass these tones plus some margin for the keying sidebands. 

This may not be the best way but it works for me!

Using this method allows you to double click between the lines on the waterfall to tune in a signal quickly.

73, Mark K5XH