[GreenKeys] Getting RTTY on the air

[Harold Hallikainen]

Thanks for all the comments! All the tuning controls, including P9 are
interesting in that they adjust both the frequency and the gain. I'll go
back in and adjust P9 so the tones leaving the TU are the same level. The
pots are real touchy. 10 or 22 turn pots would have been nice. I do
suspect that I have P9 set incorrectly. I will try recording the audio
leaving the TU and see if I can demodulate it correctly.

50 years ago, I did run 850 Hz shift by diode switching a variable
capacitor into the VFO of a Viking Ranger. My demodulator used tuned
circuits made with 88 mH telephone loading coils.

So far, I have the model 15 running in the shack. I have a model 14 typing
reperf in the garage. I MIGHT add it to the loop and look for a 14 TD.

THANKS for all the help! This is a great group!

Harold
https://w6iwi.org/rtty/



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