07-01-14 13:08 Roy Witt wrote to Ed Vance about Storage   
      
    RW> @MSGID: <53B331BC.655.amtradio@capcity2.synchro.net>   
   Howdy! Roy,   
   -snip-   
    EV>> . = Low Tone   
      
    RW>> Dit - high tone   
      
    EV>> - = High Tone   
      
    RW>> Dah - low tone   
      
    EV> I didn't know of a FSK CW Standard when I chose what Tone for the   
    EV> Morse Code Elements.   
      
    EV> I saw Your line of CW as a period being lower in elevation than the   
    EV> hyphen was, so I assigned the Tones as they looked to me on my   
    EV> screen.   
      
    RW> I used the way they would sound vs what they looked like.   
      
   I used Audio Frequency Shift Morse Code on HF SSB to ID my station.   
      
   On HF SSB I listened to a W1AW RTTY broadcast and adjusted the Mark and   
   Space Pots on my 'Rube Goldberg' Audio RTTY Demodulator until the two   
   LEDs lit up and I could see Text being printed on my TV set screen.   
      
   Then, while still in RX Mode, IIRC I would adjust the Pots for the Mark   
   and Space Tones on my 'Rube Goldberg' Audio Frequency Shift Oscillator   
   to light up the LED for Mark on the Demodulator with the Key UP, and   
   the LED for Space with the Key DOWN.   
      
   When the W1AW broadcast was over I switch to TX and typed a line for   
   CQ , my Call Sign and typed K at the end and got answered by someone   
   and had my first HF RTTY QSO.   
      
   I have no idea what frequency I had set the Pots on the AFSK Osc for,   
   I just matched the tones of what worked to receive the W1AW broadcast.   
   At least the Shift was 850 cps and to me that is all that mattered.   
      
   IIRC the lower tone is used for the Space and the higher tone is Mark.   
   -snip-   
    EV> The Plastic? (Phenolic?, Bakelite?) Base the Key was mounted on   
    EV> allowed the Knob on the Key Lever to extend over the operating table,   
    EV> instead of over the Base, and to use the Key to send CW I would have   
    EV> to hold the other end of the Key down so it wouldn't flip up and down   
    EV> when I was sending CW.   
      
    RW> I fixed that problem by mounting the key to a 1/2" thick brass   
    RW> plate with rubber feet.   
      
    EV> I learned of a 'Tip' to reverse the Base so the Knob would be over   
    EV> some of the Base and I wouldn't have to hold the Key down when I used   
    EV> it, the 'Tip' IIRC was printed in a A.R.R.L. Book called "Hints and   
    EV> Kinks".   
      
    RW> You could have done as I did, but instead use old wheel weights   
    RW> (lead and antimony) to make yourself a mounting plate.   
      
   I'm a cheap LID Roy, Brass cost $$$$$$ , using a screwdriver to loosen   
   the two screws holding the key to the base, and to tighten them back   
   just cost me a little energy.        
   73   
   NNNN   
      
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