[GreenKeys] Re: Just a few RTTY basic questions and a holidaythanks to all

[Richard M. Gillingham]

Did you try inverting the signal?  switch the TU from normal to reverse. 
see what happens then...

Just a thought.

Gil, W1RG
----- Original Message ----- 
From: <Wndrrt at cs.com>
To: <ross at hypertools.com>
Cc: <greenkeys at mailman.qth.net>
Sent: Saturday, November 27, 2004 8:17 PM
Subject: Re: [GreenKeys] Re: Just a few RTTY basic questions and a 
holidaythanks to all


> Hi Dave,
>
> I live in 29 Palms, California which is out in the open, way open, desert
> south east of Palm Springs.
>
> I just received my first TU yesterday, so I have been looking at the 
> inputs
> and outputs.  I know where they go, but I am still a little nervous about 
> the
> first time setup.  I hooked the audio input to the speaker outlets on my 
> ham
> radio without the 600 ohm matching transformer for starters to see if the 
> TU
> would register a signal.  Keep in mind I did not know what the small meter 
> and
> lights on the front would do.  I tuned in what I thought was a RTTY 
> signal.  The
> meter went up and the lights started flashing off and on in a balanced
> pattern.  I then, and this is the funny part, recorded the signal on a 
> small tape
> recorder.  The 19 set is in another building for cleaning and oiling at 
> this
> time.  OK, so then I took the recording and the TU to the 19 to see if the
> blinking would be transferred to the loop power supply on the st5-A and 
> then to the
> loop on the 19.  The test before this was to use my loop supply alone and 
> tap
> the alligator clip on the terminal to see if the keys would start moving, 
> and
> they did!  So, now I hooked the loop supply of the st5-a to the 19 and the
> audio input to the tape recorder and set the whole thing in motion, with a 
> new
> type writer ribbon.  It worked, but it only prints French!  What is up? 
> Just
> kidding. It printed gibberish, and that is what I was looking for at this 
> point
> since who knows what I was tuned in to.  But each time I rewound the tape 
> and
> started out again, it printed the same gibberish in the same order.  So, 
> it
> seems to me if I can tune in a solid signal, there is a good chance that 
> the 19
> will print English with a French accent!
>
> Tune in the right signal.  It is pretty tuff to shoot a rabbit if you 
> don't
> know what one looks like.  Last week I went on the Internet and looked up 
> a
> site that had samples of all the sounds of digital communications.  This 
> was a
> real ear opener.  Now I just need to hear more of the right sound. 
> Clatternet
> may provide the answer.  The weekly bulletin may also help.  I can see 
> that a
> computer setup would help to zero in on a proper signal, or provide a test
> signal, but I have not gotten to that stage yet.  But I am having fun!
>
> Thanks for the frequencies and the computer program lead, MMTTY.
> 73s
> Jan Bogue KD6EMW
>
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